Temporal lobe epilepsy and the selective reminding test: the conventional 30-minute delay suffices |
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Authors: | Bell Brian D Fine Jason Dow Christian Seidenberg Michael Hermann Bruce P |
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Affiliation: | Department of Neurology, University of Wisconsin-Madison, Madison, WI 53792, USA. bell@neurology.wisc.edu |
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Abstract: | Conventional memory assessment may fail to identify memory dysfunction characterized by intact recall for a relatively brief period but rapid forgetting thereafter. This study assessed learning and retention after 30-min and 24-hr delays on auditory and visual selective reminding tests (SRTs) in right (n=20) and left (n=22) temporal lobe epilepsy (TLE) patients and controls (n=49). The left TLE group performed significantly worse than controls on all 3 trials of both tests. The right TLE group differed from the controls on all 3 visual SRT trials and on learning for the auditory SRT. There were no between-groups differences in rate of information lost at the 30-min versus the 24-hr delay. At the individual level, there was no difference in the percentage of patients versus controls who demonstrated isolated memory impairment at the 24-hr delay. Accelerated forgetting over 24 hr is uncommon in TLE patients. |
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