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008			220801b |||||||| |||| 00| 0 eng d
100			_aZhaoping, Li _950547
245			_aParallel Advantage: Further Evidence for Bottom-up Saliency Computation by Human Primary Visual Cortex/
260			_bsage _c2019
300			_aVol 51, Issue 1, 2022 : (60-69 p.)
520			_aFinding a target among uniformly oriented non-targets is typically faster when this target is perpendicular, rather than parallel, to the non-targets. The V1 Saliency Hypothesis (V1SH), that neurons in the primary visual cortex (V1) signal saliency for exogenous attentional attraction, predicts exactly the opposite in a special case: each target or non-target comprises two equally sized disks displaced from each other by 1.2 disk diameters center-to-center along a line defining its orientation. A target has two white or two black disks. Each non-target has one white disk and one black disk, and thus, unlike the target, activates V1 neurons less when its orientation is parallel rather than perpendicular to the neurons’ preferred orientations. When the target is parallel, rather than perpendicular, to the uniformly oriented non-targets, the target’s evoked V1 response escapes V1’s iso-orientation surround suppression, making the target more salient. I present behavioral observations confirming this prediction.
650			_aSaliency, _950548
650			_aprimary visual cortex, _950549
650			_aV1 saliency hypothesis, _950550
650			_avisual search _950551
773	0		_012374 _916462 _dSage, _tPerception _x1468-4233
856			_uhttps://doi.org/10.1177/03010066211062583
942			_2ddc _cART
999			_c12641 _d12641