@article{
 title = {Dynamic, state-dependent thresholds for the perception of single-element apparent motion: bistability from local cooperativity},
 type = {article},
 year = {1997},
 keywords = {*Motion Perception,Adult,Differential Threshold,Female,Humans,Male},
 pages = {1077-1088},
 volume = {59},
 id = {9678d327-7b01-3747-9f22-66ac092ad78d},
 created = {2017-09-01T15:54:16.201Z},
 file_attached = {false},
 profile_id = {80da7853-f7b7-36a9-8e4c-d7ddb2d9e538},
 group_id = {a2333ea3-15a4-3d40-8d36-f0d9590ca926},
 last_modified = {2017-09-01T15:54:16.311Z},
 read = {false},
 starred = {false},
 authored = {false},
 confirmed = {false},
 hidden = {false},
 language = {eng},
 abstract = {Previous studies have indicated that the formation of coherent patterns for multielement motion displays depends on global cooperative interactions among large ensembles of spatially distributed motion detectors. These interactions enhance certain motion directions and suppress others. It is reported here that perceiving one element moving between two nearby locations likewise is subject to cooperative influences (possibly facilitating and inhibiting interactions within a local ensemble of overlapping detectors). Thresholds depending on luminance contrast were measured for a generalized single-element apparent-motion stimulus, and evidence for spontaneous switching and hysteresis effects indicated that motion perception near the 50% threshold was bistable. That is, for conditions in which motion and nonmotion were perceived half the time, the two percepts were distinct; when one was perceived, it clearly was discriminable from the other. These results indicated that (1) single-element apparent-motion thresholds depended on the immediately preceding state of the ensemble of motion detectors responding to the stimulus, and (2) the stimulus activation of individual motion detectors always might be influenced by recurrent, cooperative interactions resulting from the detectors' being embedded within interconnected ensembles.},
 bibtype = {article},
 author = {Hock, H. and Kogan, K. and Espinoza, J.},
 number = {7}
}

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