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Sustained attention in schizophrenia

by Wong, Ting-ting

Abstract (Summary)
(Uncorrected OCR) ABSTRACT I UK present study Investigated the sustained Htusitmn using n computet i/ed 1-7 tciMonorCnfitiiu?us IVtioituance I cm. hi ><> lirM-episoile schizophrenic patient**. ot whom M) were IWCtliCiiltOtHt n\ and compared their performance wirli n4 normal controls Patients wen tested twice, fust .? their admission. .mil second allei the acute symptoms haj bceu tfabili/fid to ex-imme how t ie .itkiutoiw! performance changed m the same patient o\ er tlw course nfa psychotic episode WV also included a lutlery of neuropsychological tests Hi examine tlicir iioiiropsvi.lu?htphoiwccn attentuiiuil pcrftHmmcv*. climc.il ami nttaeoowivi variables were also explored;, EUsuUs viggestcd tti.it the niedieatioit-iiiinc last KplMKJc patients performed siimificmtk poorly than normals or: sustained .mention, anJ substantial neuEopNvehi'.osteal iticitnUff^s of executive function. vc-hal and visual memory it* well a* verbal fluency witli .ice iv-.ulct am' years oi education controlled I lie re-test fimlme--sugpesied :hat patients' ancnnunal pevlomiancc. specifically the omission errors improved ?ei the course nfilhico Correlation anaiys.es ?UggCttC.tl that UtlcntWiWl performance was neither correlated with positive nor negative symptoms, hut selectively with some cognitive domains. The procnec oi u-lmhIivc deficits lit mcdKitiori-uaive fiivl episode sclii/uplirvmc patients implied that voynitive dctkils were 'he central feature ol schizophrenia. which was present in the eorij course oi illness Alsti, die improvement show n in ationfional peitormuiiec after medication suy^CSted llta: ultciition.il (kfV.il might he a ?ediatin;j vulnerability indicator ol schizophrenia Its independence troin nsyninfonutlog) indicated that audition deficit was neither a secondary product ol psyrlKXtc >ymptoms nor due ui lack of motivation I he limitation ttftbt present study .mil directions for I til ore si;i(lks would cimdUdc the discission
Bibliographical Information:

Advisor:

School:The University of Hong Kong

School Location:China - Hong Kong SAR

Source Type:Master's Thesis

Keywords:schizophrenia physiological aspects

ISBN:

Date of Publication:01/01/2000

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