title: Lateral suppression of mesopic rod and cone flicker detection.
abstract: This study investigated the mechanisms of flicker detection suppression by measuring mesopic rod and cone critical flicker frequencies (CFFs) at different center and surround illuminance levels. Stimuli were generated with a four-primary photostimulator that provided independent control of rod and cone excitations. The results showed that dim surrounds ≤0.2 Td suppressed cone-mediated CFFs at ≥20 Td but not rod-mediated CFFs. These results can be understood in terms of peak amplitudes of photoreceptor impulse response functions under different stimulation conditions.
authors.affiliation: Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, 1905 W. Taylor Street, Room 149, Chicago, Illinois 60612, USA. dcao98@uic.edu
authors.forename: Dingcai
authors.initials: D
authors.lastname: Cao
authors.forename: Yolanda H
authors.initials: YH
authors.lastname: Lu
mesh_terms: D000328:Adult; D005260:Female; D005425:Flicker Fusion / Q000502:physiology* / Q000528:radiation effects; D006801:Humans; D008027:Light; D008297:Male; D055255:Mesopic Vision / Q000502:physiology* / Q000528:radiation effects; D010775:Photic Stimulation; D017949:Retinal Cone Photoreceptor Cells / Q000166:cytology* / Q000528:radiation effects; D017948:Retinal Rod Photoreceptor Cells / Q000166:cytology* / Q000528:radiation effects; D013997:Time Factors; D055815:Young Adult