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Scaling brain size, keeping timing: evolutionary preservation of brain rhythms.

Neuron

Periodicity, Animals, Biological Evolution, Brain, anatomy & histology, physiology, Brain Mapping, Brain Waves, genetics, Evoked Potentials, Humans, Models, Neurological, Nerve Fibers, ultrastructure, Neural Pathways, Organ Size

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      Abstract

      Despite the several-thousand-fold increase of brain volume during the course of mammalian evolution, the hierarchy of brain oscillations remains remarkably preserved, allowing for multiple-time-scale communication within and across neuronal networks at approximately the same speed, irrespective of brain size. Deployment of large-diameter axons of long-range neurons could be a key factor in the preserved time management in growing brains. We discuss the consequences of such preserved network constellation in mental disease, drug discovery, and interventional therapies. Copyright © 2013 Elsevier Inc. All rights reserved.

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      Journal
      24183025
      4009705
      10.1016/j.neuron.2013.10.002

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