PSYC12H3 Lecture Notes - Lecture 6: Functional Magnetic Resonance Imaging, Transcranial Magnetic Stimulation, Positron Emission Tomography
Document Summary
Psyc18 chapter 6 notes: brain mechanisms and emotions. Describes treatment of survivors of the sleeping sickness (encephalitis lethargica) Started in europe and spread around the world. Virus that caused an attack on the striatal regions of the brain (where the dopamine receptors are) Sacks described how the drug l-dopa gave people awakenings from their suspended animation. The cerebellum is involved in motor coordination and automatic movements. Hypothalamus regulates important bodily functions (eating, sexual behaviour, body temperature) The forebrain also includes the limbic system (which has the amygdala and cerebral cortex) frontal lobes of cortex are involved in decision making, intentional action and emotion regulation. Recall: walter cannon"s experiment w/ cats (chapter one) Severing the cerebral cortex in cats results in impulsive actions and ill directed attacks, otherwise known as sham rage . The findings assumed that the cortex inhibits emotional expression. Maclean"s theory of systems involved in vertebrate evolution:
