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Neurocognitive Mechanisms of Attention Distortion with Social Anxiety: A Flanker Problem Experiment

机译:具有社会焦虑的关注扭曲的神经认知机制:侧翼问题实验

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The aim of the presented research is to study the neurocognitive mechanisms of attention distortion with social anxiety (SA). An experiment using the modified Eriksen flanker task is implemented. Facial expressions (congruent and incongruent stimulus sequences) are used as stimuli. When solving a problem, the SA severity, errors, or correct decisions, and the sequence of stimuli vary. The integrative platform "EEG + eye tracking" is used; it has the ability to synchronously register parameters and analyze activity in dynamics. During the experiment, we recorded the stimulus, time, and correctness of the response, parameters of oculomotor activity, as well as the EEG (error-related negativity, ERN). When low and high levels of SA are compared, we find a greater deviation from the target priority for the distractors, an increase in solution time, and a decreasing number of correct decisions (especially under incongruent conditions), as well as a greater frequency and duration of fixations, a total number and amplitude of saccades, an increased target detection period. In the case of erroneous decisions, the ERN component is excessively expressed in subjects with SA. The indicators found are the measures of the neurocognitive mechanisms of SA that characterize the features of distortion of attention and information processing in the context of evaluating target activities (threat monitoring, self-focusing, decreased productivity, multitasking).
机译:本研究的目的是研究与社交焦虑(SA)的关注扭曲的神经认知机制。使用改进的Eriksen Flanker任务的实验是实现的。面部表情(全体和不一致的刺激序列)用作刺激。解决问题时,SA严重程度,错误或正确的决策以及刺激序列变化。使用综合平台“EEG +眼跟踪”;它有能力同步注册参数并分析动态中的活动。在实验期间,我们记录了响应的刺激,时间和正确性,动脉瘤活动的参数,以及脑电图(误差相关的消极性,ERN)。当比较低和高水平的SA时,我们发现与患者的目标优先级的偏差更大,解决方案时间增加,以及较大的决定数量(特别是在不一致条件下),以及更大的频率和更大的频率固定持续时间,扫视的总数和幅度,目标检测周期增加。在错误决策的情况下,ERN组件在具有SA的受试者中过度表达。发现的指标是SA的神经认知机制的措施,其特征在于在评估目标活动的背景下的关注和信息处理的特征(威胁监测,自我聚焦,生产率降低,多任务处理)。

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