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Related Experiment Video

Updated: Jul 9, 2026

Association Between Sleep Quality and Cognitive Symptoms in Patients with Major Depressive Disorder

Association Between Sleep Quality and Cognitive Symptoms in Patients with Major Depressive Disorder

Published on: April 26, 2024

Cognitive functioning in depersonalization disorder.

Orna Guralnik¹, Timo Giesbrecht, Margaret Knutelska

¹Department of Psychiatry, Mount Sinai School of Medicine, New York City, New York 10029, USA.

The Journal of Nervous and Mental Disease

|December 20, 2007

Summary

This summary is machine-generated.

Depersonalization disorder (DPD) is linked to cognitive issues in early perception and attention. Individuals with DPD showed deficits in immediate recall but not delayed recall, suggesting specific memory processing disruptions.

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Area of Science:

Neuroscience
Psychiatry
Cognitive Psychology

Background:

Depersonalization disorder (DPD) is a dissociative condition marked by feelings of unreality and detachment.
DPD has been anecdotally linked to perceptual and memory deficits.

Purpose of the Study:

To investigate cognitive functioning in individuals with Depersonalization disorder.
To identify specific neuropsychological deficits associated with DPD.

Main Methods:

A comprehensive neuropsychological battery was administered to 21 DPD participants and 17 healthy controls.
Cognitive assessments included IQ, working memory, selective attention, and various memory recall tests.

Main Results:

No significant differences were found in IQ, working memory, or selective attention between groups.
The DPD group exhibited significantly worse immediate visual and verbal recall, but not delayed recall.
Dissociation severity correlated with slower processing speed and increased distractibility.

Conclusions:

DPD is associated with disruptions in early perceptual and attentional processes.
Cognitive deficits in DPD appear specific to immediate information processing rather than long-term memory storage.