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VARIATION OF SACCADIC SUPPRESSION WITH TARGET ECCENTRICITY
Author(s) -
Osaka Naoyuki
Publication year - 1987
Publication title -
ophthalmic and physiological optics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.147
H-Index - 66
eISSN - 1475-1313
pISSN - 0275-5408
DOI - 10.1111/j.1475-1313.1987.tb00786.x
Subject(s) - saccadic masking , saccade , eccentricity (behavior) , fixation (population genetics) , eye movement , stimulus (psychology) , optics , optometry , audiology , ophthalmology , physics , psychology , medicine , cognitive psychology , social psychology , population , environmental health
— Two LEDs separated by 24° from each other were employed as saccadic fixation sources located on a circle about the centre of the saccade path. Either horizontal, vertical or oblique saccade paths were used and a brief test flash was presented at one of five retinal eccentricities during each saccade. The percentage of detected flashes was measured as a function of the location of the test stimulus and of its time delay with respect to the onset of the saccade. The results suggest that saccadic suppression is maximal at the fovea and is significantly decreased as retinal eccentricity increases. Based on a paper presented at the 2nd European Conference on Eye Movements held at Nottingham, U.K. and supported in part by the Japanese Ministry of Education Grant #56510078 and the Yoshida Memorial Foundation Grant 17–9.