Abstract:
:This study assessed visuospatial attention in healthy adults and medicated schizophrenic patients. Participants performed a visual orientation task in which a peripheral cue was followed. at different intervals, by a target presented either at valid or invalid locations. When the long stimulus onset asynchrony (SOA) was used, participants were presented with either a single peripheral cue (single-cue condition) or two cues, the peripheral cue followed by a central cue (the double-cue condition). Healthy adults showed marginal facilitation effects with the short SOA and similar inhibition of return effects with the long SOA in both single-cue and double-cue conditions. Schizophrenic individuals showed a big facilitation effect with the short SOA and normal inhibition of return with the long SOA in both cue conditions. Results with the short SOA replicated previous findings (Huey, E.D., Wexler, B.E., 1994. Schizophrenia Research 14, 57-63) but, in contrast, we did not observe blunted inhibition of return with the long SOA. An inspection of the differences in the procedures used in both studies may help both to account for the discrepancies and to reveal what processes involved in visuospatial attention are affected in schizophrenia.
journal_name
Schizophr Resjournal_title
Schizophrenia researchauthors
Fuentes LJ,Boucart M,Alvarez R,Vivas AB,Zimmerman MAdoi
10.1016/s0920-9964(99)00044-4subject
Has Abstractpub_date
1999-11-09 00:00:00pages
75-80issue
1eissn
0920-9964issn
1573-2509pii
S0920-9964(99)00044-4journal_volume
40pub_type
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更新日期:2000-03-16 00:00:00
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pub_type: 杂志文章,多中心研究
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pub_type: 杂志文章
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更新日期:2009-04-01 00:00:00
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journal_title:Schizophrenia research
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更新日期:2012-06-01 00:00:00