PSYCH261 Lecture Notes - Lecture 14: Chemical Synapse, Axon Terminal, Autocrine Signalling

• School: University of Waterloo
• Department: Psychology
• Course: PSYCH261
• Professor: Christopher Lee

Document Summary

The process by which inhibitory and excitatory postsynaptic potentials summate and control the rate of firing of a neuron. Epsp = increase the likelihood to have an action potential. Ipsp = decrease the likelihood to have an action potential. Neural inhibition does not always produce behavioural inhibition: e. g. sometimes when active, they inhibit a behaviour so when inhibited they actually make the behaviour more likely, excitation of neurons that inhibit behaviour will result in inhibited behaviour. A receptor molecule located on a neuron that responds to the neurotransmitter released by that neuron. Respond to the neurotransmitter that the cell itself already released (responds to itself. Regulate internal processes, including synthesis and release of neurotransmitters: metabotropic receptors. The action of a presynaptic terminal button in an axoaxonic synapse; reduces the amount of neurotransmitter released by the postsynaptic terminal button. The action of a presynaptic termnal button in an axoaxonic synapse; increases the amount of neurotransmitter released by the postsynaptic terminal button.