A reaction-time adjusted PSI method for estimating performance in the stop-signal task

被引:2
|
作者
Weise, Lorenz [1 ]
Boecker, Maren [1 ]
Gauggel, Siegfried [1 ]
Falkenburger, Bjoern [2 ,3 ]
Drueke, Barbara [1 ]
机构
[1] Rhein Westfal TH Aachen, Dept Med Psychol & Med Sociol, Aachen, Germany
[2] Rhein Westfal TH Aachen, Dept Neurol, Aachen, Germany
[3] Rhein Westfal TH Aachen, Forschungszentrum Julich GmbH, JARA BRAIN Inst Mol Neurosci & Neuroimaging, Aachen, Germany
来源
PLOS ONE | 2018年 / 13卷 / 12期
关键词
RESPONSE-INHIBITION;
D O I
10.1371/journal.pone.0210065
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
A central experimental task in executive control research is the Stop-signal task, which allows measuring the ability to inhibit dominant responses. A crucial aspect of this task consists of varying the delay between the Go- and Stop-signal. Since the time necessary to administer the task can be long, a method of optimal delay choice was recently proposed: the PSI method. In a behavioral experiment, we show a variant of this method, the PSI marginal method, to be unable to deal with the Go-response slowing often observed in the Stop-signal task. We propose the PSI adjusted method, which is able to deal with this response slowing by correcting the estimation process for the current reaction time. In several sets of behavioral simulations, as well as another behavioral experiment, we document and compare the statistical properties of the PSI marginal method, our PSI adjusted method, and the traditional staircase method, both when reaction times are constant and when they are linearly increasing. The results show the PSI adjusted method's performance to be comparable to the PSI marginal method in the case of constant Go-response times, and to outperform the PSI marginal method as well as the staircase methods when there is response slowing. The PSI adjusted method thus offers the possibility of efficient estimation of Stop-signal reaction times in the face of response slowing.
引用
收藏
页数:28
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