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Auditory illusions and Post-traumatic stress disorder: Sound test in a case-control study
Mathis Le Bellego1, Pauline Chaste1, Nathalie Dzierzynski2
1Psychiatry of Children and Adolescent Department, Necker Hospital, 75015 Paris, France.
Journal of Psychiatric Research
|August 11, 2024
Summary
Individuals with Post-Traumatic Stress Disorder (PTSD) experience more frequent and negative auditory illusions than healthy individuals. These illusions correlate with dissociation, hyperarousal, and reliving symptoms, suggesting a potential impact on PTSD prognosis.
Area of Science:
- Psychiatry
- Neuroscience
- Psychology
Background:
- Post-Traumatic Stress Disorder (PTSD) is a common and debilitating condition.
- Hallucinations in PTSD are studied, but auditory illusions remain under-researched.
- Auditory illusions may affect PTSD functioning and prognosis.
Purpose of the Study:
- To investigate the prevalence and characteristics of auditory illusions in PTSD.
- To explore the relationship between auditory illusions and PTSD symptoms.
Main Methods:
- A case-control study involving 30 PTSD patients and 30 controls.
- Utilized a vocoder-based sound test to assess false recognitions (auditory illusions).
- Assessed emotional valence, dissociation, hyperarousal, and reliving.
Main Results:
- PTSD participants reported auditory illusions significantly more often (65%) than controls (20%).
- Auditory illusions were more emotionally negative in the PTSD group.
- Dissociation, hyperarousal, and reliving correlated with auditory illusions in PTSD.
Conclusions:
- Auditory illusions are prevalent in PTSD and may be linked to dissociation.
- Further research is needed to understand the impact of auditory illusions on PTSD prognosis.
- These findings support cognitive models and neurobiological studies of PTSD.
