Electrophysiology Of The Neuron 💯 Free Access

: Voltage-gated sodium channels snap open, allowing Na+cap N a raised to the positive power to flood into the cell, making it more positive.

: Sodium channels close and potassium channels open, allowing K+cap K raised to the positive power to exit and bringing the voltage back down. Electrophysiology of the Neuron

). This triggers an , a rapid spike in electrical activity that travels down the axon. : Voltage-gated sodium channels snap open, allowing Na+cap

: The voltage briefly dips below the resting level before stabilizing. : Voltage-gated sodium channels snap open

This process is "all-or-nothing"—the signal doesn't get "stronger" with more stimulus; instead, the neuron fires more frequently . How We Study the Brain's Electricity

Researchers use several cutting-edge techniques to "listen" to these electrical conversations: Unlocking Brain Function, One Neuron at a Time