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A Causal Role for the Cortical Frontal Eye Fields in Microsaccade Deployment
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نویسنده
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peel t.r. ,hafed z.m. ,dash s. ,lomber s.g. ,corneil b.d.
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منبع
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plos biology - 2016 - دوره : 14 - شماره : 8
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چکیده
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Microsaccades aid vision by helping to strategically sample visual scenes. despite the importance of these small eye movements,no cortical area has ever been implicated in their generation. here,we used unilateral and bilateral reversible inactivation of the frontal eye fields (fef) to identify a cortical drive for microsaccades. unexpectedly,fef inactivation altered microsaccade metrics and kinematics. such inactivation also impaired microsaccade deployment following peripheral cue onset,regardless of cue side or inactivation configuration. our results demonstrate that the fef provides critical top-down drive for microsaccade generation,particularly during the recovery of microsaccades after disruption by sensory transients. our results constitute the first direct evidence,to our knowledge,for the contribution of any cortical area to microsaccade generation,and they provide a possible substrate for how cognitive processes can influence the strategic deployment of microsaccades. © 2016 peel et al.
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آدرس
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the brain and mind institute,university of western ontario,london,on,canada,graduate program in neuroscience,university of western ontario,london,on, Canada, physiology of active vision laboratory,werner reichardt centre for integrative neuroscience,tuebingen university,tuebingen, Germany, the brain and mind institute,university of western ontario,london,on,canada,department of physiology & pharmacology,university of western ontario,london,on, Canada, the brain and mind institute,university of western ontario,london,on,canada,department of physiology & pharmacology,university of western ontario,london,on,canada,department of psychology,university of western ontario,london,on, Canada, the brain and mind institute,university of western ontario,london,on,canada,department of physiology & pharmacology,university of western ontario,london,on,canada,department of psychology,university of western ontario,london,on,canada,robarts research institute,london,on, Canada
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Authors
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