Does brain white matter growth expand the cortex like a balloon? Hypothesis and consequences

Area of Science:

• Neuroscience
• Human Anatomy
• Cognitive Science

Background:

• Phospholipid metabolism is theorized to influence human brain growth.
• Deviations in phospholipid metabolism may correlate with creativity and mental disorders.

Purpose of the Study:

• To propose a neuroanatomical model linking white matter growth to cortical expansion.
• To explore how cortical expansion affects afferent signal differentiation.
• To connect these processes to creativity and mental disorders.

Main Methods:

• Literature review of neuroanatomical studies.
• Synthesizing research on white matter mass, cortical thickness, and surface area.
• Integrating findings on hemispheric differences, functional lateralization, and perceptual deficits.

Main Results:

• A model where white matter growth drives tangential cortical expansion.
• Cortical expansion inversely affects cortical thickness and surface area.
• Cortical surface area correlates with afferent signal differentiation capacity.

Conclusions:

• Abnormal cortical structure and lateralization may lead to perceptual deficits.
• Perceptual deficits are linked to "loose associations" and schizophrenia.
• The model provides a framework for understanding brain growth, creativity, and mental disorders.