Psychology 2030A/B Lecture Notes - Lecture 2: Central Nervous System, Peripheral Nervous System, Corpus Callosum

• School: Western University
• Department: Psychology
• Course: Psychology 2030A/B
• Professor: David Vollick

Document Summary

Two main parts of the nervous system: central nervous system (cns): brain and spinal cord, peripheral nervous system (pns, translational research. Cell body sends signals through axon which causes axon terminals to release neurotransmitters which will activate or inhibit the next cell body (fig 2. 1) Brain stem (controls fundamental functions, e. g. breathing) Medulla, pons, and cerebellum (regulate breathing, heartbeat, and motor control, balance) Mid(cid:271)rai(cid:374) a(cid:271)o(cid:448)e the po(cid:374)s (cid:894)(cid:272)oordi(cid:374)ates se(cid:374)sor(cid:455) i(cid:374)for(cid:373)atio(cid:374) a(cid:374)d (cid:373)o(cid:448)e(cid:373)e(cid:374)t(cid:895) Thala(cid:373)us (cid:894)(cid:271)rai(cid:374)"s rela(cid:455) statio(cid:374), dire(cid:272)ti(cid:374)g (cid:374)er(cid:448)e sig(cid:374)als that (cid:272)arr(cid:455) se(cid:374)sor(cid:455) i(cid:374)for(cid:373)atio(cid:374) to the cortex) Fore(cid:271)rai(cid:374) (cid:272)ere(cid:271)ral (cid:272)orte(cid:454) plus: limbic system, a(cid:373)(cid:455)gdala, (cid:272)i(cid:374)gulate g(cid:455)rus, a(cid:374)d hippo(cid:272)a(cid:373)pus deals pri(cid:373)aril(cid:455) (cid:449)/ e(cid:373)otio(cid:374)s and impulses, hippo(cid:272)a(cid:373)pus (cid:373)e(cid:373)or(cid:455) for(cid:373)atio(cid:374) li(cid:374)ked (cid:449)/ (cid:373)e(cid:373)or(cid:455) defi(cid:272)its, basal ganglia, may inhibit movement. Higher cognitive functioning (reasoning, abstract thought, perception of time, and creativity) Two hemispheres: left side: language, cognitive functioning (processes in linear and logical manner, right side: spatial, creativity, and intuition (processes in a holistic manner, each hemisphere consists of four lobes.