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Updated: Jun 3, 2026

Investigating the Neural Mechanisms of Aware and Unaware Fear Memory with fMRI
Published on: October 6, 2011
[When the suspect hears voices: feigned imperative hallucinations]
Harald L G J Merckelbach1, Maarten J V Peters, Marko Jelicic
1Universiteit Maastricht, faculteit Psychologie en Neurowetenschappen, sectie Forensische Psychologie, Maastricht, the Netherlands. H.Merckelbach@maastrichtuniversity.nl
Forensic psychiatry can detect feigned hallucinations in suspects claiming psychotic symptoms. Validated tests help identify malingering, preventing trivialization of criminal responsibility.
Area of Science:
- Forensic Psychiatry
- Clinical Psychology
Background:
- Suspects may feign psychotic symptoms, like hallucinations, to evade criminal responsibility.
- Relying solely on clinical judgment can lead to misidentification of malingerers.
Observation:
- A male suspect accused of murder claimed imperative hallucinations.
- Structured interviews and specialized tests were used to assess the hallucination claim.
- Evidence indicated the suspect had feigned the imperative hallucinations.
Findings:
- Validated tests successfully identified simulated imperative hallucinations.
- The suspect confessed to feigning hallucinations when confronted with the evidence.
Implications:
- The study demonstrates the utility of validated testing in forensic evaluations.
- Accurate detection of feigned symptoms is crucial for legal and psychiatric assessments.
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