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dc.contributor.authorBansal, S.
dc.contributor.authorRobinson, B.M.
dc.contributor.authorGeng, J.J.
dc.date.accessioned2019-05-21T18:56:21Z
dc.date.available2019-05-21T18:56:21Z
dc.date.issued2018
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85047396330&doi=10.1016%2fj.scog.2018.05.001&partnerID=40&md5=399c7732266727e01c7897988690f002
dc.identifier.urihttp://hdl.handle.net/10713/9235
dc.description.abstractTraditionally, attention was thought to be directed by either top-down goals or bottom-up salience. Recent studies have shown that the reward history of a stimulus feature also acts as a powerful attentional cue. This is particularly relevant in schizophrenia, which is characterized by motivational and attentional deficits. Here, we examine the impact of reward on selective attention. Forty-eight people with schizophrenia (PSZ) and 34 non-psychiatric control subject (NCS) discriminated the location of a target dot appearing inside a left circle or right circle. The circles were different colors, one of which was associated with reward via pre-training. In the first 2 blocks, targets were equally likely to appear in the left or right circle. In the last 4 blocks, the target was 75% likely on one side, thus allowing us to separately examine how attention was impacted by reward (color) and probability (location). PSZ had slower overall reaction times (RTs) than NCS. Both groups showed robust effects of spatial probability and reward history, with faster RTs for the rewarded color and for the more probable location. These effects were similar in PSZ and NCS. Negative symptom severity correlated with overall RT slowing, but there were no correlations between symptoms and reward-associated biasing of attention. PSZ demonstrated RT slowing but normal reward history and spatial probability-driven RT facilitation. These results are conceptually similar to prior findings showing intact implicit reward effects on response bias, and suggest that implicit processing of reward and probability is intact in PSZ. Copyright 2018 The Authorsen_US
dc.description.sponsorshipThe current study was funded by NIH grant R01MH065034 awarded to JMG and SJL, and NIH grant R01 MH080066.en_US
dc.description.urihttps://dx.doi.org/10.1016/j.scog.2018.05.001en_US
dc.language.isoen_USen_US
dc.publisherElsevier Inc.en_US
dc.relation.ispartofSchizophrenia Research: Cognition
dc.subjectReward historyen_US
dc.subjectSchizophreniaen_US
dc.subjectSelective attentionen_US
dc.subjectSpatial probabilityen_US
dc.titleThe impact of reward on attention in schizophreniaen_US
dc.typeArticleen_US
dc.identifier.doi10.1016/j.scog.2018.05.001


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