PSYC 4750 Chapter Notes - Chapter 3: Muscle Tone, Nucleus Accumbens, Reticular Formation
28 Sep 2016
School
Department
Course
Professor
Document Summary
Chapter 3 the motivated and emotional brain. Hypothalamus monitors how much is in the blood: when ghrelin levels rise hypothalamus detects msg from stomach, this message psychological experience of hunger. Experiment ghrelin continues to rise after diet was over. Diet educed food deprivation leads body to generate counterforce spke in ghrelin. Fat tissues release leptin into blood to stimulate brain activity of satisfaction feeling full. Brain is center of motivation and emotion. Performs functions, and cares about whether you want to do things or not. Three principles: specific brain structures generate specific motivations, hypothalamus hunger. Different part of hypothalamus satiety: damage to integrated neural circuit or neurotransmitter pathway can increase or decrease specific motivational states, biochemical agents stimulate specific brain structures, brains have receptor sites that allow the to be stimulated. Biochemical agents that stimulate them neurotransmitters & hormones. Neurotransmitters communication messengers of nervous system allow one neuron to communicate wih another.
