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Memory enhancement induced by hypothalamic/fornix deep brain stimulation

✍ Scribed by Clement Hamani; Mary Pat McAndrews; Melanie Cohn; Michael Oh; Dominik Zumsteg; Colin M. Shapiro; Richard A. Wennberg; Andres M. Lozano

Book ID: 101466568
Publisher: John Wiley and Sons
Year: 2008
Tongue: English
Weight: 390 KB
Volume: 63
Category: Article
ISSN: 0364-5134
DOI: 10.1002/ana.21295

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✦ Synopsis

Abstract

Bilateral hypothalamic deep brain stimulation was performed to treat a patient with morbid obesity. We observed, quite unexpectedly, that stimulation evoked detailed autobiographical memories. Associative memory tasks conducted in a double‐blinded “on” versus “off” manner demonstrated that stimulation increased recollection but not familiarity‐based recognition, indicating a functional engagement of the hippocampus. Electroencephalographic source localization showed that hypothalamic deep brain stimulation drove activity in mesial temporal lobe structures. This shows that hypothalamic stimulation in this patient modulates limbic activity and improves certain memory functions. Ann Neurol 2008;63:119–123

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