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Peptites
Neuropeptides are small
protein-like molecules
(peptides) used by neurons
to communicate with each
other
Neuropeptides
Neuropeptides modulate neuronal
communication by acting on cell surface
receptors. Many neuropeptides are co-released
with other small-molecule neurotransmitters.
peptides are not
recycled back into the
cell once secreted
Catechol
Adrenaline
Dopamine
Noradrenaline
Involved in:
sleep and wakefulness,
attention, and feeding behavior,
as well as a stress hormone released
by the adrenal glands that regulates
the sympathetic nervous system.
Norepinephrin
e
adrenal stress hormone,
as well as a neurotransmitter
present at lower levels in the brain.
Epinephrine
Involved in:
motivation, reward, addiction,
behavioral reinforcement,
and coordination of bodily
movement.
Dopamine