関連する実験動画

Updated: Jun 14, 2026

Induction of an Isoelectric Brain State to Investigate the Impact of Endogenous Synaptic Activity on Neuronal Excitability In Vivo
10:19

Induction of an Isoelectric Brain State to Investigate the Impact of Endogenous Synaptic Activity on Neuronal Excitability In Vivo

Published on: March 31, 2016

感覚ニューロンの意思決定関連の活動は,ニューロンの因果効果以上のことを反映しています

Hendrikje Nienborg1, Bruce G Cumming

  • 1Laboratory of Sensorimotor Research, National Eye Institute, National Institutes of Health, 49 Convent Drive, Bethesda, Maryland 20892, USA. hnienb@gmail.com

Nature
|March 10, 2009
PubMed
まとめ

感覚ニューロン騒音だけでなく,上から下の脳プロセスは,知覚的な意思決定に影響を与えます. これは,複雑な認知相互作用が,単純な感覚的選択を形作ることを示唆しています.

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In-Vivo Calcium Imaging of Sensory Neurons in the Rat Trigeminal Ganglion04:39

In-Vivo Calcium Imaging of Sensory Neurons in the Rat Trigeminal Ganglion

Published on: February 9, 2024

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A postsynaptic neuron usually receives numerous impulses from several other presynaptic neurons. The axon hillock of the postsynaptic neuron integrates all these signals and determines the likelihood of firing an action potential.
Sometimes a single EPSP is strong enough to induce an action potential in the postsynaptic neuron. However, multiple presynaptic inputs must often create EPSPs around the same time for the postsynaptic neuron to be sufficiently depolarized to fire an action potential.
Action Potential01:14

Action Potential

Neurons communicate by firing action potentials—the electrochemical signal that is propagated along the axon. The signal results in the release of neurotransmitters at axon terminals, thereby transmitting information to the nervous system. An action potential is a specific "all-or-none" change in membrane potential that results in a rapid spike in voltage.
Membrane potential in neurons
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