Impulse Control and ERP Characteristics of Patients with Mental Disorder Caused by Traumatic Brain Injury / 法医学杂志

Objective To explore the impulse control and event-related potential （ERP） characteristics of patients with mental disorders caused by traumatic brain injury （TBI） in forensic psychiatry identification and to provide objective auxiliary indicators for forensic psychiatry identification. Methods Thirty patients （TBI group） with mental disorders caused by traumatic brain injury, who were identified as mild psychiatric impairment by judicial psychiatry, including 24 males and 6 females, as well as the thirty people in the control group participated in the study. All the participants completed Barratt Impulsiveness Scale-11 （BIS-11） and ERP induced by Go/NoGo tasks. BIS-11 and ERP data were collected and analyzed. Results The results of the BIS-11 showed that the total score and subscale scores of the TBI group were higher compared to the control group （P<0.05）. Moreover, the TBI group exhibited significantly lower NoGo-N2 amplitude and lower NoGo-P3 amplitude than the control group. The NoGo-N2 amplitude was larger than the Go-N2 amplitude, and the NoGo-P3 amplitude was larger than the Go-P3 amplitude in both groups （P<0.05）. Conclusion Traumatic brain injury could impair impulse control of mild psychiatric impairment patients, and the amplitudes of NoGo-N2 and NoGo-P3 could be important parameters to evaluate the impulse control of patients with mental disorders caused by traumatic brain injury.

Análise fatorial confirmatória da versão reduzida da Escala de Impulsividade Barratt para Adolescentes / Confirmatory factor analysis of the reduced version of the Barratt Impulsivity Scale for adolescents / Análisis factorial confirmatorio de la versión reducida de la escala de impulsividad Barratt para adolescentes

O objetivo geral foi avaliar a adequação da estrutura fatorial da versão brasileira da Barratt (BIS-11) para adolescentes de ambos os sexos e sugerir versão abreviada da escala com melhores propriedades psicométricas. Foram avaliados 304 adolescentes com idades entre 13 e 18 anos da cidade de Porto Alegre. Foi usada Escala de Impulsividade Barratt. Foi possível observar baixo índice de ajuste do modelo brasileiro em comparação com os demais e bom índice do modelo português. Porém, foi proposto uma versão reduzida da escala, totalizando 12 itens. Esta versão apresentou índices de ajuste adequados. O alfa de Cronbach corrigido obteve valor de 0,974. Este estudo apresenta boa análise fatorial que identifica três fatores da escala original para a população de adolescentes de ambos os sexos em versão abreviada da escala. (AU)

The general aim was to evaluate the adequacy of the factorial structure of the Brazilian version of the Barratt Impulsivity Scale (BIS-11) for adolescents of both sexes and to suggest an abridged version of the scale with better psychometric properties. A total of 304 adolescents aged 13 to 18 years of the city of Porto Alegre were evaluated. The Barratt Impulsivity Scale was used. It was possible to observe a low fit index for the Brazilian model compared to the other indices and a good index for the Portuguese model. However, a reduced version of the scale was proposed, totaling 12 items. This version had adequate fit indices. The corrected Cronbach's alpha was 0.974. This study presents a good factorial analysis that identifies three factors of the original scale for the population of adolescents of both sexes in an abbreviated version of the scale. (AU)

El objetivo de la investigación fue evaluar la adecuación de la estructura factorial de la versión brasileña de Barratt (BIS-11) para adolescentes de ambos sexos y sugerir una versión abreviada de la escala con mejores propiedades psicométricas. Fueron evaluados 304 adolescentes con edades entre 13 y 18 años de la ciudad de Porto Alegre. Se utilizó la Escala de Impulsividad Barratt. Se observó que la tasa de ajuste bajo del modelo brasileño en comparación con los demás y buen índice del modelo portugués. Sin embargo, se propuso una versión reducida de la escala, totalizando en 12 ítems. Esta versión presentó índices de ajuste adecuados. El alfa de Cronbach corregido obtuvo un valor de 0,974. Este estudio presenta un buen análisis factorial que identifica tres factores de la escala original para la población de adolescentes de ambos sexos en la versión abreviada de la escala. (AU)

Estudio de las propiedades psicométricas de la Escala Barratt de Impulsividad (BIS-11) en niños y adolescentes / Study of the psychometric properties of the Barratt Impulsiveness Scale (BIS-11) in children and adolescents

Resumen El objetivo de este estudio fue identificar y confirmar la estructura trifactorial de la Escala Barratt de Impulsividad (BIS-11) propuesta para adultos (Patton, Stanford y Barratt, 1995) en una muestra de 600 niños y adolescentes entre 9 y 17 años de edad (M = 12.9, DT = 2.3). Para el análisis factorial los datos fueron divididos aleatoriamente en dos. Con la primera submuestra se realizó el Análisis Factorial Exploratorio, en el que se identificaron tres dimensiones. Posteriormente, con la segunda submuestra se llevó a cabo el Análisis Factorial Confirmatorio. La solución factorial resultante de 19 ítems arroja adecuados indicadores de ajuste (CFI = .909, IFI = .912, RMSEA = .043 CI [.032 - .054], x2/gl = 1.561). El alfa Cronbach total ha sido a = .795. Las escalas obtienen coeficientes aceptables para estas edades, Impulsividad Atencional con a = .641, Impulsividad Motora a = .659 e Impulsividad no Planificadora a = .727.

Abstract The aim of this study was to identify and confirm the trifactorial structure of the Barratt Impulsiveness Scale (BIS-11) proposed for adults by Patton, Stanford and Barratt (1995) in a sample of children and adolescents. The sample consisted of 600 children between of 9 and 17 years old (M = 12.9, SD=2.3). For the factorial analysis the data were divided into two random samples. In the first subsample the Exploratory Factorial Analysis was performed, and three dimensions were identified. Subsequently, in the second subsample, Confirmatory Factor Analysis was performed. The factorial solution of 19 items showed adequate fit (CFI = .909, IFI = .912, RMSEA = .043 CI [.032 - .054], x2/gl = 1.561). The total Cronbach alpha was a = .795. Each scale has acceptable coefficients: Attentional Impulsiveness a = .641, Motor Impulsiveness a = .659 and Non-planning Impulsiveness a = .727.

Electro-acupuncture treatment for internet addiction: Evidence of normalization of impulse control disorder in adolescents / 中国结合医学杂志

<p><b>OBJECTIVE</b>To observe the impacts of electro-acupuncture (EA) and psychological intervention (PI) on impulsive behavior among internet addiction (IA) adolescents.</p><p><b>METHODS</b>Thirty-two IA adolescents were allocated to either EA (16 cases) or PI (16 cases) group by a randomized digital table. Subjects in the EA group received EA treatment and subjects in the PI group received cognition and behavior therapy. All adolescents underwent 45-d intervention. Sixteen healthy volunteers were recruited into a control group. Barratt Impulsiveness Scale (BIS-11) scores, Young's Internet Addiction Test (IAT) as well as the ratio of brain N-acetyl aspartate (NAA) to creatine (NAA/Cr) and choline (Cho) to creatine (Cho/Cr) were recorded by magnetic resonance spectroscopy before and after intervention respectively.</p><p><b>RESULTS</b>The IAT scores and BIS-11 total scores in both EA and PI group were remarkably decreased after treatment (P<0.05), while EA group showed more significant decrease in certain BIS-11 sub-factors (P<0.05). Both NAA/Cr and Cho/Cr were significantly improved in EA group after treatment (P<0.05); however, there were no significant changes of NAA/Cr or Cho/Cr in PI group after treatment (P>0.05).</p><p><b>CONCLUSIONS</b>Both EA and PI had significantly positive effect on IA adolescents, especially in the aspects of psychological experiences and behavioral expressions, EA might have an advantage over PI in terms of impulsivity control and brain neuron protection. The mechanism underlying this advantage might be related to the increased NAA and Cho levels in prefrontal and anterior cingulate cortices.</p>

The impairment of impulsiveness in patients of obsessive-compulsive disorder / 中华行为医学与脑科学杂志

Objective To investigate the difference of impulsiveness between patients of obsessivecompulsive disorder(OCD) and healthy controls.Methods Seventy-one patients who met the DSM-Ⅳ criteria for OCD,and sixty-five healthy controls were recruited.Impulsiveness and the severity of symptom were assessed with Barratt Impulsivity Scale (BIS-11) and Yale-Brown Obsessive Compulsive Scale (Y-BOCS) before and the end of 16th week treatment.Results Before treatment,attentional impulsivity scores(14(12,16)) and non-planning impulsivity scores (26 (23,28)) were significandy higher (all P＜ 0.01) in OCD patients compared with controls (12 (11,13),23 (20.5,26)).Mter treament,the reduction rate of attentional impulsivity was positively correlated with the reduction rate of Y-BOCS (r=0.443,P=0.018).Logistic regression analysis reported that with the total scores of BIS-11 increased,the effect of treatment was improved (β=-0.149,P=0.002).Conclusion Increased attentional and non-planning impulsivity are found in OCD.As the improvement of symptom,the scores of attentional impulsivity are also decreased.The high total scores of BIS-11 are correlated with the efficacy of treatment.

A study on the reliability and validity of the Chinese revised version of Barratt Impulsiveness Scale in Chinese college student with a web-based survey / 预防医学

Objective TheaimofthestudywastoexaminethepsychometricpropertiesoftheChineserevisedversionof BarrattImpulsivenessScale11th(BIS-11)inChinesecollegestudentwithaweb-basedsurvey.Methods Atotalof 2 295 college students were enrolled in the survey,and were divided into two groups.The first group was used for item and factoranalysis,andthesecondgroupwasusedforconfirmatoryfactorsanalysis.Results ItemanalysisindicatedthatBIS-11 had satisfactory item discrimination,except the item 29.Three -factor model of BIS -11 was well documented with exploratory factor analysis (explained 45.526%of total variance)and confirmatory factor analysis (GFI,AGFI,TLI,CFI, RMSEA was 0.872,0.851,0.853,0.864,0.064,respectively).The internal consistency of the total scale and the three subscales using coefficient alpha was in the range of 0.833-0.913.The split-half reliability of the total scale and the three subscales using Spearman-Brown Coefficient was in the range of 0.827-0.907.Furthermore,the female college students in the present study had higher scores on the total scale,cognitive (attention)impulsiveness factor,and motor impulsiveness factor than the male college student (P <0.01 ).The individuals with GHQ -12 (the twelve -item General Health Questionnaire)screen-positive had higher scores on the total scale and the three factors than the subjects with GHQ-12 screen-negative(P<0.01).Conclusion TheresultsofpresentstudysuggestedthattheChineserevisedversionofthe Barratt Impulsiveness Scale 1 1 th could be used as a tool of impulsiveness assessment in web-based survey.

Revisión de las características psicométricas de la escala Barratt de impulsividad (BIS) a través de su historia: desde sus orígenes hasta la actualidad / Review of the psychometric characteristics of the Barratt Impulsiveness Scale (bis) through its history: From the beginning until now

Este artículo hace una revision de la evolución histórica de la escala Barratt de impulsividad (bis) desde sus inicios. En este sentido, se analiza la estructura factorial reportada en los estúdios más importantes, tanto a nivel exploratório como confirmatorio. De la misma forma, se revisan las confiabilidades reportadas, en especial para cada una de las escalas encontradas, y se hacen algunas propuestas para mejorar, en el futuro, las propiedades psicométricas del instrumento.

This article reviews the historical evolution of the Barratt Impulsiveness Scale (bis). Reliability and factorial structure is analyzed in the most important studies since its creation to the present. Some proposals are made to improve the psychometric properties of this instrument.

The Study on Reliability and Validity of Korean Version of the Barratt Impulsiveness Scale-11-Revised in Nonclinical Adult Subjects / 신경정신의학

OBJECTIVES: This study was conducted in order to determine the validity and reliability of the Korean version of the Barratt Impulsiveness Scale-11-Revised (K-BIS-11-R) in Nonclinical Adult Subjects. METHODS: The K-BIS-11-R was tested in non-clinical (n=270) native Korean-speakers. Internal consistency reliability was calculated using Cronbach's alpha and test-retest reliability was measured using Pearson correlations. To see external validity, we performed confirmatory factor analysis for determination of whether the three-factor model, proposed by the previous report, fit the data. RESULTS: According to the results, the K-BIS-11-R had an acceptable test-retest reliability and internal consistency reliability. In addition, the K-BIS-11-R total score and second-order subscale score showed significant correlation with Conners' Adult attention deficit/hyperactivity disorder Rating Scale-Korean and Buss & Durkee Hostility Inventory. In addition, no significant difference was observed between the K-BIS-11-R total score and demographic variables. Thus, the K-BIS-11-R total score was transformed to standard score. CONCLUSION: K-BIS-11-R is a reliable and valid measure and has possible utility for assessment of impulsiveness in nonclinical adult subjects. Further research is needed in order to determine the cutoff score for administration of K-BIS-11-R to clinical adult subjects.