Comparison of schizophrenics and normals on a short term memory task involving recognition

Type of content
Theses / Dissertations
Publisher's DOI/URI
Thesis discipline
Psychology
Degree name
Master of Arts
Publisher
University of Canterbury
Journal Title
Journal ISSN
Volume Title
Language
English
Date
1972
Authors
Smith, John Francis
Abstract

Bauman and Murray (1968) and Nachmani and Cohen ( 1969) have shown that schizophrenics perform as well as normals and non-schizophrenic psychiatric patients on simple recognition tasks, but have poorer performance on recall tasks. A study by Bannatyne (1971), using paired-associate recognition and recall analogues, found that schizophrenics were inferior to normals on both tasks. Bannatyne concluded that two factors could be operating to produce decrements in the schizophrenics’ performance ( i) poor utilization of stimulus cues for the formation of associative bonds, and (ii) overloading at input due to abnormally slow processing. This thesis investigates the proposition that schizophrenics are inefficient in their utilization of associations between words as cues for organizing verbal material. Simple recognition tests of material of varying levels of association were administered to 16 schizophrenic and 16 normal subjects. Results show equivalent performance for the two groups on a low association task and superior performance for normals over schizophrenics on a high association recognition task. These are interpreted as supporting the initial hypothesis that schizophrenics are inefficient in their utilization of associations as organizational cues. However, it is felt that the possibility of retrieval factors contributing to the schizophrenics' poorer performance cannot be completely excluded.

Description
Citation
Keywords
Memory, Recognition (Psychology), Schizophrenia
Ngā upoko tukutuku/Māori subject headings
ANZSRC fields of research
Rights
All Rights Reserved