Abstract：
:Schizophrenia patients exhibit perceptual and cognitive deficits, including in visual motion processing. Given that cognitive systems depend upon perceptual inputs, improving patients' perceptual abilities may be an effective means of cognitive intervention. In healthy people, motion perception can be enhanced through perceptual learning, but it is unknown whether this perceptual plasticity remains in schizophrenia patients. The present study examined the degree to which patients' performance on visual motion discrimination can be improved, using a perceptual learning procedure. While both schizophrenia patients and healthy controls showed decreased direction discrimination thresholds (improved performance) with training, the magnitude of the improvement was greater in patients (47% improvement) than in controls (21% improvement). Both groups also improved moderately but non-significantly on an untrained task-speed discrimination. The large perceptual training effect in patients on the trained task suggests that perceptual plasticity is robust in schizophrenia and can be applied to develop bottom-up behavioral interventions.
journal_name
Brain Cognjournal_title
Brain and cognitionauthors
Norton DJ,McBain RK,Ongür D,Chen Ydoi
10.1016/j.bandc.2011.08.003subject
Has Abstractpub_date
2011-11-01 00:00:00pages
248-56issue
2eissn
0278-2626issn
1090-2147pii
S0278-2626(11)00130-8journal_volume
77pub_type
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