Biomedical subjects

Michael F Green

Publications and source records attributed to Michael F Green.

57 records · Page 4Linked to original sources

PubMed2002

Schizophrenia and schizotypal personality: a tribute to Peter H. Venables.

Peter Venables made multiple contributions to the field of schizophrenia and schizotypy, most notably in the areas of psychophysiology, neurocognition, and assessment. On the 50th anniversary of the start of his research career in 1951, a conference on schizophrenia and schizotypy was held in his honor in Tuscany, Italy. This special edition encapsulates many of the presentations given at that meeting, covering the areas of neurodevelopment, assessment, genetics, psychophysiology, neurocognition, brain imaging, psychopharmacology, intervention, and prevention. A key theme of this special edition concerns the integration of schizophrenia and schizotypy research in a manner that will allow for a more comprehensive understanding of both of these disorders.

History, 20th Century↗

PubMed2002

Nonverbal social perception and symptomatology in schizophrenia.

This study examined the relationship between nonverbal social perception and symptomatology in schizophrenia. Schizophrenic patients (n=28) and normal controls (n=28) were given the profile of nonverbal sensitivity test (PONS). Patients' symptoms were rated with the brief psychiatric rating scale (BPRS). Schizophrenic subjects performed significantly more poorly than normal subjects in their ability to decode nonverbal cues. In addition, normal subjects improved their accuracy significantly more than patients when provided with additional cues per scene to decode. The patients' total PONS score was not significantly correlated with the BPRS summary scores for positive or negative symptoms, but was significantly correlated with the individual positive symptom of conceptual disorganization. Subjects classified as having paranoid schizophrenia (n=11) on the basis of chart diagnoses performed significantly better on the PONS than did undifferentiated schizophrenic subjects (n=13). The discussion reviews how these results contribute to our understanding of social deficits in schizophrenia.

Adult↗

PubMed2002

Applications of errorless learning for improving work performance in persons with schizophrenia.

OBJECTIVE: Until recently, few training methods used in the psychosocial rehabilitation of persons with schizophrenia have taken into account the neurocognitive deficits common to this illness. The present study tested a training method called errorless learning (which theoretically compensates for neurocognitive impairments) for efficacy at teaching entry-level job tasks to persons with serious and persistent mental illness. METHOD: Sixty-five unemployed, clinically stable outpatients with schizophrenia or schizoaffective disorder were randomly assigned to training by means of either errorless learning or conventional instruction for two entry-level job tasks (index card filing and toilet tank assembly). Training was conducted in small groups of four subjects for 90-120 minutes in a simulated workshop. Efficacy-as measured by accuracy, speed, and overall productivity-was assessed immediately after training and at a 3-month follow-up evaluation. RESULTS: Significant group differences in accuracy that favored errorless learning were found on both job tasks. In terms of productivity, the errorless learning group was superior to the conventional instruction group on the card filing task, and differences for the tank assembly task approached significance. There were no significant group differences in speed. Both groups showed significant drops in accuracy and productivity on the tank assembly task from immediately after training to the 3-month follow-up evaluation; performance levels were more stable for both groups on the card filing task. CONCLUSIONS: Errorless learning appears to be a useful training method for establishing introductory high levels of performance in the work rehabilitation of persons with schizophrenia. Future studies may wish to test its long-term durability by embedding it within supported employment programs.

Adult↗