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视觉搜索中的目标切换成本在目标模板的准备激活过程中产生

Anna Grubert¹, Ziyi Wang¹, Martin Eimer²

¹Department of Psychology, Durham University, Durham, UK.

Psychophysiology

|July 25, 2024

概括

在视觉搜索中切换目标身份会延迟准备模板的激活,增加任务准备时间并导致性能成本. 这影响了注意力指导.

科学领域:

认知心理学认知心理学
神经科学是一个神经科学.
视觉感知视觉感知视觉感知

背景情况:

任务切换研究表明,与刺激-响应映射变化相关的行为成本.
注意力模板通过表示目标定义特征来指导视觉搜索.

研究的目的:

调查切换目标定义特征如何影响视觉搜索中的注意力模板激活.
在目标切换过程中确定准备过程的时间动态.

主要方法:

参与者对颜色定义的目标进行视觉搜索,这些目标可预测地切换.
与事件相关的潜力 (ERP),特别是N2pc组件,使用探针来追踪注意力捕获被测量.
探测器刺激与当前或替代目标颜色相匹配.

主要成果:

与目标重复试验相比,在目标切换试验中观察到显著的绩效成本.
针对相关目标颜色的准备N2pc组件在重复试验中很早出现 (800毫秒前开始),但在交换机试验中被推迟到刚开始之前.
不相关的颜色探测器没有引起N2pc响应,表明没有模板惯性.

结论:

切换搜索目标身份延迟了注意力模板的准备激活.
模板激活的延迟会影响后续的注意力指导,从而导致转换成本.
任务准备时间课程差异是交换和重复试验之间的性能差异的基础.

关键词:

在 N2pcc 中注意力模板注意力模板与事件相关的潜力.选择性注意力选择性注意力任务切换任务切换视觉搜索视觉搜索视觉搜索

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