PSY-B - Psychology PSY-B 320 Lecture Notes - Lecture 3: Golgi'S Method, Nerve Net, Dendritic Spine

• School: IUPUI
• Department: PSY-B - Psychology
• Course: PSY-B - Psychology PSY-B 320
• Professor: Cristine Czachowski

Document Summary

Principle 1: the nervous system produces movement within a perceptual world the brain creates. Individual realities are rough approximations of what is actually present. The behavior that the brain produces is directly related to the world that the brain has created. Principle 2: the details of nervous-system functioning are constantly changing, an attribute called. E(cid:454)pe(cid:396)ie(cid:374)(cid:272)e alte(cid:396)s the (cid:271)(cid:396)ai(cid:374)"s o(cid:396)ga(cid:374)izatio(cid:374), a(cid:374)d (cid:374)eu(cid:396)oplasti(cid:272)it(cid:455) is (cid:396)e(cid:395)ui(cid:396)ed fo(cid:396) learning and memory functions as well as for survival. Information is stored in the nervous system only if neural connections change. Principle 3: ma(cid:374)(cid:455) of the b(cid:396)ai(cid:374)"s circuits are crossed. Each hemisphere receives sensory stimulation from the opposite (contralateral) side of the body and controls muscles on the contralateral side as well. Principle 4: the central nervous system functions on multiple levels. Simple animals such as worms have a spinal cord, more complex animals such as fish have a brainstem as well, and yet more complex animals have evolved a forebrain.