PSYC 153 Chapter Notes - Chapter all: Functional Magnetic Resonance Imaging, Autonomic Nervous System, Sympathetic Nervous System
Document Summary
Emotions have an e ect, that they are functional in the evolutionary sense. Every emotion is a reaction to a stimulus. Emotions depend on evaluations of external events and their meaning. Emotional state includes 4 aspects: cognition, feeling, physiological changes, and behavior. Self reports: participants descriptions of their emotional feelings. Physiological measurements: include measures of blood pressure, heart rate, sweating, and other variables that. Behaviors: actions we can observe, like facial and vocal expressions, running away, or attacking. Parasympathetic nervous system: facilitates growth and increases maintenance functions that convert energy for later. Electroencephalography (eeg): used to measure momentary changes in the emotional activity within the brain. Functional magnetic resonance imaging (fmri): measures brain activity based on changes in oxygen uptake. If an emotion is basic, people should have a distinct, built in way of expressing it. A basic emotion should be evident in early life. Circumplex model: emotions form a circle de ned by the dimensions of pleasantness and arousal.
