Functions of the prefrontal cortex in the human brain

Area of Science:

• Neuroscience
• Cognitive Science
• Neurology

Background:

• The prefrontal cortex (PFC) is implicated in numerous brain pathologies.
• Decades of research aim to elucidate the PFC's precise functions for theoretical and clinical advancements.
• Existing electrophysiological and neuroimaging findings on PFC neuronal activity are often contradictory, leaving its roles disputed.

Purpose of the Study:

• To review major anatomical evidence, experimental data, and clinical observations of prefrontal dysfunction.
• To integrate scientific findings with behavioral data.
• To propose a model for the functional organization of the prefrontal cortex.

Main Methods:

• Selective review of anatomical evidence.
• Analysis of experimental data from neuroimaging and electrophysiology.
• Examination of clinical observations in patients with prefrontal dysfunction.

Main Results:

• Identified inconsistencies in current understanding of PFC functions.
• Highlighted the need for a coherent categorization of prefrontal dysfunction symptoms.
• Synthesized diverse data to inform a unified model.

Conclusions:

• A comprehensive model integrating anatomical, functional, and clinical data is needed for the PFC.
• Categorizing PFC dysfunction based on cognitive processes and neural substrates is essential.
• This review provides a framework for a unified model of prefrontal cortex organization.