In neuroscience, an excitatory postsynaptic potential (EPSP) is a postsynaptic potential that makes the postsynaptic neuron more likely to fire an action potential.

An excitatory postsynaptic potential (EPSP) occurs when sodium channels open in response to a stimulus. The electrochemical gradient drives sodium to rush into the cell.

PSPs are called excitatory (or EPSPs) if they increase the likelihood of a postsynaptic action potential occurring, and inhibitory (or IPSPs) if they decrease this likelihood.

Nov 21, 2024 · Postsynaptic potentials refer to changes observed in the resting potential of the neuronal cell membrane triggered by synaptic activation. In its resting state, the cell membrane maintains a …

Postsynaptic potentials are graded potentials in the postsynaptic membrane resulting from the effects of a neurotransmitter. An excitatory postsynaptic potential (EPSP) is a graded depolarization caused by …

Excitatory postsynaptic potentials (EPSP) bring the neuron’s potential closer to its firing threshold. Inhibitory postsynaptic potentials (IPSP) change the charge across the membrane to be further from …

Jul 24, 2025 · An excitatory postsynaptic potential, or EPSP, represents a temporary shift in the electrical charge across a neuron’s membrane. This change makes the receiving neuron more likely …

EPSPs are generated when excitatory neurotransmitters, such as glutamate, bind to receptors on the postsynaptic membrane, causing an influx of positively charged ions (typically sodium) into the …

An excitatory postsynaptic potential (EPSP) is the change in membrane voltage of a postsynaptic cell following the influx of positively charged ions into a cell (typically Na+) as a result of the activation of …

The ionic mechanisms for the EPSP in the spinal motor neuron are essentially identical to the ionic mechanisms for the EPSP at the neuromuscular junction. Specifically, the transmitter substance …