Olho quieto e ansiedade no arremesso do Basquetebol: uma revisão de estado da arte / QUIET EYE AND ANXIETY AT THE BASKETBALL SHOT: a state-of-the-art review / OJO TRANQUILO Y ANSIEDAD EN EL TIRO DE BALONCESTO: una revisión de estado del arte

O arremesso do basquetebol depende do foco de atenção visual do atleta e relaciona-se ao Olho Quieto (OQ), que pode ser afetado pela ansiedade. Esta revisão buscou estabelecer o estado da arte na literatura sobre o OQ e a sua relação com a ansiedade, observando o seu impacto no desempenho de atletas no arremesso do basquetebol. As buscas foram realizadas nas bases de dados PubMed, PsycInfo, EBSCO, Scielo, Google Acadêmico, Periódicos CAPES e LILACS com os descritores "olho quieto, basquetebol e ansiedade", em português e inglês. Vinte e três documentos foram incluídos na análise. O OQ (fixação visual final com início durante a última etapa motora) caracteriza níveis de habilidade e desempenho. A busca revelou que a ansiedade influencia vários aspectos do arremesso do basquetebol, como a redução da duração do OQ

The basketball shot depends on the athlete's visual focus of attention so that it is related to the Quiet Eye (OQ) and can be affected by anxiety. This review sought to establish the state of the art in the literature on OQ and its relationship with anxiety, observing their impact on the performance of athletes in the basketball shot. Searches were performed in the databases PubMed, PsycInfo, EBSCO, Scielo, Google Acadêmico, Periódicos CAPES and LILACS with the descriptors "quiet eye, basketball and anxiety" in Portuguese and English. Twenty three documents were included in the analysis. The OQ (final visual fixation starting during the last motor phase) characterizes skill and performance levels. The search revealed that anxiety influences several aspects of the basketball shot, such as reducing the duration of the OQ

El tiro de baloncesto depende del foco de atención visual del atleta y está asociado con el Ojo Tranquilo (OT), que puede verse afectado por la ansiedad. Esta revisión buscó establecer el estado del arte en la literatura sobre OT y su relación con la ansiedad, observando su impacto en el desempeño de los atletas en el tiro de baloncesto. Las búsquedas se realizaron en las bases de datos PubMed, PsycInfo, EBSCO, Scielo, Google Acadêmico, Periódicos CAPES y LILACS, con los descriptores "ojo tranquilo, baloncesto y ansiedad", en portugués y en ingles. Veintitrés documentos fueron incluidos en el análisis. El OT (fijación visual final que comienza durante el último paso motor) caracteriza los niveles de habilidad y rendimiento. La búsqueda reveló que la ansiedad influye en varios aspectos del tiro de baloncesto, como la reducción de la duración del OT.

OLHO QUIETO E ANSIEDADE NO ARREMESSO DO BASQUETEBOL: uma revisão de estado da arte / QUIET EYE AND ANXIETY AT THE BASKETBALL SHOT: a state-of-the-art review / OJO TRANQUILO Y ANSIEDAD EN EL TIRO DE BALONCESTO: una revisión de estado del arte

O arremesso do basquetebol depende do foco de atenção visual do atleta e relaciona-se ao Olho Quieto (OQ), que pode ser afetado pela ansiedade. Esta revisão buscou estabelecer o estado da arte na literatura sobre o OQ e a sua relação com a ansiedade, observando o seu impacto no desempenho de atletas no arremesso do basquetebol. As buscas foram realizadas nas bases de dados PubMed, PsycInfo, EBSCO, Scielo, Google Acadêmico, Periódicos CAPES e LILACS com os descritores "olho quieto, basquetebol e ansiedade", em português e inglês. Vinte e três documentos foram incluídos na análise. O OQ (fixação visual final com início durante a última etapa motora) caracteriza níveis de habilidade e desempenho. A busca revelou que a ansiedade influencia vários aspectos do arremesso do basquetebol, como a redução da duração do OQ.

The basketball shot depends on the athlete's visual focus of attention so that it is related to the Quiet Eye (OQ) and can be affected by anxiety. This review sought to establish the state of the art in the literature on OQ and its relationship with anxiety, observing their impact on the performance of athletes in the basketball shot. Searches were performed in the databases PubMed, PsycInfo, EBSCO, Scielo, Google Acadêmico, Periódicos CAPES and LILACS with the descriptors "quiet eye, basketball and anxiety" in Portuguese and English. Twenty three documents were included in the analysis. The OQ (final visual fixation starting during the last motor phase) characterizes skill and performance levels. The search revealed that anxiety influences several aspects of the basketball shot, such as reducing the duration of the OQ.

El tiro de baloncesto depende del foco de atención visual del atleta y está asociado con el Ojo Tranquilo (OT), que puede verse afectado por la ansiedad. Esta revisión buscó establecer el estado del arte en la literatura sobre OT y su relación con la ansiedad, observando su impacto en el desempeño de los atletas en el tiro de baloncesto. Las búsquedas se realizaron en las bases de datos PubMed, PsycInfo, EBSCO, Scielo, Google Acadêmico, Periódicos CAPES y LILACS, con los descriptores "ojo tranquilo, baloncesto y ansiedad", en portugués y en ingles. Veintitrés documentos fueron incluidos en el análisis. El OT (fijación visual final que comienza durante el último paso motor) caracteriza los niveles de habilidad y rendimiento. La búsqueda reveló que la ansiedad influye en varios aspectos del tiro de baloncesto, como la reducción de la duración del OT.

Tareas de búsqueda visual: modelos, bases neurológicas, utilidad y prospectiva / Visual Search Tasks: Models, Neurological Bases, Usefulness and Prospective

Resumen Las tareas de búsqueda visual, fundamentadas en el reconocimiento de una forma, característica o estímulo visual en particular, han contribuido al desarrollo de la investigación en psicología. A partir de una revisión narrativa sobre las maneras de implementar dichas tareas, y haciendo un cotejo de su uso como elemento de instrumentalización de la investigación, se encuentra que diferentes modelos paradigmáticos convergen para el entendimiento de diversos procesos psicológicos. Se hace manifiesto que las tareas de búsqueda visual, no solo pueden implicar registros de actividad oculo-motora, sino que además operacionalizan sistemas de modulación de procesos atencionales y perceptuales, los cuales esencialmente están alineados con recompensas de tipo exógeno. Dichas recompensas, sumadas a procesos de adaptación al entorno, se integran para reivindicar la noción percepción para la acción.

Abstract Visual search tasks, that are based on the recognition of either a characteristic or an specific visual stimulus, have contributed to the development of psychological research. By doing a narrative review of the ways to carry out these tasks, and considering their usages as factors that instrumentalise research, several paradigms emerge so as to understand multiple psychological processes. It has been manifested that visual search tasks can imply eye-movement recordings as well as operationalizing systems connected to the modulation of both attentional and perceptual processes, which are essentially aligned with exogenous rewards. These rewards, added to some processes related to the adaptation to the environment, are incorporated in such a way that the notion of perception to action is enforced.

Mechanisms underlying visual object recognition in primates:research progress / 中国药理学与毒理学杂志

The capability of visual object recognition in primates is excellent, which is crucial to their survival. The investigation and analysis of the neural mechanisms underlying the visual object recognition in primates might bring dramatic breakthroughs to the brain-like machine vision.There are hierarchical structures, parallel pathways, feedback mechanisms, attention and visual search in the visual system of primates, which makes the visual object recognition in primates accurate, effective, flexible and energy-saving. The visual system of primates might achieve object detection through fast image segmentation by global precedence.The categorization manner of object encoding and storage makes possible the quick classification of detected objects.The potential target is selected by comparing the object and internal template of the target. The orienting between detected objects is guided by feature-based attention and spatial attention. The final step is the identification of the potential target. Previous studies of the visual object recognition in primates have made a series of progress.However, the detailed mechanisms of neuronal coding remain unclear and need further investigations.

Features of detection of facial expressions in college students with mobile phone dependence / 中国心理卫生杂志

Objective:To investigate the mobile phone dependence college students'features of detection of different facial expressions and give suggestion to future intervention for mobile phone dependence students.Methods:Totally 548 college students were assessed with the Mobile Phone Addiction Tendency Scale (MPATS).Two groups were screened by cluster analysis and high and low group standard,namely,mobile phone dependence group and control group,40 participants in each.A visual search task was used to examine the efficiency of facial processing.Participants searched displays of schematic faces and were required to determine whether the faces displayed were all the same or whether one was different.Results:When the expressions of the faces were the same,the main effect of number of faces was significant [F(1,468) =11.26,P ＜ 0.01],the detection of four faces was faster than that of eight faces [(1079.1 ± 187.9) msvs.(1139.2 ±202.7) ms].When the expressions of the faces were different,the main effect of expression types was statistically significant [F (1,312) =10.30,P ＜ 0.01],the detection of sad faces was faster than that of happy faces [(941.0 ± 168.5) ms vs.(997.8 ± 152.7) ms,P ＜ 0.01].The types of expressions had significant interaction with groups of participants [F (1,312) =16.55,P ＜ 0.01],mobile phone dependence group detected the sad faces significantly faster than the control group [(975.5 ± 112.4) ms vs.(906.4 ± 126.5) ms,P ＜0.05].Conclusion:The detection of sad faces is faster in those with mobile phone dependence than in controls.The detection of the sad and happy faces are serial search in both groups.

Characteristics of attention during visual search in adults with attention-deficit/hyperactivity disorder / 中国心理卫生杂志

Objective:To explore the characteristics of attention during visual search tasks in adults with attention-deficit/hyperactivity disorder (ADHD).Methods:Totally 45 adult patients with ADHD who met the Diagnostic and Statistical Manual of Mental Disorders,Fourth Edition (DSM-IV) and 44 healthy controls matched with age,gender and IQ were selected.The reaction time and accuracy rate of two groups were compared under visual search tasks of low and high visual working memory load.Results:The reaction time was longer in patients with ADHD than in the healthy controls in both low-load task [(823 ± 144) ms vs.(754 ± 123) ms,P ＜ 0.01] and highload task [(912 ± 163) ms vs.(851 ± 162) ms,P ＜ 0.01].Compared with the performance in low load task,the search reaction time was longer in high load task [ADHD group:(823 ± 144) ms vs.(912 ± 163) ms,P ＜ 0.01;control group:(754 ± 123) ms vs.(851 ± 162) ms,P ＜0.01] and the accuracy rate was lower during high load task than low load task[ADHD group:(95.9 ±4.3)％ vs.(91.2 ± 14.29)％;control group:(95.8 ± 4.2)％ vs.(94.4 ±4.9) ％,P ＜ 0.01] in both ADHD and control groups.Conclusion:The results suggest impairment in top-down attentional control in ADHD adults.When the visual working memory load is increasing,ADHD patients allocate more working memory resources on storing the target representation and less resources on visual attention,so the search efficiency may be influenced.

Differential neural activation for camouflage detection task in Field-Independent and Field-Dependent individuals: Evidence from fMRI.

It is not clearly known as to why some people identify camouflaged objects with ease compared with others. The literature suggests that Field-Independent individuals detect camouflaged object better than their Field-Dependent counterparts, without having evidence at the neural activation level. A paradigm was designed to obtain neural correlates of camouflage detection, with real-life photographs, using functional magnetic resonance imaging. Twenty-three healthy human subjects were stratified as Field-Independent (FI) and Field-Dependent (FD), with Witkin’s Embedded Figure Test. FIs performed better than FDs (marginal significance; p=0.054) during camouflage detection task. fMRI revealed differential activation pattern between FI and FD subjects for this task. One sample T-test showed greater activation in terms of cluster size in FDs, whereas FIs showed additional areas for the same task. On direct comparison of the two groups, FI subjects showed additional activation in parts of primary visual cortex, thalamus, cerebellum, inferior and middle frontal gyrus. Conversely, FDs showed greater activation in inferior frontal gyrus, precentral gyrus, putamen, caudate nucleus and superior parietal lobule as compared to FIs. The results give preliminary evidence to the differential neural activation underlying the variances in cognitive styles of the two groups.

The characteristic of top-down attentional control of children with acute stress disorder / 中华行为医学与脑科学杂志

Objective To investigate the characteristic of top-down attentional control of acute stress disorder children.Methods According to SCID-IV-TR,23 acute stress disorder children were chosen as the experinent group and 23 normal children were chosen as the control group.They were asked to perform a visual search task.Results (1) The reaction time of acute stress disorder children((1 253±158)ms) was significantly longer than normal children's((1 194± 146) ms) (P＜0.05).(2) The reaction time of valid condition((1 172± 144) ms)was significantly shorter than neutral condition ((1 229± 156) ms) and invalid condition ((1 269± 157) ms) (P＜0.05),there was no difference of reaction time between neutral condition((1 229± 156)ms) and invalid condition ((1 269±157)ms) (P＞0.05).(3) The reaction time of simple display condition((1 182±127)ms) was significantlv shorter than complex display condition ((1 264± 177)ms) (P＜0.01).Conclusion The performance of acute stress disorder children on top-down attentional control is less than normal children,the reason is that inhibiting capacity of acute stress disorder children is lower than normal children.It indicates that trauma event have negative influence on children's inhibiting capacity.

Complementary data on four methods for sampling free-living ticks in the Brazilian Pantanal / Dados complementares de quatro métodos para amostragem de carrapatos em vida livre no Pantanal brasileiro

In this study, four methods for sampling free-living ticks that are used in ecological and human tick-bite risk studies were evaluated. Cloth dragging, carbon dioxide traps and visual searches and inspection of plant litter on the ground were used in field and forest areas within the Brazilian Pantanal. Among the three tick species collected, Amblyomma sculptum predominated, followed by Amblyomma parvum and Amblyomma ovale. Dragging, a cheap and simple technique, yielded the highest numbers of ticks, particularly nymphs. The visual search detected a high number of adult ticks and provided information on tick questing height. Even though laborious, plant litter examination showed that large numbers of ticks may use this stratum. Carbon dioxide (CO2) traps are expensive and difficult to handle, but they are highly efficient for adult ticks, especially A. parvum. These data indicate that one method alone is incapable of providing a representative sample of the tick fauna in a particular area and that multiple techniques should be used for tick population studies.

Neste estudo, foram avaliados quatro métodos de amostragem de carrapatos em vida livre, usados em estudos ecológicos e avaliação do risco de picadas em humanos. Arraste de flanela, armadilhas de gás carbônico (CO2), busca visual e inspeção de serrapilheira foram aplicados em áreas campestres e florestais no Pantanal brasileiro. Dentre três espécies coletadas, a predominância foi de Amblyomma sculptum, seguida por Amblyomma parvum e Amblyomma ovale. O arraste, técnica simples e de baixo custo, resultou em maior número de carrapatos, particularmente de ninfas. A busca visual detectou alto número de carrapatos adultos e forneceu informações sobre altura de espera por hospedeiros. Apesar de trabalhoso, o exame da serrapilheira demonstrou que grande número de carrapatos pode utilizar esse estrato. Armadilhas de CO2 têm custo elevado e são difíceis de manusear, entretanto, são altamente eficientes para carrapatos adultos, em especial para A. parvum. Esses dados indicam que somente um método é incapaz de fornecer amostra representativa da ixodofauna em uma área particular e que, para estudos populacionais, técnicas múltiplas devem ser usadas.

The Associations between Visual Attention and Facial Expression Identification in Patients with Schizophrenia

OBJECTIVE: Visual search is an important attention process that precedes the information processing. Visual search also mediates the relationship between cognition function (attention) and social cognition (such as facial expression identification). However, the association between visual attention and social cognition in patients with schizophrenia remains unknown. The purposes of this study were to examine the differences in visual search performance and facial expression identification between patients with schizophrenia and normal controls, and to explore the relationship between visual search performance and facial expression identification in patients with schizophrenia. METHODS: Fourteen patients with schizophrenia (mean age=46.36+/-6.74) and 15 normal controls (mean age=40.87+/-9.33) participated this study. The visual search task, including feature search and conjunction search, and Japanese and Caucasian Facial Expression of Emotion were administered. RESULTS: Patients with schizophrenia had worse visual search performance both in feature search and conjunction search than normal controls, as well as had worse facial expression identification, especially in surprised and sadness. In addition, there were negative associations between visual search performance and facial expression identification in patients with schizophrenia, especially in surprised and sadness. However, this phenomenon was not showed in normal controls. CONCLUSION: Patients with schizophrenia who had visual search deficits had the impairment on facial expression identification. Increasing ability of visual search and facial expression identification may improve their social function and interpersonal relationship.

Atenção seletiva e informação de alto nível: modelos de seleção da informação em cenas naturais / Selective Attention and high-level information: model of information selection in natural scenes / Atención selectiva e informaciones de alto-nivel: modelos de selección de la información en escenas naturales

De modo geral, as investigações acerca da atenção seletiva apresentaram uma grande ênfase no estudo do processamento da informação visual de baixo nível e médio nível, fazendo uso, para tanto, de estímulos visuais relativamente simples (letras, números e formas geométricas). No entanto, tem crescido o número de estudos sobre a influência da informação de alto nível no processamento de cenas mais complexas e contextualizadas. A presente revisão tem como objetivo apresentar estudos relevantes sobre este tema e centra a sua discussão nos principais aspectos divergentes entre os modelos discretos do processamento atentivo, que preveem que a informação de alto-nível é processada em momentos tardios, e os modelos de processamento inicial, que preveem uma influência da informação de alto-nível em momentos precoces do processo de seleção da informação visual.

The researches about selective attention showed great emphasis on the study of low-level and mid-level processing of visual information, using relatively simple visual stimulus (letters, numbers and geometric shapes). However, there are an increasing number of studies about the influence of high-level information on the selection with complex scenes in natural contexts. The aim to present article is review the relevant studies about this area and highlight the differences between the discrete process model, which predicts that high-level information is processed in the late stages, and the early model that predicts an influence of high-level information on early visual selection.

En general, las investigaciones respecto a la atención selectiva presentaron gran énfasis en el estudio del procesamiento de la información visual de bajo nivel y medio nivel, haciendo uso, para tanto, de estímulos visuales relativamente simples (letras, números y formas geométricas). Sin embargo, ha crecido el número de estudios sobre la influencia de la información de alto nivel en el procesamiento de escenas más complejas y contextualizadas. La presente revisión tiene como objetivo presentar estudios relevantes sobre este tema y centrar su discusión en los principales aspectos divergentes entre los modelos discretos del procesamiento atentivo, que predicen que la información de alto nivel es procesada en momentos tardíos, y los modelos de procesamiento inicial, que predicen una influencia de la información de alto nivel en momentos precoces del proceso de selección de la información visual.

Neural mechanism of salient target processing in college students / 中华行为医学与脑科学杂志

ObjectiveTo investigate the neural mechanism of processing the salient target during the visual search task with spatiotemporal patterns of event-related potential(ERP).MethodsSixteen subjects were asked to judge the existence of a low or high salient target from 4 items,in which one distractor might be also salient or not.A two-way repeated-measure ANOVA was carried out for behavioral performance and ERP data( distractor saliency:YES,NO)*( target:none,low salient,high salient).ResultsSignificant interaction was found between target and distractor for the reaction time (F( 1.99,29.79) =21.56,P=0.00).For the low salient target,significant difference of reaction time was found between the YES (552.57 ± 82.32 ms) and NO (540.47 ± 75.68 ms)of distractor saliency( t (15) =- 2.489,P =0.025 ).However,such difference of reaction time was not significant for the high salient target.The statistical parametric mapping of F-value of ERP suggested the effect of the distractor saliency revealed in the right fronto-parietal-temporal areas related to stimulus novelty and the effect of the target saliency appeared in the parietal-occipital regions related to visual processing during the same stage ( 350 ～ 450ms ).The significant interaction occurred in the left temporal regions (450 ～ 600 ms ) related to stimulus familiarity and its classification.ConclusionDue to both mechanisms of the parallel processing for the target and the distractor during the perceptual stage and the effective classification of the familiar network within left hemisphere during the stage of pattern classification,the salient target can be processed quickly in spite of the interference from the salient distractor.

Seleção e análise de estímulos na tarefa de busca visual / Stimuli selection and analysis in the visual search task

A capacidade de processar simultaneamente vários estágios cognitivos ainda é motivo de discordância entre os modelos que tentam compreender o processamento da informação visual. Muitos resultados experimentais apontam basicamente duas maneiras possíveis de fluxo da informação entre estágios de processamento: uma discreta e outra contínua. No presente estudo, dois experimentos foram delineados para investigar se a informação inicialmente descartada, em um estágio pré-atentivo, pode influenciar o processamento atentivo da informação selecionada em uma tarefa de busca visual. De maneira geral, os resultados observados nestes experimentos mostram que os estímulos inicialmente descartados em um processo automático de seleção não interferem no processamento atentivo dos estímulos na tarefa de busca visual. Este resultado apóia os modelos que predizem uma seleção precoce dos elementos relevantes para o processamento atentivo e uma transmissão discreta da informação entre os estágios cognitivos de processamento.

The capacity of processing several cognitive stages simultaneously still generates a considerable disagreement among models that try to understand the processing of visual information. Many experimental results suggest two main possibilities for the information flow between information processing stages: a discrete or a continuous flow. Two experiments have in the present study to investigate were designed attentional processing whether the information at first discarded in a pre-attentive state can influence the of selected information in a visual search task. The results show that the stimuli initially discarded in an automatic process of selection do not interfere in the attention all processing of stimuli in a visual search. The results support the models that predict an early selection of the relevant stimuli and a discrete transmission of the information between the cognitive processing stages.