PSYC 2307 Study Guide - Midterm Guide: Neurotransmitter, Ligand-Gated Ion Channel, Axon Hillock

• School: Carleton University
• Department: Psychology
• Course: PSYC 2307
• Professor: Brian Tansley

Document Summary

They (cid:272)a(cid:374) pro(cid:272)ess i(cid:374)for(cid:373)atio(cid:374) (cid:271)y (cid:272)reati(cid:374)g (cid:862)(cid:272)ir(cid:272)uits(cid:863) (cid:862)neuro(cid:374)s that fire together, (cid:449)ire together(cid:863) Communication occur between neurons by sending signals across synapses. All information is carried by ap the (cid:374)er(cid:448)ous syste(cid:373) is (cid:862)(cid:374)oisy(cid:863) Not all ap contain information i(cid:374) (cid:373)ost (cid:374)euro(cid:374)s there is a s(cid:373)all (cid:374)u(cid:373)(cid:271)er of (cid:862)spo(cid:374)ta(cid:374)eous(cid:863) aps are produced every second. Information flows within a ns (communication between neurons occurs) when the rate of ap production in the receiving neuron is above or below the (cid:862)resti(cid:374)g le(cid:448)el(cid:863) Stronger stimulus will cause a neuron to fire more often compared to a weaker stimulus. Synaptic transmission the use of neurotransmitters to send signals from presynaptic membrane to post synaptic membrane via interactions within the synapse. Alters the post-sy(cid:374)apti(cid:272) (cid:373)e(cid:373)(cid:271)ra(cid:374)e"s io(cid:374)i(cid:272) per(cid:373)ea(cid:271)ility (ope(cid:374)i(cid:374)g or (cid:272)losi(cid:374)g (cid:272)ha(cid:374)(cid:374)els o(cid:374) the post-synaptic membrane) The binding of nts on post-synaptic membrane can cause excitatory post-synaptic potentials (epsps) or inhibitory post-synaptic potentials (ipsps)