PSY346H5 Study Guide - Midterm Guide: Gabaa Receptor, Excitotoxicity, Kainic Acid
Document Summary
Grey matter = cell bodies & processes. Areas of brain communicate with one another(2 hemispheres) through corpus callosum. Fibrous projections to all areas of brain. Defi(cid:374)es itself (cid:271)ased o(cid:374) (cid:449)hat it(cid:859)s (cid:272)o(cid:373)posed of. How much of neocortex devoted to corpus callosum: 1/3. All incoming sensory input 1st goes through thalamus b4 sent to other brain areas. O(cid:374)l(cid:455) (cid:1005)(cid:1004)% i(cid:374)put is (cid:858)feed for(cid:449)ard(cid:859) a(cid:272)ti(cid:448)it(cid:455). 9(cid:1004)% of all other a(cid:272)ti(cid:448)it(cid:455) i(cid:374) thala(cid:373)us is dire(cid:272)t result of feedback (can regulate attention) from higher cortical areas. Gatekeeper for cortex: cortex instructs thalamus what data to let in (sensory input data) Hypothalamus (contains # of small nuclei) links nervous system to endocrine system via pituitary links to behaviour. Egulate (cid:1008) f(cid:859)s of (cid:271)eha(cid:448)iour: fleei(cid:374)g, fighti(cid:374)g, foraging, fornicating. Receives input from thalamus & neocortex transmits to other brain areas. Connecting pathway part of limbic system (primitive, key elements) Tegmentum rich source/origin of neurotransmitters in ventral tegmentum area.
