Encoding, memory, and thought disorder in schizophrenia and mania. 1986

P D Harvey, and E A Earle-Boyer, and M S Weilgus, and J C Levinson

Schizophrenic (n = 24) and manic (n = 20) inpatients were compared with a normal comparison sample (n = 10) on memory and encoding performance for both self- and other-generated speech. It was found that the level of encoding, as indexed by the level of organization present in the recalled speech, predicted memory performance for both schizophrenic and normal samples. Schizophrenics were less effective at encoding than normals, although the relationship between level of encoding and memory performance was similar for both samples. For the manic patients, however, clinically rated thought disorder predicted memory performance better than encoding performance. It appeared that thought disorder specifically disrupted recall performance, with less of an effect on encoding. These relationships, as well as the lack of a significant relationship between thought disorder and task performance in the schizophrenics, are discussed in terms of their implications for later research in the area of information processing in psychotic patients.

UI MeSH Term Description Entries
D008297 Male Males
D008568 Memory Complex mental function having four distinct phases: (1) memorizing or learning, (2) retention, (3) recall, and (4) recognition. Clinically, it is usually subdivided into immediate, recent, and remote memory.
D011939 Mental Recall The process whereby a representation of past experience is elicited. Recall, Mental
D003072 Cognition Disorders Disorders characterized by disturbances in mental processes related to learning, thinking, reasoning, and judgment. Overinclusion,Disorder, Cognition,Disorders, Cognition
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D001714 Bipolar Disorder A major affective disorder marked by severe mood swings (manic or major depressive episodes) and a tendency to remission and recurrence. Affective Psychosis, Bipolar,Bipolar Disorder Type 1,Bipolar Disorder Type 2,Bipolar Mood Disorder,Depression, Bipolar,Manic Depression,Manic Disorder,Manic-Depressive Psychosis,Psychosis, Manic-Depressive,Type 1 Bipolar Disorder,Type 2 Bipolar Disorder,Psychoses, Manic-Depressive,Bipolar Affective Psychosis,Bipolar Depression,Bipolar Disorders,Bipolar Mood Disorders,Depression, Manic,Depressions, Manic,Disorder, Bipolar,Disorder, Bipolar Mood,Disorder, Manic,Manic Depressive Psychosis,Manic Disorders,Mood Disorder, Bipolar,Psychoses, Bipolar Affective,Psychoses, Manic Depressive,Psychosis, Bipolar Affective,Psychosis, Manic Depressive
D012559 Schizophrenia A severe emotional disorder of psychotic depth characteristically marked by a retreat from reality with delusion formation, HALLUCINATIONS, emotional disharmony, and regressive behavior. Dementia Praecox,Schizophrenic Disorders,Disorder, Schizophrenic,Disorders, Schizophrenic,Schizophrenias,Schizophrenic Disorder
D012565 Schizophrenic Psychology Study of mental processes and behavior of schizophrenics. Psychology, Schizophrenic

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