کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
326789 542551 2012 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
How to measure post-error slowing: A confound and a simple solution
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات ریاضیات کاربردی
پیش نمایش صفحه اول مقاله
How to measure post-error slowing: A confound and a simple solution
چکیده انگلیسی

In many response time tasks, people slow down after they make an error. This phenomenon of post-error slowing (PES) is thought to reflect an increase in response caution, that is, a heightening of response thresholds in order to increase the probability of a correct response at the expense of response speed. In many empirical studies, PES is quantified as the difference in response time (RT) between post-error trials and post-correct trials. Here we demonstrate that this standard measurement method is prone to contamination by global fluctuations in performance over the course of an experiment. Diffusion model simulations show how global fluctuations in performance can cause either spurious detection of PES or masking of PES. Both confounds are highly undesirable and can be eliminated by a simple solution: quantify PES as the difference in RT between post-error trials and the associated pre-error trials. Experimental data are used as an empirical illustration.


► We show that the traditional measure of post-error slowing can be confounded.
► We illustrate this confound with both simulations and real data.
► We offer a solution that is both simple and adequate.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Mathematical Psychology - Volume 56, Issue 3, June 2012, Pages 208–216
نویسندگان
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