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World J Psychiatry. 2016 Mar 22;6(1):18-30. doi: 10.5498/wjp.v6.i1.18. eCollection 2016 Mar 22.

Neuronal networks in mental diseases and neuropathic pain: Beyond brain derived neurotrophic factor and collapsin response mediator proteins.

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1
Tam T Quach, Jessica K Lerch, Department of Neuroscience, Center for Brain and Spinal Cord Repair, the Ohio State University, Columbus, OH 43210, United States.

Abstract

The brain is a complex network system that has the capacity to support emotion, thought, action, learning and memory, and is characterized by constant activity, constant structural remodeling, and constant attempt to compensate for this remodeling. The basic insight that emerges from complex network organization is that substantively different networks can share common key organizational principles. Moreover, the interdependence of network organization and behavior has been successfully demonstrated for several specific tasks. From this viewpoint, increasing experimental/clinical observations suggest that mental disorders are neural network disorders. On one hand, single psychiatric disorders arise from multiple, multifactorial molecular and cellular structural/functional alterations spreading throughout local/global circuits leading to multifaceted and heterogeneous clinical symptoms. On the other hand, various mental diseases may share functional deficits across the same neural circuit as reflected in the overlap of symptoms throughout clinical diagnoses. An integrated framework including experimental measures and clinical observations will be necessary to formulate a coherent and comprehensive understanding of how neural connectivity mediates and constraints the phenotypic expression of psychiatric disorders.

KEYWORDS:

Bipolar; Collapsin response mediator proteins; Depression; Network; Neuron; Pain; Schizophrenia; Stress; Synapse

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