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[The frontal lobe and psychoses].

J C Goldar1

  • 1Servicio del Hospital Nacional Dr. Braulio Moyano, Buenos Aires, Argentina.

Acta Psiquiatrica Y Psicologica De America Latina
|January 1, 1990
PubMed
Summary

Manic-depressive illness may stem from an imbalance between two prefrontal cortex mechanisms: one driving change (mania) and another promoting perseveration (depression). Anatomical alterations in the frontal lobe could cause this oscillation.

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Area of Science:

  • Neuroscience
  • Psychiatry

Context:

  • Manic-depressive illness (bipolar disorder) is characterized by mood swings.
  • The prefrontal isocortex is crucial for cognitive and emotional regulation.

Purpose:

  • To propose a neuroanatomical model for manic-depressive illness.
  • To explore the role of frontal lobe mechanisms in mood regulation.

Summary:

  • Manic-depressive illness may result from an imbalance between two antagonist brain mechanisms in the prefrontal isocortex.
  • One mechanism, linked to the hippocampal allocortex, promotes change (mania); the other, from the olfactory allocortex, promotes perseveration (depression).
  • Frontal lobe morphogenesis alterations can cause permanent unbalance, leading to oscillations between mania and depression.

Impact:

  • Suggests a potential anatomical basis for mood disorders.
  • Highlights the importance of prefrontal cortex structure in affective behaviors.
  • Advocates for a psychiatric science grounded in brain anatomy.

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