Amount vs contrast of masking-figure contour in visual backward masking
نویسندگان
چکیده
منابع مشابه
A model of visual backward masking.
When two successive stimuli are presented within 0-200 ms intervals, the recognition of the first stimulus (the target) can be impaired by the second (the mask). This backward masking phenomenon has a form called metacontrast masking where the target and the mask are in close spatial proximity but not overlapping. In that case, the masking effect is strongest for interval of 60-100 ms. To under...
متن کاملSpatial processing and visual backward masking
Most theories of visual masking focus prima-rily on the temporal aspects of visual information processing, strongly neglecting spatial factors. In recent years, however, we have shown that this position is not tenable. Spatial aspects cannot be neglected in metacontrast, pattern and un-masking. Here, we review these results.
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Perceptual facilitation in detecting low-contrast Gabor patches (GPs) is induced by collinearly oriented high-contrast flankers. Our recent Visual Evoked Potentials (VEPs) study provided new physiological evidence for these collinear interactions, reflected by nonlinear modulation of multiple waveform components and frequencies [Sterkin, A., Yehezkel, O., Bonneh, Y. S., Norcia, A., & Polat, U. ...
متن کاملModeling spatial and temporal aspects of visual backward masking.
Visual backward masking is a versatile tool for understanding principles and limitations of visual information processing in the human brain. However, the mechanisms underlying masking are still poorly understood. In the current contribution, the authors show that a structurally simple mathematical model can explain many spatial and temporal effects in visual masking, such as spatial layout eff...
متن کاملThe neurophysiology of backward visual masking: information analysis.
Backward masking can potentially provide evidence of the time needed for visual processing, a fundamental constraint that must be incorporated into computational models of vision. Although backward masking has been extensively used psychophysically, there is little direct evidence for the effects of visual masking on neuronal responses. To investigate the effects of a backward masking paradigm ...
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ژورنال
عنوان ژورنال: Psychonomic Science
سال: 1972
ISSN: 0033-3131
DOI: 10.3758/bf03328899