کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
327693 542960 2012 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Evidence for stimulus-general impairments on auditory stream segregation tasks in schizophrenia
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی روانپزشکی بیولوژیکی
پیش نمایش صفحه اول مقاله
Evidence for stimulus-general impairments on auditory stream segregation tasks in schizophrenia
چکیده انگلیسی

BackgroundAuditory impairments in schizophrenia have been demonstrated previously, especially for tasks requiring precise encoding of frequency, although it is unclear the extent to which they have difficulty using pitch information and other cues to segregate sounds. We determined the extent to which those with schizophrenia have difficulty using pitch information and other auditory cues to segregate sounds that are presented sequentially.MethodsTen participants with schizophrenia and nine healthy/normal control participants completed a battery of tasks that tested for the ability to perform sequential auditory stream segregation using pitch, amplitude modulation, or inter-aural phase difference as cues to segregation.ResultsAll three sequential segregation tasks showed reduced tendency for those with schizophrenia to perceive segregated sounds, compared to control participants.ConclusionsThese findings extend prior research by demonstrating a general impairment on sequential sound segregation tasks in schizophrenia, and not just on tasks that require precise encoding of frequency. Together, the pattern of results provide evidence that auditory impairments in schizophrenia result from selective abnormalities in neural circuits that carry out specific computations necessary for stream segregation, as opposed to an impairment in processing specific cues.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Psychiatric Research - Volume 46, Issue 12, December 2012, Pages 1540–1545
نویسندگان
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