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Factor analysis of the Communication Disturbances Index.

S W Gordinier¹, N M Docherty

¹Department of Psychology, Kent State University, OH 44240, USA. sgordini@kent.edu

Psychiatry Research

|February 27, 2001

Summary

This study used factor analysis to explore thought disorder in schizophrenia patients. Findings suggest language and memory deficits may underlie communication disturbances in schizophrenia.

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Area of Science:

Psychiatry
Linguistics
Cognitive Psychology

Background:

Schizophrenic thought disorder is characterized by disruptions in communication.
Understanding the underlying cognitive processes is crucial for effective treatment.

Purpose of the Study:

To investigate the latent structures of referential communication disturbances in schizophrenia using factor analysis.
To identify potential cognitive deficits contributing to thought disorder.

Main Methods:

Utilized the Communication Disturbances Index (CDI) to assess speech in 58 stable schizophrenia outpatients.
Employed factor analysis (principal components analysis with oblique rotation) on communication disturbance data.
Calculated disturbance instances per 100 words.

Main Results:

A three-factor solution indicated weaknesses in language structural organization, concept-boundary definition, and memory functioning.
A two-factor solution combined structural organization and concept-boundary definition into executive functioning.
These factors represent distinct yet potentially related deficits in schizophrenia.

Conclusions:

The findings suggest specific cognitive and linguistic deficits contribute to thought disorder in schizophrenia.
Results may inform the development of more targeted models of language disturbance.
Further research can explore the interplay between executive functions, memory, and communication in schizophrenia.

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