GABAergic synapses: their plasticity and role in sensory cortex.
Trevor C Griffen1, Arianna Maffei2
1SUNY Eye Research Consortium Buffalo, NY, USA ; Program in Neuroscience, SUNY - Stony Brook Stony Brook, NY, USA ; Medical Scientist Training Program, SUNY - Stony Brook Stony Brook, NY, USA.
Frontiers in Cellular Neuroscience
|April 12, 2014
Summary
GABAergic neurons, though a minority in the mammalian neocortex, exhibit diverse properties. This review explores their roles in shaping sensory cortical circuit activity and function.
Area of Science:
- Neuroscience
- Cell Biology
Background:
- The mammalian neocortex features diverse, interconnected cell types.
- GABAergic neurons constitute ~20% of cortical neurons but are highly diverse.
- These inhibitory neurons display varied morphology, location, electrophysiology, and gene expression.
Purpose of the Study:
- To review experimental evidence on GABAergic neuron properties in the primary sensory cortex.
- To discuss the contribution of distinct GABAergic neuron populations to cortical function.
- To explore the role of GABAergic inhibitory plasticity in sensory processing.
Main Methods:
- Review of existing experimental data.
- Analysis of literature on GABAergic neuron properties.
- Synthesis of findings on inhibitory neuron diversity and function.
Main Results:
- GABAergic neurons exhibit significant diversity in their characteristics.
- Distinct inhibitory neuron populations possess unique sensory response properties.
- These neurons show varying capacities for plasticity and sensitivity to sensory experience.
Conclusions:
- Diverse GABAergic neurons play a crucial role in sensory cortical circuits.
- Different forms of GABAergic inhibition and plasticity shape cortical activity.
- Understanding these inhibitory mechanisms is key to comprehending sensory processing.
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