PSYB65H3 Chapter 11: PSYB65 Chapter 11
Document Summary
Filed that develops computer0assisted devices to replace lost biological function. Spinal cord somatosensory information contribute to motor reflexes. Cerebrum somatosensory information complex voluntary movements. Afferent information travels from body inwards via somatic nervous system. Efferent movement information travels out via parallel efferent motor system. Outer part of spinal cord consisting of white matter. Largely of cell bodies and shaped like a butterfly. Spinal cord lies within small bones (ie. vertebrae) Each segment corresponds to region called dermatome; segmentation of body. Motor cortex lies i(cid:374) fro(cid:374)tal lo(cid:271)e just a(cid:374)terior to (cid:271)rai(cid:374)"s (cid:272)e(cid:374)tral fissure. Sensory cortex lies posterior to central fissure; extends into parietal lobe. Controlling more complex aspects of behaviour by acting through lower levels. 3 major levels: forebrain, brainstem, spinal cord. Adoptio(cid:374) of hierar(cid:272)hi(cid:272)al orga(cid:374)izatio(cid:374) fro(cid:373) dar(cid:449)i(cid:374)"s e(cid:448)olutio(cid:374)ar(cid:455) theor(cid:455). Motor sequence movement modules preprogrammed by brain and produced as a unit. One sequence held in readiness while ongoing sequence is being completed. Ie. instructions are sent here from prefrontal cortex.
