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Related Experiment Videos

A reticulo-frontal disconnection syndrome.

E Goldberg1, R M Bilder, J E Hughes

  • 1Medical College of Pennsylvania/Eastern Pennsylvania Psychiatric Institute, Philadelphia.

Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
|December 1, 1989
PubMed
Summary

Persistent executive deficit after head trauma was linked to damage in the ventral mesencephalic tegmentum, not the prefrontal cortex. This suggests a "reticulo-frontal disconnection syndrome" may explain cognitive deficits following brain injury.

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Area of Science:

  • Neuroscience
  • Neurology
  • Cognitive Science

Background:

  • Executive deficits are typically associated with prefrontal cortex damage.
  • Head trauma can lead to persistent cognitive impairments.

Observation:

  • A patient recovering from head trauma exhibited persistent executive deficits.
  • Neuroimaging revealed no frontal lobe lesions but a lesion in the ventral mesencephalic tegmentum.

Findings:

  • The observed executive deficit is proposed to result from damage to mesencephalic reticular nuclei and their prefrontal projections.
  • This suggests a novel
  • reticulo-frontal disconnection syndrome

Implications:

  • This syndrome may offer a new explanation for cognitive deficits in head trauma patients.

Related Experiment Videos

  • The findings could also be relevant to understanding schizophrenia pathophysiology.