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oai:www.ideals.illinois.edu:2142/82290 2023-07-11 col_2142_5131 col_2142_11614 com_2142_5130 com_2142_11613 com_2142_8903

Miller, Gregory A. Keller, Jennifer 2015-09-25T20:40:10Z 2015-09-25T20:40:10Z 10000-01-01 1999 1999 An ERP study of sensory and working memory was designed to avoid confounding MMN with other components. Schizophrenics, depressives, and controls performed a tone discrimination task, in which subjects counted or ignored tones. Evidence of memory abnormalities emerged as a function of diagnosis and stimulus sequence. All three groups showed intact auditory sensory memory, with comparable amplitudes and sequence effects. Schizophrenics did not differ from controls overall, but, in analyses as a function of diagnostic subtype, MMN was reduced in paranoid schizophrenics. Depressives showed dysfunctional working memory, as indexed by exaggerated N2b. Schizophrenics did not differ from controls overall, but, in analyses as a function of diagnostic subtype, N2b for was nonsignificantly higher in negative-symptom schizophrenics, who most resemble depressives. Results suggest that in certain MMN paradigms which removed stimulus confounds, schizophrenics can produce an normal MMN, which is appropriately influenced by preceding stimulus sequence. In addition, results suggest abnormal voluntary, strategy-sensitive processing in psychopathology, particularly in patients showing negative symptoms. Made available in DSpace on 2015-09-25T20:40:10Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 9953062.pdf: 6104628 bytes, checksum: 4b4118912b47516975564329e0d2c7b5 (MD5) Previous issue date: 1999 Embargo set by: Seth Robbins for item 83571 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs U of I Only 137 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1999. http://hdl.handle.net/2142/82290 (MiAaPQ)AAI9953062 eng Psychology, Clinical Cognitive Differentiation of Schizophrenia and Depression text Psychology Psychology University of Illinois at Urbana-Champaign Dissertation Ph.D.