Interaction of forward and backward visual masking
نویسندگان
چکیده
منابع مشابه
Frequency discrimination in forward and backward masking.
Frequency difference limens for pure tones preceded by a forward masker or followed by a backward masker were obtained across a wide range of signal levels. Relkin and Doucet [Hear. Res. 55, 215-222 (1991)] have shown that at a masker-signal delay of 100 ms, the thresholds of high-SR (spontaneous rate) auditory-nerve fibers are recovered, while the low-SR fiber thresholds are not. Therefore, fo...
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.
متن کاملA 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 کاملForward and backward visual masking in unaffected siblings of schizophrenic patients.
BACKGROUND Visual masking tasks assess the earliest stages of visual processing. This study examined visual masking performance for forward and backward masking tasks in siblings of schizophrenic patients and healthy comparison subjects. METHODS A staircase method was used to ensure that unmasked target identification was equivalent across subjects to eliminate differences due to discriminati...
متن کاملVisual information processing after severe closed head injury: effects of forward and backward masking.
Three tachistoscopic tasks were employed to assess whether survivors of severe closed head injury (CHI) exhibit a disturbance of information processing within peripheral and/or central visual pathways. Twelve survivors of severe CHI and 12 individually matched control subjects completed a recognition threshold (no mask) task, a monoptic, forward masking by visual noise task (to assess processin...
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ژورنال
عنوان ژورنال: Perception & Psychophysics
سال: 1971
ISSN: 0031-5117,1532-5962
DOI: 10.3758/bf03208961