inhibitory postsynaptic potentials (IPSPs)

Inhibitory postsynaptic potentials (IPSPs) are signals in the brain that reduce the likelihood of a neuron firing an action potential, which is how neurons communicate. When a neurotransmitter binds to special receptors on a neuron, it can lead to hyperpolarization, making the inside of the neuron more negatively charged. This process opposes the excitatory signals that promote firing. Essentially, IPSPs help to balance brain activity by preventing excessive firing of neurons, playing a crucial role in regulating mood, movement, and overall neural communication. They are vital for maintaining a healthy and functional nervous system.