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Functional and dysfunctional synaptic plasticity in prefrontal cortex: roles in psychiatric disorders
Yukiori Goto1, Charles R Yang, Satoru Otani
1Department of Psychiatry, McGill University, Montreal, Quebec H3A 1A1, Canada. yukiori.goto@mcgill.ca
Biological Psychiatry
|October 17, 2009
Summary
The prefrontal cortex (PFC) supports key cognitive functions. Emerging evidence indicates PFC neurons exhibit synaptic plasticity, challenging prior beliefs and suggesting implications for neurological disorders.
Area of Science:
- Neuroscience
- Cognitive Neuroscience
- Cellular Neuroscience
Background:
- The prefrontal cortex (PFC) is crucial for higher-order cognitive functions like working memory, attention, and planning.
- Traditionally, PFC functions were considered independent of long-lasting neuronal adaptations, unlike the hippocampus.
- Recent findings suggest PFC neurons possess mechanisms for synaptic plasticity.
Purpose of the Study:
- To explore the role of synaptic plasticity in prefrontal cortex functions.
- To investigate the cellular basis of cognitive processes mediated by the PFC.
- To understand the potential link between PFC synaptic plasticity deficits and neurological disorders.
Main Methods:
- Review of accumulating evidence on prefrontal cortical neuronal activity.
- Analysis of cellular mechanisms underlying synaptic plasticity in the PFC.
- Correlation of synaptic plasticity deficits with psychiatric and neurological conditions.
Main Results:
- Prefrontal cortical neurons possess the cellular machinery for synaptic plasticity.
- Lasting changes in neural activity within the PFC are associated with cognitive processes.
- Deficits in PFC synaptic plasticity mechanisms are implicated in various disorders.
Conclusions:
- Prefrontal cortex cognitive functions may involve long-lasting neuronal adaptations.
- Synaptic plasticity in the PFC is a critical area for understanding cognitive function.
- Dysregulation of PFC synaptic plasticity could underlie conditions like schizophrenia and Alzheimer's disease.
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