Excitatory postsynaptic potentials (EPSPs) are changes in the membrane potential of a postsynaptic neuron that make it more likely to fire an action potential. This occurs when neurotransmitters bind to receptors on the postsynaptic membrane, leading to the influx of positively charged ions, such as sodium (Na+), which depolarizes the neuron. EPSPs play a crucial role in neural communication and are fundamental for information processing within neural networks, affecting how signals are integrated and how effectively neurons communicate with each other.
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