O Paradigma de Stroop nos estudos brasileiros: uma revisão de escopo / The Stroop Paradigm in Brazilian studies: a scope review / El Paradigma de Stroop en los estudios brasileños: una revisión del alcance

O paradigma do Stroop é amplamente utilizado na avaliação das funções executivas. Este estudo investigou o uso de tarefas baseadas no paradigma de Stroop em estudos nacionais publicados entre 2000 e 2022, por meio de uma revisão de escopo. Buscaram-se estudos empíricos nas bases de dados: Pubmed, Scielo Brazil, LILACS, Pepsic, Index Psi Periódicos, Index-Psi teses, Biblioteca Digital Brasileira de Teses e Dissertações (BDTD) e Portal CAPES de Teses e Dissertações. Do montante inicial de 1448 estudos, 147 foram selecionados (90 teses/dissertações e 57 artigos). A maioria dos artigos foi publicada em revistas de psicologia e psiquiatria, e o controle inibitório foi o constructo mais mencionado como alvo das tarefas. Quatro versões foram identificadas, sendo a mais utilizada o Stroop de cores e palavras clássico (124 estudos). Diferentes escores/índices foram relatados. Houve poucos estudos psicométricos e com normas das tarefas. Versões computadorizas ainda são pouco utilizadas. A revisão colabora para mapeamento das versões utilizadas no âmbito nacional.

The Stroop paradigm is widely used in the executive functions assessment. This study investigated the use of tasks based on the Stroop paradigm in national studies published between 2000 and 2022, by doing a scope review. Empirical studies were selected in the following databases: Pubmed, Scielo Brazil, LILACS, Pepsic, Index Psi Periódicos, Index-Psi teses, Biblioteca Digital Brasileira de Teses e Dissertações (BDTD) and Portal CAPES de Teses e Dissertações. From the initial 1448 studies found, 147 were selected (90 theses/dissertations and 57 articles). Most articles were published in psychology and psychiatry journals, and the construct most targeted by the tasks was inhibitory control. Four versions were identified, and the classic Stroop Color and Word test was the most used one (124 studies). Different scores were reported. There were few psychometric studies and few studies with task norms. Computerized versions are still little used. The review helps to outline the versions used at the national context.

El paradigma de Stroop se usa ampliamente en la evaluación de las funciones ejecutivas. Este estudio investigó el uso de tareas basadas en esto paradigma en estudios nacionales publicados entre 2000 y 2022, haciendo una revisión de alcance. Los estudios empíricos fueron seleccionados en las bases de datos: Pubmed, Scielo Brasil, LILACS, Pepsic, Index Psi Periódicos, Index-Psi teses, Biblioteca Digital Brasileira de Teses e Dissertações (BDTD) y el Portal CAPES de Teses e Dissertações. De los 1448 estudios iniciales encontrados, se seleccionaron 147 (90 tesis / disertaciones y 57 artículos). La mayoría de los artículos se publicaron en revistas de psicología y psiquiatría, y el constructo más citado de las tareas fue el control inhibitorio. Se identificaron cuatro versiones, siendo la prueba clásica Stroop Colores y Palavras la más utilizada (124 estudios). Se informaron diferentes puntuaciones. Hubo pocos estudios psicométricos y pocos estudios con normas de tareas. Las versiones computarizadas todavía se utilizan poco. La revisión ayuda a identificar las versiones utilizadas a nivel nacional.

The relationship between executive function and gait in mildly mentally-impaired persons / 中华物理医学与康复杂志

Objective:To explore the relationship between executive function and gait in cases of mild amnestic cognitive impairment (aMCI).Methods:Twenty aMCI hospital patients formed an observation group, while 20 healthy counterparts were the control group. Both groups underwent the Tinetti test, followed by the " normal walking" single-task test and the " normal walking + Go/No-go" dual-task test. The pace, step width, stride length, Go/No-go task response time and accuracy rate were recorded.Results:In the single-task test, there was no significant difference in pace or stride width between the two groups, but the average stride length of the observation group (1.11±0.04)cm was significantly shorter than that of the control group. However, in the dual-task test, the average pace time (0.96±0.08)sec and stride length (1.02±0.06)cm of the observation group were significantly smaller than the control group′s averages, while their step width (0.11±0.02)cm was significantly wider. There was no significant difference between the two groups in the response time in a single (Go/No-go) task, but in the dual-task test, the observation group′s average time was significantly longer than the control group′s and the accuracy was significantly poorer. Both the error rate and the non-response rate were significantly higher than among the control group.Conclusions:Mild amnestic cognitive impairment reduces stride length and pace when walking and impairs executive function.

Inhibitory control after aerobic exercise with and without blood flow restriction in older adults / Controle inibitório após exercícios aeróbicos com e sem restrição do fluxo sanguíneo em idosos / Control inhibitorio después del ejercicio aeróbico con y sin restricción del flujo sanguíneo en adultos mayores

Introduction: Regular aerobic exercise (AE) can reduce the cognitive losses typically experienced with aging can be blunted by regular aerobic exercise (AE). AE also induces acute improvement of cognitive function among older adults; and AE practice with blood flow restriction (BFR) addss other benefits to elderly health, such as improvements in aerobic fitness, and increase in muscle mass and strength, however, it is not clear which EA protocol is more efficient to cognitive function. Objectives: Thus, the aimof this study was to compare AE protocols with and without BFR on the inhibitory control of the elderly. Methodology: Twenty-one elderly performed the Stroop test before and after three AE sessions in a repeated measure, cross-over design: AE with high load (70% VO2max), AE with low load (40% VO2max), and AE with blood flow restriction (AE-BFR) BFR (40% VO2max and 50% of BFR). Results and discussion: There was no significant effect from experimental sessions on cognitive function, assessed by inhibitory control in Stroop test. Perhaps, the load applied was not proper to stimulate cognitive function improvements, as seen the moderate loads have been more efficient to increase cerebral blood flow, among other physiological mechanisms encompassed. Final Considerations: Moreover, we observed very heterogeneous responses among individuals and sessions, suggesting that future research also considers biological individuality.

Introdução: As perdas cognitivas tipicamente experimentadas com o envelhecimento podem ser atenuadas por exercícios aeróbicos (EA) regulares. EA também induz melhora aguda da função cognitiva em idosos; e a prática de EA com restrição de fluxo sanguíneo (RFS) agrega outros benefícios à saúde do idoso, como melhorias na aptidão aeróbia e aumento da massa e força muscular. No entanto, não está claro qual protocolo de EA é mais eficaz para a funcao cognitiva. Objetivos: Assim, o objetivo deste estudo foi comparar diferentes protocolos de EA com e sem RFS no controle inibitório de idosos. Metodologia: Vinte e um idosos realizaram o teste de Stroop antes e após três sessões de EA em medida repetida, desenho cruzado: EA com alta carga (70% VO2máx), EA com baixa carga (40% VO2máx) e EA com RFS (40% VO2máx e 50% do RFS). Resultados e discussão: Não houve efeito significativo das sessões experimentais na função cognitiva avaliada pelo controle inibitório no Stroop Test. Talvez, as cargas aplicadas não tenham sido adequadas para estimular melhorias no controle inibitório, visto que as cargas moderadas têm sido mais eficientes para aumentar o fluxo sanguíneo cerebral, entre outros mecanismos fisiológicos Considerações Finais: Além disso, observamos respostas bastante heterogêneas entre indivíduos e sessões, sugerindo que pesquisas futuras considere também a individualidade biológica.

Introducción: El ejercicio aeróbico regular (EA) puede reducir la perdida cognitiva tipicamente experimentada durante el envejecimiento. EA puede tambien inducir mejora en la funcion cognitiva entre adultos mayores, ademas, la practica de resticcion de flujo sanguíneo (RFS) agrega otros beneficios para la salud en los ancianos, así como mejoras en la aptitud aeróbica, aumento de la masa muscular y la fuerza, sin embargo, no está claro qué protocolo de EA es más eficiente para la función cognitiva. Objetivos: El objetivo de este estudio fue comparar los protocolos de EA con y sin RFS en el control inhibitorio de los ancianos. Metodología: Veintiún ancianos realizaron la prueba de Stroop antes y después de tres sesiones de EA en medida repetida, diseño cruzado: EA con carga alta (70% VO2max), EA con carga baja (40% VO2max) y EA con restricción del flujo sanguíneo (EA-RFS) RFS (40% VO2max y 50% de RFS). Resultados y discusión: No hubo efecto significativo de las sesiones experimentales sobre la función cognitiva, evaluada por el control inhibitorio en la prueba de Stroop. Quizás, la carga aplicada no fue la adecuada para estimular mejoras en la función cognitiva, ya que las cargas moderadas han sido más eficientes para aumentar el flujo sanguíneo cerebral, entre otros mecanismos fisiológicos englobados. Consideraciones finales: Además, nosotros observamos respuestas muy heterogéneas entre individuos y sesiones, lo que sugiere que para futuras investigaciones también se debe considerar la variabilidad biológica.

Spatial incompatibility training can prevent the occurrence of the enhanced Simon effect in elderly / Treinamento de incompatibilidade espacial pode prevenir a ocorrência do efeito Simon ampliado em idosos

The Simon effect is typically larger for older people than for young adults, maybe due to age-related decline in inhibitory capabilities. 32 right-handed aged people (5 male, 27 female; mean of 67,1 years ± 5,5) participated in this study. In screening were used the Mini-Mental State Examination and the Center for Epidemiological Study Depression Scale. Then, half of the participants practiced the spatial incompatibility task before the Simon task and the other group was only tested on the Simon task. The analysis of variance considering practice (incompatible, no-practice group) and correspondence (corresponding, non-corresponding) revealed a two-way interaction (F = 7.07; p = 0.012; ηp2 = 0.191) showing that the Simon effect was eliminated in the incompatible practice group, but remained intact in the group with no previous practice. These results indicated that cognitive processes required to the transfer of learning are preserved in elderly, being potentially useful to influence spatial inhibitory capabilities.

O efeito Simon é tipicamente maior em pessoas idosas do que em adultos jovens, talvez devido ao declínio de capacidades inibitórias em função da idade. Participaram deste estudo 32 pessoas idosas e destras (5 homens e 27 mulheres; média de 67,1 anos ± 5,5). Para rastreio, foram usados o Mini Exame do Estado Mental e a escala de depressão do Center for Epidemiological Studies. Metade dos participantes praticou a tarefa de incompatibilidade espacial antes da tarefa de Simon e o outro grupo foi testado apenas na tarefa de Simon. A análise de variância, considerando a prática prévia (incompatível ou sem prática) e correspondência (correspondente, não correspondente), indicou uma interação dupla (F = 7,07; p = 0,012; ηp2 = 0,191), demonstrando que o efeito Simon foi eliminado no grupo de prática incompatível, mas permaneceu ampliado no grupo sem prática anterior. Esses resultados indicaram que os processos cognitivos necessários para transferir a aprendizagem estão preservados em idosos, sendo potencialmente úteis para influenciar as capacidades inibitórias espaciais.

Effect of twelve-week aerobic exercise on inhibitory control abilities in overweight children / 中国康复理论与实践

ObjectiveTo observe the effect of twelve-week aerobic exercise on inhibitory control abilities and the change of brain activation in overweight children. MethodsFrom October to December, 2021, 20 overweight children from a primary school in Changping District were selected for a twelve-week aerobic exercise intervention. Their inhibitory control abilities were measured by Flanker task before and after intervention, while their brain activation levels during the task were detected by functional near infrared spectroscopy (fNIRS). ResultsThe interactions between task type and time of accuracy and reaction time in inconsistent tasks Flanker task were significant (F > 9.277, P < 0.05), with higher accuracy and lower reaction time of after intervention (P < 0.05). After intervention, ch1, ch2, ch3, ch6, and ch8 channels were activated by inconsistent tasks (P < 0.05). ConclusionA twelve-week aerobic exercise intervention could improve the inhibitory control ability, and increase the prefrontal cortex activation during inconsistent tasks in overweight children.

Correlates between sexual desire and disposition to sexual fantasies with inhibitory control and cognitive planning in young Colombians / Correlación del deseo sexual y disposición a fantasías sexuales con control inhibitorio y planificación cognitiva en jóvenes colombianos

Abstract Objective: the research was oriented to investigate the correlation between some executive functions (inhibitory control, risk-benefit calculation, cognitive flexibility, the planning ability, and decision making) and the general, dyadic and solitary sexual desire, sexual desire inhibition and disposition to sexual fantasies in a 17-to-30-year-old people sample. Method: An observational cross-sectional study in a purposive sample of 64 young college students, aged between17 and -30, who were in a couple relationship at the time of the study and gave their consent for their participation in the research. The participants completed the Neuropsychological Battery of Executive Functions and Frontal Lobes tasks (BANFE for its abbreviation in Spanish): Stroop, card games, card classification and Hanoi Tower, and it was administered the Inhibited Sexual Desire Test, the Sexual Desire Inventory (SDI-2) and the Scale of Attitude Towards Sexual Fantasies. Results: The results indicate a correlation between the executive functions and sexual desire; it was found a correlation between total and dyadic sexual desire and disposition towards sexual fantasies with inhibitory control; and the inhibited sexual desire was correlated to planning ability and inhibitory control. Discussion: Although the study presents some methodological limitations (size of the sample and need of a more rigorous validation of instruments in the Colombian population), the results confirm previous research findings, allowing to formulate new hypotheses in the field of sexuality and neurosciences. The study findings draw attention to the educational implications aimed to develop the executive functions in adolescents and young people to prevent risky sexual behavior.

Resumen Objetivo: El estudio se orientó a indagar la relación entre algunas funciones ejecutivas (FE) (control inhibitorio, cálculo de riesgo-beneficio, flexibilidad cognitiva, habilidad de planeación y toma de decisiones) con el deseo sexual general, diádico y solitario, inhibición del deseo sexual y disposición hacia las fantasías sexuales en una muestra de jóvenes entre 17 y 30 años. Método: Estudio de enfoque cuantitativo de corte transversal. Mediante un muestreo intencional por conveniencia se seleccionaron 64 jóvenes entre 17 y 30 años, estudiantes universitarios que se encontraban en una relación de pareja. Para evaluar las variables de las FE se utilizaron tareas de la Batería Neuropsicológica de Funciones Ejecutivas y Lóbulos Frontales (BANFE): Stroop, juego de cartas, clasificación de cartas y Torre de Hanoi, y las variables relacionadas con el deseo sexual fueron valoradas mediante el Test del Deseo Sexual Inhibido, el Inventario del Deseo Sexual (SDI-2, sigla de Sexual Desire Inventory) y la Escala de la Actitud hacia las Fantasías Sexuales. Resultados: Se encontraron correlaciones entre las variables del deseo sexual, disposición hacia las fantasías sexuales y el deseo sexual inhibido; deseo sexual total y diádico y disposición hacia las fantasías sexuales correlacionó con el control inhibitorio; y el deseo sexual inhibido correlacionó con la planificación y el control de impulsos. Discusión: Los hallazgos del estudio llaman la atención sobre las implicaciones educativas encaminadas a desarrollar las funciones ejecutivas en adolescentes y jóvenes con el fin prevenir conductas sexuales de riesgo.

Patrones de ahorro y freno inhibitorio: un estudio desde la neuroeconomía conductual / Saving patterns and inhibitory control: a study within behavioral neuroeconomics / Padrões de economia e de frenagem inibitória: um estudo de neuroeconomia comportamental

La neuroeconomía es una de las neurociencias con base cognitiva ­ comportamental que ha experimentado un crecimiento teórico, metodológico y experimental bastante amplio en los últimos 20 años. Su capacidad de combinar elementos de salud cerebral como por ejemplo el adecuado freno inhibitorio que repercute necesariamente en una capacidad amplia de posponer la recompensa con comportamientos de base económica concretos como el ahorro puede implicar un nuevo eje de desarrollo de la salud mental en los estudiantes de psicología de la Universidad Mayor de San Andrés en la ciudad de La Paz, Bolivia. De hecho, existe amplia evidencia documentada de que la capacidad de posponer la recompensa inmediata por un bien mayor constituye un gran predictor del rendimiento académico al mismo tiempo que deriva en habilidades positivas a lo largo de la vida. Este estudio constituye el primero en su naturaleza y área en la carrera de Psicología de la UMSA y constituye un aporte directo a la planificación de la salud mental de los estudiantes de la carrera.

Neuroeconomics is one of the cognitive and behavioral based neurosciences that has undergone a substantial growth in experimental, theoretical and methodological terms within the last 20 years. Its capacity to combine brain health factors such as an adequate inhibitory control (that necessarily will influence gratification delay) with economic-related behaviors such as saving, may generate a new axis of development of the mental health in psychology students of the Higher University of San Andres in La Paz, Bolivia. As a matter of fact, there is robust evidence that gratification delay executed in order to get a greater good constitutes in and on itself an accurate predictor of academic performance as well as positive life skills. This study is the first to be conducted on this area in the psychology undergraduate program and could be a potential contribution to the enhancement of the psycho-emotional health of the students who participated in it.

A Neuroeconomia é uma das neurociências de base cognitivo-comportamental que experimentou um amplo crescimento teórico, metodológico e experimental nos últimos 20 anos. Sua capacidade de combinar elementos de saúde cerebral, como o freio inibitório apropriado que necessariamente afeta uma ampla capacidade de adiar a recompensa com comportamentos de base econômica específicos, como poupança, pode implicar em um novo eixo de desenvolvimento da saúde mental em alunos de psicologia da Universidad Mayor de San Andrés na cidade de La Paz, Bolívia. Na verdade, há ampla evidência documentada de que a capacidade de adiar a recompensa imediata por um bem maior é um forte indicador de desempenho acadêmico, ao mesmo tempo que leva a habilidades positivas ao longo da vida. Este estudo é o primeiro em sua natureza e área na carreira de Psicologia da UMSA e constitui uma contribuição direta para o planejamento da saúde mental dos alunos da carreira.

Emotional eating: associations among impulsivity, depression, sex, and weight status in young adults / Alimentação emocional: associações entre impulsividade, depressão, sexo e peso corporal em jovens adultos / Alimentación emocional: asociaciones entre impulsividad, depresión, sexo y peso corporal en jovenes adultos

Emotional Eating (EE) is defined as eating under the influence of negative emotions, and is associated with Eating Disorders, impulsivity, depression and weight gain. However, previous literature is not clear regarding how these variables explain EE. The present study aimed to identify predictors of EE and its relationship to impulsivity, depression, eating style, and weight status in young adults. Sex differences in eating style were examined, and differences in EE between obese/overweight and normal/underweight individuals were tested. Two-hundred college students completed online questionnaires assessing all variables. Low inhibitory control, depression symptoms, female sex, and higher body mass index significantly predicted scores on EE. Obese/overweight and female participants presented increased EE. Correlation analysis evidenced positive associations between EE, Uncontrolled Eating, body mass, and low inhibitory control. Results indicate that EE is related to psychological factors such as impulsivity and depression, and biological factors, such as sex and body mass.

Alimentação Emocional (AE) é definida como comer sob influência de emoções negativas e está associada a transtornos alimentares, impulsividade, depressão e ganho de peso. Entretanto, a literatura não é clara sobre como essas variáveis explicam AE. Este estudo buscou identificar preditores da AE e sua relação com impulsividade, depressão, estilo alimentar e peso corporal em jovens adultos. Foram examinadas diferenças entre sexo no estilo alimentar e diferenças na AE entre indivíduos obesos/com sobrepeso e normais/abaixo do peso. Duzentos estudantes universitários preencheram questionários online avaliando todas variáveis. Baixo controle inibitório, sintomas de depressão, sexo feminino e maior índice de massa corporal predisseram AE. Indivíduos obesos/com excesso de peso e do sexo feminino apresentaram aumento da AE. Foram evidenciadas correlações positivas entre Descontrole Alimentar, peso corporal e baixo controle inibitório. Os resultados indicam que a AE está relacionada a fatores psicológicos, como impulsividade e depressão, e biológicos, como sexo e massa corporal.

Alimentación emocional (AE) se define como comer bajo la influencia de emociones negativas y se asocia con trastornos alimentarios, impulsividad, depresión y aumento de peso. Sin embargo, la literatura no es clara acerca de cómo estas variables explican AE. Este estudio buscó identificar predictores de AE y su relación con impulsividad, depresión, estilo de alimentación y peso corporal en jovenes adultos. Se examinaron diferencias entre sexo en el estilo de alimentación y diferencias en AE entre sujetos obesos/con sobrepeso y normales/con bajo peso. Doscientos estudiantes universitarios completaron cuestionarios en línea evaluando todas variables. Bajo control inhibitorio, síntomas de depresión, género femenino y índice de masa corporal más alto predijeron AE. Personas obesas/con sobrepeso y mujeres mostraron aumento de AE. Se evidenciaron correlaciones positivas entre comida no controlada, peso corporal y bajo control inhibitorio. AE está relacionada con factores psicológicos, como impulsividad y depresión, y biológicos, como género y masa corporal.

Does ADHD worsen inhibitory control in preschool children born very premature and/or with very low birth weight?

Abstract Introduction Deficits in executive functioning, especially in inhibitory control, are present in children born very premature and/or with very low birth weight (VP/VLBW) and in children with attention-deficit/hyperactivity disorder (ADHD). Objective To evaluate whether ADHD imposes additional inhibitory control (IC) deficits in preschoolers born VP/VLBW. Methods 79 VP/VLBW (4 to 7 years) children were assessed for ADHD using the Schedule for Affective Disorders and Schizophrenia for School Aged Children - Present and Lifetime Version (K-SADS-PL). IC was measured with Conners' Kiddie Continuous Performance Test (K-CPT 2) and the Behavior Rating Inventory of Executive Function - Preschool Version (BRIEF-P).Results: No significant differences were found between ADHD (n = 24) and non-ADHD children (n = 55) for any of the measures (p = 0.062 to p = 0.903). Both groups had deficits in most K-CPT 2 scores compared to normative samples, indicating poor IC and inconsistent reaction times. Conclusions ADHD does not aggravate IC deficits in VP/VLBW children. Either neuropsychological tasks and parent reports of executive functions (EFs) may not be sensitive enough to differentiate VP/VLBW preschoolers with and without ADHD, or these children's EFs are already so impaired that there is not much room for additional impairments imposed by ADHD.

Impulsivity influences food intake in women with generalized anxiety disorder

Objective: Eating behavior is affected by psychological and neurocognitive factors. However, little is known about this relationship in anxious patients. Our aim was to investigate the associations between impulsivity, inhibitory control, energy-dense food consumption, and body mass index (BMI) in women with generalized anxiety disorder (GAD). Methods: In this cross-sectional study, 51 adult females with GAD answered the Barratt Impulsiveness Scale (BIS-11) and participated in a go/no-go task using food images. Anthropometric measurements were evaluated. A food frequency questionnaire and a snack test were used to study eating behavior. Pearson correlation and multiple linear regression were performed to analyze the variables of interest, adjusted by age. Results: Impulsivity predicted intake of sugar (p = 0.016, 95%CI 0.67-6.05), total fat (p = 0.007, 95%CI 0.62-3.71), and saturated fat (p = 0.004, 95%CI 0.30-1.48). The snack test showed a positive correlation between presence of impulsivity and intake of biscuits (R = 0.296; p = 0.051). Response inhibition to food images in the go/no-go task paradigm did not predict BMI or food intake. Conclusion: Impulsivity was predictive of higher sugar and saturated fat intake in women diagnosed with GAD. Our findings add to the literature regarding the association between neuropsychological factors and food consumption in this specific population.

Effects of rewards and punishments on inhibition for individuals with trait anxiety / 西安交通大学学报(医学版)

Objective: To explore the effects of motivation of rewards and punishments on inhibitory control on college students with trait anxiety and non-trait anxiety. Methods: In the current study, stroop task was used to induce the cognitive conflic and then performance comparison was made between traitanxiety and non-trait anxiety college students in completing Stroop tasks with or without rewards and punishments. Results: The results showed that the response time of the trait anxiety group was shorter than that of the non-trait anxiety group. For both trait and non-trait anxiety subjects, the reaction time under the incongruent condition was significantly longer than that under the congruent and unrelated condition; the reaction time under the congruent condition was significantly shorter than that under the unrelated condition. For all subjects, the reaction time under the reward and punishment condition was significantly shorter than that under the non-reward and punishment condition. The Stroop effect under reward and punishment condition was significantly smaller than that under no reward and punishment condition. The response time of the trait anxiety group under the condition of punishment was significantly shorter than that under the condition of non-reward and punishment and the condition of reward. The response time of the non-trait anxiety group under the reward condition was significantly shorter than that under the punishment condition and the non-reward and punishment condition. Conclusion: Trait anxiety individuals were sensitive to punishments, while non-trait anxiety individuals were sensitive to rewards. Both reward and punishment could strengthen the inhibition control of the individuals.

Response inhibition function in patients with drug-naive bulimia nervosa / 上海交通大学学报（医学版）

Objective • To investigate the change of response inhibition function in patients with drug-naive bulimia nervosa (BN) and its relationship with eating disorders and self-reporting impulsiveness. Methods • Thirty-five drug-naive BN patients who accepted psychological counseling in Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine between Aug. 2018 and Jun. 2019, and 23 healthy controls (HC) were recruited. The eating disorder and impulsiveness were compared between the two groups by using the Chinese version of Eating Disorder Examination Questionnaire 6.0 (EDE-Q 6.0) and Barrett Impulsiveness Scale-11 (BIS-11), respectively. The stop signal task (SST) was used to assess response inhibition function. The scale scores and SST results were compared between the two groups, and the correlation of stop signal reaction time (SSRT) with BIS-11 score, EDE-Q 6.0 score, the age of onset and the duration of illness was analyzed. Results • Compared with the HC group, the BN group demonstrated significantly longer SSRT in the SST (P=0.003), and had a higher total score of BIS-11 (P=0.004), attentional impulsiveness score (P=0.008) and non-planning impulsiveness score (P=0.002). SSRT was positively associated with the age of onset (r=0.503,P=0.006), negatively associated with the score of weight concern subscale (r=-0.337, P=0.048), and not correlated with the BIS-11 score and the duration of illness in drug-naive BN patients. Conclusion • Drug-naive BN patients have high impulsiveness, and their defects in response inhibition are associated with the age of onset and weight concern.

Mecanismos de desarrollo de la atención selectiva en población infantil / The development mechanisms of selective attention in child population

Resumen La atención selectiva es la función cognitiva que orienta la atención hacia los objetos o estímulos que resultan relevantes evitando la distracción frente a aquellos que son irrelevantes. En general, la literatura indica que el desempeño de la atención selectiva mejora notablemente con la edad, sin embargo, las diferencias vinculadas a esta variable no se cumplen para todas las condiciones de cantidad de estímulos distractores ni para todos los grupos de edad. Asimismo, aún no se ha explorado la contribución del control inhibitorio y la velocidad de procesamiento a esta mejora progresiva. Por este motivo, y debido a la escasez de estudios en población infantil, se propuso analizar la contribución relativa de la velocidad de procesamiento y de la inhibición al desempeño en una tarea de atención selectiva y búsqueda visual en esta etapa evolutiva. Para ello, se administró una tarea de búsqueda de conjunciones y una tarea simple de velocidad de respuesta a 295 niños de 6 a 13 años de edad. Los resultados permitieron plantear dos conclusiones principales: por un lado, que la atención selectiva mejora consistentemente durante la niñez y, por otro lado, que no existe un mecanismo general y exclusivo capaz de explicar estas diferencias durante esta etapa vital. Así, tanto la velocidad de procesamiento como el control inhibitorio contribuyen al desarrollo de la atención selectiva y ambos mecanismos cognitivos actúan de manera complementaria más que excluyente.

Abstract Selective attention allows directs attention to relevant objects or stimuli, while avoiding distraction from those that are irrelevant. The literature indicates that performance in CVS tasks improves markedly with age. However, age-related differences are not met neither for every number of distractor conditions nor for all age groups. In addition, the contribution of inhibitory control and processing speed to this progressive improvement has not yet been explored. For this reason, and due to the scarcity of studies using CVS paradigm to evaluate selective attention in children, the present study aimed to analyze the relative contribution of processing speed and inhibition to performance during this evolutionary period in a selective attention and CVS task. To do this, a CVS and a simple response speed task were administered to 295 children aged 6-13 years old. Results offered two conclusions: first, selective attention improves during childhood; second, there is no general and exclusive mechanism capable of explaining these differences during this period. Thus, both processing speed and inhibitory control contribute to development of selective attention, and they seem to be more complementary mechanisms than excluding ones.

Inhibitory Control And Symptomatology Of Attention Deficit Hyperactivity Disorder / El Control Inhibitorio Y La Sintomatología Del Trastorno Por Déficit De Atención Con Hiperactividad

Abstract Background: Inhibitory control has been described as a factor causing difficulties in the regulation present in the ADHD. Objective: The aim was to analyze the relationship between inhibitory control and symptoms of ADHD in a sample of 81 subjects diagnosed with ADHD (Mage=10.05, SD=2.53). Methods: A quantitative, cross-sectional and correlational scope research was carried out. The instruments used were the ADHD RS IV and SIMON experiment. Correlation inferential statistical regression and regression processes were applied. Results: Three regression models were tested, where inhibitory control presents a significant prediction with the (a) attention deficit F (1,79) =20.69, p=<.001, R 2 =.21, (b) hyperactivity and impulsivity F (1, 79) =5.90, p=.01, R 2 =.07 and (c) the combination of both (a+b) F (1, 79) =13.25, p=< .01, R 2 =.14. Conclusions: The findings suggest that inhibitory control is one of the main executive functions that determines the degree of affectation of the symptomatology of the child population with ADHD.

Resumen Antecedentes: El control inhibitorio ha sido descrito como un factor causal que genera problemas de déficit de atención, impulsividad e hiperactividad que engloban la sintomatología del TDAH. Objetivo: El fin de esta investigación fue analizar la relación entre el control inhibitorio y los síntomas del TDAH en una muestra de 81 sujetos diagnosticados con TDAH (M edad = 10.05, DE = 2.53). Método: Se ejecutó una investigación cuantitativa, transversal y alcance correlacional. Los instrumentos utilizados fueron ADHD RS IV y el experimento SIMON. Se aplicaron procesos de análisis estadístico inferencial correlacional y regresión. Resultados: Tres modelos de regression fueron testeados, donde el control inhibitorio present una relación significativa, prediciendo (a) el déficit de atención F (1, 79) = 20.69, p=< .001, R 2 =.21, (b) hiperactividad e impulsividad F (1, 79) = 5.90, p=.01, R 2 =.07 y (c) la combinación de ambos (a+b) F (1, 79) = 13.25, p=< .01, R 2 =.14. Conclusiones: Los hallazgos encontrados sugieren que el control inhibitorio es una de las funciones ejecutivas principales que determina el grado de afectación de la sintomatología de la población infantil con ADHD.

Electroencephalogram Evidence for Memory Suppression: A Systematic Review / Evidências de Eletroencefalograma para Supressão de Memória: Uma Revisão Sistemática / Evidencia de Electroencefalograma para la Supresión de la Memoria: Una Revisión Sistemática

Abstract Understanding how people forget is one of the fundamental goals of the science of memory. Recent studies indicate that humans can voluntarily regulate awareness of unwanted memories by stopping the retrieval process that would ordinarily bring past experience into awareness. Event-related potential (ERP) research on memory retrieval reveals that electrophysiological effects with specific timing and scalp topography serve as markers of memory processes. This systematic review examines the literature regarding EEG alterations in memory suppression, highlighting their results on electrophysiological indicators. A systematic review from January 2007 to November 2017 was conducted using PubMed, Embase and ScienceDirect databases. As results, 12 studies were eligible for inclusion. Quantitative EEG can be a objective tool for studying the mechanisms involved in memory suppression. There is evidence that a parietal positivity around 400-800ms after cue presentation is an ERP marker of conscious recollection during memory retrieval and a larger N2 deflection during retrieval suppression predicted greater suppression-induced forgetting.

Resumo Compreender como as pessoas esquecem é um dos objetivos fundamentais da ciência da memória. Estudos recentes indicam que os humanos podem voluntariamente regular a consciência de memórias indesejadas, interrompendo o processo de recuperação que normalmente levaria experiências passadas para a consciência. A pesquisa de Potenciais Relacionados a Eventos (PRE) sobre recuperação de memória revela que os efeitos eletrofisiológicos, com temporização específica e topografia do couro cabeludo, servem como marcadores de processos de memória. Esta revisão sistemática examina a literatura sobre alterações de EEG na supressão de memória, destacando seus resultados em indicadores eletrofisiológicos. Uma revisão sistemática de janeiro de 2007 a novembro de 2017 foi realizada usando as bases de dados PubMed, Embase e ScienceDirect. Como resultados, 12 estudos foram elegíveis para inclusão. Há evidência de que uma positividade parietal em torno de 400-800ms após a apresentação da pista é um marcador de PRE de lembrança consciente durante a recuperação da memória. Além disso, uma maior deflexão do componente N2 durante a supressão da recuperação sugeriu maior esquecimento induzido pela supressão.

Resumen Comprender cómo las personas olvidan es uno de los objetivos fundamentales de la ciencia de la memoria. Estudios recientes indican que los humanos pueden regular voluntariamente la conciencia de los recuerdos no deseados al detener el proceso de recuperación que normalmente llevaría la experiencia pasada a la conciencia. La investigación de Potenciales relacionados con eventos (PRE) en la recuperación de la memoria revela que efectos electrofisiológicos sirven como marcadores de los procesos de memoria. Esta revisión sistemática examina la literatura sobre las alteraciones en EEG en la supresión de la memoria, destacando sus resultados en indicadores electrofisiológicos. Se realizó una revisión sistemática entre enero y noviembre de 2017 utilizando las bases de datos PubMed, Embase y ScienceDirect. Como resultados, 12 estudios fueron elegibles para su inclusión. Existe evidencia de que una positividad parietal alrededor de 400-800ms después de la presentación de la señal es un marcador PRE de recolección consciente durante la recuperación de la memoria y una mayor deflexión de N2 durante la supresión de recuperación predijo un mayor olvido inducido por la supresión.

Psychosocial Profile of Juvenile Delinquents

Juvenile delinquency has become the most important subject matter of discussion in various fields. The disarray and destruction due to deviant behavior is assuming alarming proportions which is an awakening call to the society. The present study aims to assess various psychosocial factors which play a crucial part in the exhibition of delinquency behavior. Purposive sampling was implemented to collect data after obtaining informed consent from a sample of 30 juveniles (15 heinous and 15 non heinous offenders). Independent sample t test is used to see the difference of the different variables between heinous and non heinous offenses and product moment correlation is used to find the relationship between the different variables. Results indicated that resilience factors like emotional insight, empathy, and availability of the family, connectedness with family, negative cognition and social skills are found to have correlation with delinquent behavior. Temperamental characteristics like activation control, attention, inhibitory control and perceptual sensitivity is negatively correlated with the delinquent behavior while aggression is positively correlated. Significant difference is also found in these factors between heinous and no heinous offenses. It is also found that attachment with mother and peers play an important role in exhibiting delinquent behavior

Adaptações do cérebro durante uma tarefa de longa duração: Um estudo de Potencial Relacionado a Evento / Brain adaptations during a long-time task: An Event-Related Potential (ERP) study

Resumo O objetivo deste estudo é investigar o efeito da demanda cognitiva prolongada na modulação do Potencial Relacionado a Evento (ERP) em um paradigma de controle inibitório. Os dados foram coletados em 19 voluntários destros, com a média de idade de 21,21 (±1,77) anos, que realizaram o paradigma do Go/NoGo durante 50 minutos, com gravação sincronizada do eletroencefalograma para obtenção dos ERPs. O efeito do tempo de realização da tarefa provocou alterações significativas nas variáveis subjetivas, de desempenho cognitivo e nas amplitudes máximas dos componentes N2 e P3. Nossos resultados sugerem que quando nosso cérebro está submetido a demandas cognitivas extensas, ocorrem adaptações para a manutenção do desempenho comportamental através da estratégia de realocação de recursos energéticos.

Abstract The aim of this study is to investigate the effect of prolonged cognitive demand in Event Related Potential (ERP) modulation in inhibitory control paradigm. Data were collected in 19 right-handed volunteers with mean age of 21.21 (±1,77) years who performed the Go/NoGo paradigm for 50 minutes, with synchronized electroencephalogram recording to obtain the ERPs. The time on task effect induced significant changes in subjective variable, cognitive performance and maximum amplitudes of the N2 and P3 component. Our results suggest that when our brain is subjected to extensive cognitive demands, there are adaptations to maintain the behavioral performance through strategy reallocation of energy resources.

The fMRI study of brain inhibitory control function difference between DRD2 gene subtype of heroin addicts / 实用放射学杂志

Objective To explore the difference in inhibitory control ability between DRD2 gene subtype of heroin addicts with fMRI.Methods Thirty-seven heroin-dependent patients were divided into DRD2 Taq IA+ group (A+,22)and matched DRD2 Taq IA-group (A-,15).Functional MRI was performed in all patients while they were executing an event-related go/nogo task at 3.0T MR scanner.The differences of brain activated images and behavioral data between the two groups were analyzed with SPM8 and SPSS1 6.0 software,respectively.Results There were no significant differences in reaction time,accuracy and false alarm rates between the two groups (P>0.05).Compared with A-group,weaker activation in the medial prefrontal cortex,dorsal anterior cingulate,middle cingulate,supplementary motor area,temporal lobe,fusiform gyrus,lingual gyrus,hippocampus and parahippocampal gyrus in response inhibition condition were demonstrated in A+ group (voxel number>228,t=2.11,Alphasim correction,P<0.05).There was no corrlation between the intensity within the activated brain regions and the usage of heroin,morphine urine test positive number(P>0.05).Conclusion DRD2 Taq IA+ group exist deactivation of the brain area on memory,inhibitory control,visual spatial attention. It may be the neural basis that contribute to easy addiction and relapse for A+ carriers.

Influencia del riesgo social en la teoría de la mente y funciones ejecutivas de adolescentes colombianos / Influence of Social Risk in the Theory of Mind and Executive Functions of Colombian Teenagers

Resumen El objetivo del presente estudio fue determinar la influencia del riesgo social en el rendimiento, en tareas de Funciones Ejecutivas (FE) y Teoría de la Mente (ToM) en adolescentes colombianos. Participaron 78 adolescentes (41 en riesgo social y 37 controles) entre los 13 y 16 años de edad seleccionados a través de un muestreo intencional. Se administró el Test de Palabras y Colores de Stroop, el Test de la Pirámide de México y el Test de Falso Paso para evaluar control inhibitorio, planificación y ToM, respectivamente. A pesar de que no se encontraron diferencias significativas en las FE de control inhibitorio y planificación, se encontraron diferencias en el desempeño en algunas dimensiones de la prueba de ToM. Adicionalmente, mientras que al interior del grupo sin riesgo social se observó una relación entre la ToM y las FE evaluadas, al interior del grupo en riesgo social estos procesos no estuvieron relacionados. Se concluye que un entorno de riesgo social parece no afectar las FE de control inhibitorio y planificación o la habilidad para detectar comportamientos inapropiados, pero sí la habilidad para realizar inferencias acerca de los estados mentales de los otros. Asimismo, un entorno de riesgo social es un factor ambiental que parece disociar el proceso de desarrollo de la cognición social y de los procesos ejecutivos en adolescentes, desarrollo que debería darse de manera paralela.

Abstract The objective of the present study was to determine the influence of social risk in the performance of Colombian adolescents in ToM and EF tasks. The participants were 78 adolescents (41 in social risk and 37 controls) between 13 and 16 years of age. The Stroop Test, the Pyramid of Mexico subtest and the Faux Pas Recognition Test where used to assess inhibitory Control, Planning and ToM in the participants, respectively. Although no significant differences were found in the executive functions of Inhibiting Control and Planning, some differences were found in the performance of the ToM test. Additionally, whereas in the control group a relationship between ToM and executive functions was observed, in the at social risk group these processes were not related. These findings reveal that being at social risk does not affect the Executive Functions of Control and Planning but it does have an effect in the ability to make inferences about the mental states of others. Moreover, being at social risk can be an environmental factor that can dissociate the development process of social cognition and executive functions, which are supposed to occur parallelly.

Evaluación Neuropsicológica Del Control Inhibitorio Y El Control De La Interferencia: Validación De Tareas Experimentales En El Contexto Ecuatoriano / Neuropsychological Evaluation Of Inhibitory Control And Interference Control: Validation Of Experimental Tasks In The Ecuadorian Context

RESUMEN En este artículo se reporta un estudio en el cual se adaptó y validó tres tareas experimentales (SIMON, Go/No-Go y Stroop Victoria) para valorar el control inhibitorio y control de la interferencia en una muestra de estudiantes ecuatorianos. La muestra estuvo conformada por 100 estudiantes entre 6 y 15 años de edad (M=10,13 años, DE= 2,48) pertenecientes al sistema educativo público de Ecuador. El proceso que se siguió en la adaptación y validación fue mediante la traducción lingüística de los experimentos, posteriormente se siguió un juicio de expertos y un estudio piloto. En los resultados se encontró que no existen diferencias estadísticamente significativas en las medidas que valoran el control inhibitorio y de la interferencia considerando como factores de comparación las variables sociodemográficas de los participantes. En el análisis correlacional se encontró una asociación estadísticamente significativa entre las mediciones de los experimentos. Se concluye analizando las asociaciones encontradas y subrayando la necesidad de continuar aportando evidencia en la línea de investigación de adaptación y validación de reactivos de uso en la evaluación neuropsicológica.

ABSTRACT In this article we report a study in which three experimental tasks (SIMON, Go / No-Go and Stroop Victoria) were adapted and validated to evaluate the inhibitory control and interference control in a sample of Ecuadorian students. The sample consisted of 100 students between 6 and 15 years old (M = 10.13 years, SD = 2.48) belonging to the public education system of Ecuador. The process followed in the adaptation and validation was through the linguistic translation of the experiments, followed by an expert judgment and a pilot study. In the results it was found that there are no statistically significant differences in the measures that assess the inhibitory control and the interference considering the sociodemographic variables of the participants as comparison factors. In the correlation analysis we found a statistically significant association between the measurements of the experiments. We conclude by analyzing the associations found and underlining the need to continue providing evidence in the research line of adaptation and validation of test for using in neuropsychological evaluation.