The behavioural and neurophysiological modulation of microsaccades in monkeys

Bell, Andrew H.; Queen’s University, Fecteau, Jillian H.; Queen’s University, Corneil, Brian D.; University Of Western Ontario, Munoz, Douglas P.; Queen’s University & Brien, Donald C.; Queen’s University
Systematic modulations of microsaccades have been observed in humans during covert orienting. We show here that monkeys are a suitable model for studying the neurophysiology governing these modulations of microsaccades. Using various cue-target saccade tasks, we observed the effects of visual and auditory cues on microsaccades in monkeys. As in human studies, following visual cues there was an early bias in cue-congruent microsaccades followed by a later bias in cue-incongruent microsaccades. Following auditory cues there...
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