Abstract：
:The present study determined the minimal exposure time (i.e., critical stimulus duration (CSD) necessary for feature registration and recognition by normals and chronic schizophrenics. Our interest was whether the longer exposure times required by schizophrenics than by normals could be attributed to an inability of schizophrenics to maintain attention when the task criteria were stringent as opposed to 'loose'. The present findings support previous findings of impaired feature recognition by chronic schizophrenics. Chronic schizophrenics' and normals' CSDs were not affected by task criterion. The consistent performance by these groups on the 'loose' and 'rigid' task criteria suggest that if attentional lapses occur then they are as likely to occur for chronic schizophrenics as for normals and they are independent of the task's criterion. It is concluded that impaired feature registration for chronic schizophrenics is a consequence of a deficit at the earliest stage of encoding.
journal_name
Schizophr Resjournal_title
Schizophrenia researchauthors
Schwartz BD,Evans WJ,Sautter F,Winstead DKdoi
10.1016/0920-9964(92)90049-bsubject
Has Abstractpub_date
1992-07-01 00:00:00pages
185-9issue
2eissn
0920-9964issn
1573-2509pii
0920-9964(92)90049-Bjournal_volume
7pub_type
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pub_type： 临床试验,杂志文章,随机对照试验
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pub_type： 杂志文章
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journal_title：Schizophrenia research
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更新日期：2008-07-01 00:00:00
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pub_type： 杂志文章,随机对照试验
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更新日期：2020-01-01 00:00:00
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pub_type： 杂志文章,多中心研究
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更新日期：2017-07-01 00:00:00
abstract：:Speech deficits, notably those involved in psychomotor retardation, blunted affect, alogia and poverty of content of speech, are pronounced in a wide range of serious mental illnesses (e.g., schizophrenia, unipolar depression, bipolar disorders). The present project evaluated the degree to which these deficits manifes...
journal_title：Schizophrenia research
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