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Plasticity of dendritic excitability
Andreas Frick1, Daniel Johnston
1Baylor College of Medicine, Division of Neuroscience, Houston, Texas 77030, USA. Andreas.Frick@mprimf-heidelberg.mpg.de
Journal of Neurobiology
|May 11, 2005
Summary
Dendrites possess ion channels that enable neuronal plasticity, altering information processing. This review explores how changes in dendritic excitability impact neural networks in health and disease.
Area of Science:
- Neuroscience
- Computational Neuroscience
- Cellular Neuroscience
Background:
- Dendrites contain numerous voltage-gated ion channels crucial for neuronal computation and memory.
- Dendritic excitability and function exhibit plasticity, adapting to various physiological and pathological states.
Purpose of the Study:
- To review the mechanisms underlying dendritic excitability plasticity.
- To discuss the impact of this plasticity on information processing in neurons and neural networks.
Main Methods:
- Literature review of studies on voltage-gated ion channels in dendrites.
- Analysis of molecular and cellular mechanisms driving dendritic plasticity.
- Discussion of computational and network-level consequences.
Main Results:
- Activity-dependent alterations in ion channel properties and expression drive dendritic plasticity.
- Neurotransmitters, neuromodulators, and second messengers are key regulators of this plasticity.
- Plasticity in dendritic excitability significantly affects neuronal integration and network dynamics.
Conclusions:
- Dendritic plasticity is a fundamental mechanism for neural adaptation, learning, and memory.
- Dysregulation of dendritic excitability contributes to neurological disorders.
- Understanding dendritic plasticity is vital for deciphering brain function and dysfunction.