PSYCH356 Lecture Notes - Monoamine Oxidase, Behavioral Activation, Impulsivity

• School: University of Waterloo
• Department: Psychology
• Course: PSYCH356
• Professor: Richard Eibach

Document Summary

Acc to eysenck"s theory, extraverts differ from introverts because of differences in their physiological level of arousal in the brain. He proposed that these differences are influenced by the ascending reticular activation system of the brain, the system believed to regulate overall arousal in the cortex. Introverts show greater changes in their brain wave activity in response to low frequency tones, indicating their lower threshold for stimulation to the. Optimal level of arousal: the arousal level that is most appropriate for doing a given task effectively. To calculate differences in the brain"s asymmetry, researchers subtract the level of eeg brain wave activity on the left side of the brain from the lebel of activity on the right side of the brain. A +ve asymmetry measure indicates a relatively higher degree of activity on the right side of the brain; a ve measure indicates a relatively higher degree of activity on the left side of the brain.