College of Psychology: Faculty Articles

Title

Smooth pursuit under stimulus-response uncertainty does not follow Hick’s law

Document Type

Article

Publication Date

1-1-2004

Keywords

Smooth pursuit; Hick’s law; Stimulus – response uncertainty

Publication Title

Cognitive Brain Research

ISSN

0926-6410

Volume

19

Abstract

Simple reaction times (RTs) are typically faster than choice reaction times and increase with uncertainty according to Hick’s law. Here we show that smooth pursuit eye movement RTs show no effect of SR uncertainty while joystick tracking shows a step change between SRT and CRT, but no significant increases beyond two choices. The results suggest there is a benefit to pre-programming joystick tracking but not for smooth pursuit eye movements (SPEMs).

DOI

10.1016/j.cogbrainres.2003.11.006

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