Integration of competing saccade programs.
Reflexive responses are often in direct competition with voluntary control. We test two opposing explanations for how this competition is resolved with respect to eye movements. One states that the quickest activation wins. The other states that the strongest activation wins. We show that an eye movement is executed according to the strongest activation, with the competition being staged at a common subcortical site.
Hunt
Amelia R
AR
Department of Psychology, University of British Columbia, 2136 West Mall, Vancouver, BC, Canada V6T 1Z4. AmeliaHunt@imag.net
Olk
Bettina
B
von Mühlenen
Adrian
A
Kingstone
Alan
A
D006801:Humans; D008959:Models, Neurological; D012018:Reflex / Q000502:physiology*; D012438:Saccades / Q000502:physiology*; D014796:Visual Perception / Q000502:physiology*; D014836:Volition / Q000502:physiology*