停止信号任务及其相关反应抑制理论模型综述

Stop Signal Task and the Related Models of Response Inhibiton

停止信号任务(Stop Signal Task)是研究反应抑制的常用实验范式之一,近年来被广泛运用于认知神经科学、心理病理学等研究领域。本文详细介绍了经典停止信号任务的实验过程、评价指标,重点阐述了与此任务相关的反应抑制理论模型——独立竞争模型,并提出该范式存在的问题,为停止信号任务范式的完善与推广提供了基础。

The paradigm named stop signal task is a very useful tool for the study of response inhibition. In recent years, it has been used to investigate response inhibition in cognitive neuroscience, psychopathology and other reseach fields. This article reviewed the stop signal task procedure and its evaluation index. Then we focused on the models of re- sponse inhibition in the stop signal task, especially the independent horse-race model. We finally discussed the shortcom- ing of the stop signal paradigm, which could be a steppingstone to the futher development of the stop signal task study.