Abstract:
:One cannot detect a white disk located at least 15 degrees from fixation in an intersection of gray alleys that define a grid of black squares. A psychophysical examination of the anatomical locus of this "blanking phenomenon" is reported here. Stimuli were presented dichoptically; disk threshold was measured with fixed-step staircases. Three dichoptic experiments were developed employing different stimuli. Simple dichoptic presentations implied both pre- and post-fusion contributions. One follow-up experiment verified pre-fusion contributions, while another implicated post-fusion mechanisms. These results indicate that the blanking phenomenon has contributions from multiple sites in the visual system.
journal_name
Vision Resjournal_title
Vision researchauthors
McAnany JJ,Levine MWdoi
10.1016/j.visres.2004.08.003subject
Has Abstractpub_date
2005-01-01 00:00:00pages
193-203issue
2eissn
0042-6989issn
1878-5646pii
S0042-6989(04)00399-2journal_volume
45pub_type
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