Smooth pursuit under stimulus-response uncertainty does not follow Hick’s law
Smooth pursuit; Hick’s law; Stimulus – response uncertainty
Cognitive Brain Research
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).
(2004). Smooth pursuit under stimulus-response uncertainty does not follow Hick’s law. Cognitive Brain Research, 19, 100-102.
Available at: http://nsuworks.nova.edu/cps_facarticles/1027