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Updated: Apr 22, 2026
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Induction of an Isoelectric Brain State to Investigate the Impact of Endogenous Synaptic Activity on Neuronal Excitability In Vivo
Published on: March 31, 2016
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Neural control of brain state.
Edward Zagha1, David A McCormick1
1Department of Neurobiology, Kavli Institute for Neuroscience, Yale University School of Medicine, 333 Cedar Street, New Haven, CT 06510, United States.
Current Opinion in Neurobiology
|October 14, 2014
Summary
Brain states, influenced by neurotransmitters, control neural processing. Fast-acting pathways like glutamatergic projections precisely regulate brain activity for normal and abnormal nervous system function.
Area of Science:
- Neuroscience
- Computational Neuroscience
- Systems Neuroscience
Background:
- Brain function relies on dynamic brain states, which are constantly fluctuating.
- Understanding brain state control is crucial for comprehending nervous system operations, both in health and disease.
- While neuromodulatory systems are known to influence brain states, the role of fast-acting neurotransmitters is increasingly recognized.
Purpose of the Study:
- To investigate the role of fast-acting neurotransmitter pathways in precise control of neural processing.
- To elucidate how corticocortical and thalamocortical glutamatergic projections influence brain states.
Main Methods:
- Analysis of ongoing brain activity.
- Investigation of neural processing gain and precision.
- Focus on glutamatergic projections in corticocortical and thalamocortical pathways.
Main Results:
- Fast-acting neurotransmitter pathways, particularly glutamatergic projections, enable temporally and spatially precise control of neural processing.
- These pathways rapidly and precisely modulate brain state by altering ongoing neural activity.
- Glutamatergic pathways also control the gain and precision of neural responses.
Conclusions:
- Fast-acting neurotransmitter systems are critical for fine-tuning brain states and neural processing.
- Precise control of brain state by glutamatergic pathways is essential for normal and abnormal nervous system function.
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