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Retrospective Time Perception in Korsakoff's Syndrome
Mohamad El Haj1, Jean-Louis Nandrino1, Roy P C Kessels1
1From the SCALab-Sciences Cognitives et Sciences Affectives, University of Lille, CHU Lille, CNRS, Lille, France (MEH, J-LN, PA); the Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, The Netherlands (RK); the Department of Medical Psychology, Radboud University Medical Center, Nijmegen, The Netherlands (RK); the Centre of Excellence for Korsakoff and Alcohol-Related Cognitive Disorders, Vincent van Gogh Institute for Psychiatry, Venray, The Netherlands (RK); the Clinique de la Mitterie, Lomme, France (CM, J-EB); and the Service d'addictologie, CH Roubaix, France (LU).
Participants with Korsakoff's syndrome underestimated elapsed time during memory tasks. This suggests a faster perception of time in individuals with this neurological condition.
Area of Science:
- Neuroscience
- Cognitive Psychology
- Clinical Psychology
Background:
- Korsakoff's syndrome is a chronic memory disorder caused by severe thiamine deficiency.
- Retrospective timing, the estimation of past durations, is often impaired in neurological conditions.
- Understanding temporal perception deficits is crucial for assessing cognitive function in Korsakoff's syndrome.
Purpose of the Study:
- To investigate retrospective timing abilities in individuals with Korsakoff's syndrome.
- To determine if patients with Korsakoff's syndrome perceive time differently compared to a baseline.
- To explore the relationship between cognitive deficits and temporal perception in this population.
Main Methods:
- Four retrospective timing tasks were administered to participants with Korsakoff's syndrome.
- Tasks involved varied durations (15, 30, 45, 60 seconds) and cognitive demands.
- Participants estimated elapsed time post-task without prior awareness of the duration.
Main Results:
- Korsakoff participants consistently underestimated the elapsed time across all tasks.
- The degree of underestimation suggests a subjective experience of time passing more quickly.
- This finding indicates a specific deficit in retrospective temporal judgment.
Conclusions:
- Individuals with Korsakoff's syndrome exhibit impaired retrospective timing.
- Time perception appears accelerated in this patient group.
- Deficits in temporal processing may contribute to broader cognitive impairments in Korsakoff's syndrome.