Dissociation of short- and long-term face memory: evidence from long-term recency effects in temporal lobe epilepsy.

Full Abstract

We tested whether memory deficits in temporal lobe epilepsy (TLE) are better described by a single- or dual-store memory model. To this aim, we analyzed the influence of TLE and proactive interference (PI) on immediate and 24-h long-term recency effects during face recognition in 16 healthy participants and 18 right and 21 left non-surgical TLE patients. PI in healthy participants or TLE erased the long-term recency effect, but left the immediate recency effect unaffected. Although the immediate recency effect was still visible in right TLE patients, the number of detected recency items during immediate recognition was decreased in right TLE compared to left TLE. Right TLE was also related to decreased detection of pre-recency items during delayed recognition compared to left TLE, and decreased detection of pre-recency items during immediate recognition under PI. The results show that the temporal lobes are necessary for the long-term recency effect, but not for the immediate recency effect, and thus speak for a dissociation of short- and long-term memory for faces. Right TLE is related to more severe long-term memory deficits than left TLE and is also related to additional short-term memory deficits for faces.

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Author information

Author/s: Bengner, T (T); Malina, T (T);

Affiliation: Epilepsy Center Hamburg, Protestant Hospital Alsterdorf, Hamburg, Germany. tbengner(-atsign-)hotmail.com

Journal and publication information

Publication Type: Journal Article

Journal: Brain and cognition (Brain Cogn), published in United States. (Language: eng)

Reference: 2007-Jul; vol 64 (issue 2) : pp 189-200

Dates: Created 2007/06/19; Completed 2007/08/29;

PMID: 17408829, status: MEDLINE (last retrieval date: 12/26/2008)

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MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Adult
Age Factors
Analysis of Variance
Chi-Square Distribution
Epilepsy, Temporal Lobe - complications; physiopathology
Face
Female
Functional Laterality - physiology
Humans

Male
Memory Disorders - etiology; physiopathology
Middle Aged
Models, Neurological
Perceptual Masking - physiology
Recognition (Psychology) - physiology
Seizures - complications; physiopathology
Statistics, Nonparametric
Time Factors

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