Saccadic velocity and activation: development of a diagnostic tool for assessing energy regulation

摘要

The hypothesis was tested that peak velocity of saccadic eye movements in visual motor tasks varies with variables related to energy regulation. The hypothesis is based on the cognitive-energetical performance model of Sanders. An experi- mental paradigm was developed in which saccdic peak velocity of task-relevant eye movements is measured while a choice reaction task is carried out. Confounding factors of saccadic amplitude and movement direction were Controlled. The task was designed in such a way that in each trial subjects Performed a target saccade towards an imperative stimulus and a return saccade After the manual response back to the centre of the screen.