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The Klüver-Bucy Syndrome
1VA Medical Center, Great Lakes VA Healthcare System, Tomah, WI, USA.
Frontiers of Neurology and Neuroscience
|November 18, 2017
Summary
The Klüver-Bucy syndrome (KBS) involves behavioral changes after temporal lobectomy. While some symptoms persist, others resolve over time, with causes linked to temporal lobe and amygdala damage.
Area of Science:
- Neuroscience
- Behavioral Neuroscience
- Neurology
Background:
- The Klüver-Bucy syndrome (KBS) was first described in monkeys following bilateral temporal lobectomy.
- KBS is characterized by hyperorality, placidity, hypermetamorphosis, altered sexual behavior, and visual agnosia.
Purpose of the Study:
- To review the historical discovery and evolving understanding of the Klüver-Bucy syndrome.
- To explore the localization of KBS features within the temporal lobe and amygdala.
- To discuss the current understanding of KBS pathophysiology and its manifestation in humans.
Main Methods:
- Historical review of seminal studies on temporal lobectomy and associated behavioral changes.
- Analysis of lesion studies in monkeys to correlate specific brain regions with KBS symptoms.
- Clinical observation and case studies of human patients with temporal lobe dysfunction.
Main Results:
- Bilateral temporal lobectomy in monkeys produces a distinct syndrome with both persistent and transient features.
- Specific KBS symptoms can be localized to distinct temporal lobe structures, including the amygdala and ventral temporal cortex.
- Human KBS often presents with amnesia and aphasia, differing from the full syndrome observed in monkeys.
Conclusions:
- The Klüver-Bucy syndrome results from bilateral damage to the temporal neocortex or amygdala.
- KBS is understood as a disruption of limbic networks modulating emotional and affective behaviors.
- Treatment for human KBS is challenging, with outcomes often being unsatisfactory.
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