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Studies of auditory verbal hallucinations
1Department of Psychiatry, Vanderbilt University, Nashville, Tennessee, USA.
Psychophysiology
|February 16, 2016
Summary
Neuroscientists are investigating auditory verbal hallucinations by examining the corollary discharge theory. Research suggests impaired corollary discharge may underlie these complex auditory experiences in psychotic patients.
Area of Science:
- Neuroscience
- Psychiatry
- Cognitive Science
Background:
- Auditory verbal hallucinations (AVHs) are a core symptom of psychosis.
- The precise neural mechanisms underlying AVHs remain incompletely understood.
- The corollary discharge theory offers a potential framework for explaining AVHs.
Purpose of the Study:
- To review research investigating the corollary discharge theory in the context of AVHs.
- To evaluate the utility of the vocalization paradigm in studying AVHs.
- To discuss the challenges of linking complex clinical phenomena to basic cognitive deficits.
Main Methods:
- Review of studies employing a vocalization paradigm.
- Focus on research by Judy Ford.
- Analysis of the corollary discharge hypothesis in psychotic patients with AVHs.
Main Results:
- The vocalization paradigm provides a method to test the corollary discharge hypothesis.
- Evidence suggests a potential link between impaired corollary discharge and AVHs.
- The research highlights the complexity of AVHs.
Conclusions:
- Impaired corollary discharge is a plausible mechanism contributing to AVHs.
- The vocalization paradigm is a valuable tool for studying AVHs.
- Reducing complex hallucinations to basic cognitive abnormalities presents significant challenges.
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