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Utilization behavior as a white matter disconnection syndrome.

Kenji Ishihara1, Hiroshi Nishino, Toshiyuki Maki

  • 1Department of Neurology, Kameda General Hospital. kishi@med.showa-u.ac.jp

Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
|July 31, 2002
PubMed
Summary

This study examines utilization behavior, a frontal lobe symptom, in a patient with brain infarction. Findings suggest it may be a white matter disconnection syndrome rather than solely a frontal lobe issue.

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Area of Science:

  • Neuroscience
  • Neuropathology

Background:

  • Utilization behavior is often considered a symptom of frontal lobe dysfunction.
  • This behavior involves the compulsive use of objects presented to an individual.

Observation:

  • A 72-year-old male patient exhibited utilization behavior with daily objects.
  • The patient's behavior ceased when instructed not to use the objects.
  • Neuroimaging revealed acute infarction in the left superior frontal gyrus with decreased blood flow.

Findings:

  • Neuropathological examination confirmed acute infarction in the subcortical white matter of the left superior frontal lobe.
  • These findings correlated with the neuroradiological results.
  • The study proposes utilization behavior may stem from white matter disconnection.

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Implications:

  • This case challenges the traditional view of utilization behavior as exclusively a frontal lobe symptom.
  • It suggests that white matter pathways are crucial for regulating this behavior.
  • Further research into white matter disconnection syndromes is warranted.