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Inhibition of return in cue–target and target–target tasks

机译：抑制提示目标任务和目标目标任务的回报

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摘要

Inhibition of return (IOR), the term given for the slowing of a response to a target that appeared at the same location as a previously presented stimulus, has been studied with both target–target (TT; participants respond to each successive event) and cue–target (CT; participants only respond to the second of two events) tasks. Although both tasks have been used to examine the processes and characteristics of IOR, few studies have been conducted to understand if there are any differences in the processes that underlie the IOR that results from ignoring (CT paradigm) or responding to (TT paradigm) the first stimulus. The purpose of the present study was to examine the notion that IOR found in TT tasks represents “true” IOR whereas IOR found in CT tasks consist of both “true” IOR and response inhibition (Coward et al. in Exp Brain Res 155:124–128, 2004). Consistent with the pattern of effects found by Coward et al. (Exp Brain Res 155:124–128, 2004), IOR was larger in the CT task than in the TT task when a single detection response was required (Experiment 1). However, when participants completed one of two spatially-directed responses (rapid aiming movement to the location of the target stimulus), IOR effects from the CT and TT tasks were equal in magnitude (Experiment 2). Rather than CT tasks having an additional response inhibition component, these results suggest that TT tasks may show less of an inhibitory effect because of a facilitatory response repetition effect.
机译：抑制回报（IOR）是减慢对与先前提出的刺激出现在同一位置的目标反应的术语，已经研究了目标-目标（TT；参与者对每个连续事件的反应）和提示目标（CT；参与者仅响应两个事件中的第二个）任务。尽管这两个任务都已用于检查IOR的过程和特性，但很少进行研究来了解在忽略（CT范例）或响应（TT范例）导致IOR的过程中是否存在任何差异。第一刺激。本研究的目的是检验在TT任务中发现的IOR代表“真实” IOR的概念，而在CT任务中发现的IOR则包括“真实” IOR和响应抑制（Coward等人，Exp Brain Res 155：124）。 –128，2004年。与Coward等人发现的效应模式一致。 （Exp Brain Res 155：124–128，2004），当需要单个检测响应时，CT任务中的IOR比TT任务中的IOR大（实验1）。但是，当参与者完成两个空间定向响应（快速将目标移动到目标刺激的位置）之一时，来自CT和TT任务的IOR效果在大小上是相等的（实验2）。这些结果表明，CT任务不是具有额外的反应抑制成分的CT任务，而是具有促进反应的重复效应，因此其抑制作用较小。

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