PSYC32H3 Lecture Notes - Lecture 4: Reticular Formation, Medulla Oblongata, Corticospinal Tract
Document Summary
Lesions: localized abnormal tissue, syndrome: a cluster of deficits that tend to occur together with some regularity, nuclei: a group of specialized neurons. Injury: drowsiness -> coma: pons, contains major pathways between cerebrum and cerebellum, pons + cerebellum = postural and kinesthetic sense. Testing the integrity of the hindbrain: coma scale and score, cerebellum, widespread connections with subcortical and cortical regions, multitude of responsibilities. Injury/pathology is commonly accompanied by impairment in fine motor control and posture as well as vertigo and nystagmus. The forebrain (diencephalic structures: thalamus, contains 11 or more circumscribed nuclei, co(cid:373)ple(cid:454) widespread circuitr(cid:455) (cid:862)se(cid:374)sor(cid:455) rela(cid:455) ce(cid:374)ter(cid:863) Injury: symptoms vary widely (tactile disturbance, unilateral neglect, heightened pain, anterograde and retrograde amnesia: hypothalamus, nuclei that regulate physiology based drives (sexual arousal, rage, fear, hunger, thirst, basal ganglia. Includes amygdala and two phlogenetically old regions: cingulate and hippocampus as well as others extending to the brain stem.
