AUDITORY IMAGERY AND HALLUCINATIONS

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Abstract
A sample of 20 hallucinating schizophrenics, 20 nonhallucinating schizophrenics and 20 medical patients were given scales measuring vividness of volitional auditory imagery, controllability of volitional auditory imagery and spontaneous imagery in daydreaming. Subjects were 60 male veterans, tested within 3 wk of admission to the hospital. No significant differences in vividness were found among hallucinating schizophrenics, nonhallucinating schizophrenics and medical patients on the vividness of Auditory Imagery Scale. Hallucinating schizophrenics reported significantly lower vividness scores for the emotional interpersonal items. The association vivid volitional imagery with hallucination was not shown. No significant differences were found between groups in the neutral interpersonal category of the Controllability of Auditory Imagery Scale. On emotional interpersonal items, hallucinating schizophrenics had significantly decreased controllability relative to nonhallucinating schizophrenics and medical patients. Measures of spontaneous imagery in daydreams were obtained with the Daydreaming Frequency, Hallucinatory-Vividness in Daydreams and Auditory Imagery in Daydreams subscales of the Singer and Antrobus Imaginal Processes Inventory. No significant differences between groups on these variables were found. These measures of spontaneous imagery did not correlate significantly with the measures of volitional imagery. Additional measures of effort and anxiety were constructed to investigate their effect on vividness scores. The only significant finding was the association of increased anxiety with decreased vividness.

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