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Propagation of Action Potentials

Propagation of Action Potentials

The propagation of an action potential refers to the process by which a nerve impulse, or "action potential," travels along a neuron.
Neurons (nerve cells) have a resting membrane potential, with a slightly negative charge inside compared to outside. This is maintained by ion channels, such as sodium (Na+) and potassium (K+) channels, which control the flow of ions. When a stimulus, like a touch or a signal from another neuron, triggers the neuron, sodium channels open, allowing sodium ions to...

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Updated: Jan 8, 2026

Corticospinal Excitability Modulation During Action Observation

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Published on: December 31, 2013

Modulación presacádica de interacciones laterales

Gabriela Mueller de Melo^1,2,3,4, Isabella de Oliveira Pitorri^1,5, Gustavo Rohenkohl^1,6,2,7,8

¹Active Vision Lab, Institute of Biosciences, University of São Paulo, São Paulo, Brazil.

Journal of vision

|December 12, 2025

Resumen

Este resumen es generado por máquina.

La preparación sacádica mejora la inhibición lateral en la visión temprana, aumentando la supresión de objetivos a distancias intermedias. Esta modulación ayuda a priorizar la información visual saliente suprimiendo las señales periféricas homogéneas antes de los movimientos oculares.

Palabras clave:

inhibición lateral movimientos sacádicos percepción visual atención visual umbral de contraste

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