PSY100Y5 Study Guide - Final Guide: Medical Necessity, Lateral Hypothalamus, Monosaccharide

• School: UTM
• Department: Psychology
• Course: PSY100Y5
• Professor: Urbszat Dax

Document Summary

There is an association between stomach contractions and the experience of hunger. To(cid:373)a(cid:272)h (cid:272)o(cid:374)t(cid:396)a(cid:272)tio(cid:374)s ofte(cid:374) a(cid:272)(cid:272)o(cid:373)pa(cid:374)(cid:455) hu(cid:374)ge(cid:396), (cid:271)ut the(cid:455) do(cid:374)"t (cid:272)ause it. People continue to experience hunger after their stomachs have been removed out of medical necessity. Hunger theories focus on 1) the role of the brain, 2) blood sugar level, and 3) hormones. Animal research suggested that hunger is controlled by the brain- thalamus (regulation of a variety of biological needs related to survival) Whe(cid:374) a(cid:374)i(cid:373)al"s late(cid:396)al h(cid:455)pothala(cid:373)us is lesio(cid:374)ed(cid:894)dest(cid:396)o(cid:455)ed(cid:895) the(cid:455) sho(cid:449)ed (cid:374)o i(cid:374)te(cid:396)est i(cid:374) eati(cid:374)g. Lateral and ventromedial areas of the hypothalamus are elements in the neural circuitry that regulate hunger but are not key elements and not simple on-off centers. Food taken into the body is converted into glucose, which circulates in the blood. Glucose is a simple sugar that is an important source of energy. Manipulations that increase glucose level can make people feel satiated. Glucostats are neurons sensitive to glucose in the surrounding fluid.