Chapter 10 Flashcards
Lecture 4
affective neuroscience
the subfield within cognitive neuroscience that is concerned with understanding emotional
aspects of brain function
limbic system theory
The theory, developed by Paul MacLean in the 1940’s, positing that structures of the limbic forebrain constitute a system that generates emotions.
posttraumatic stress disorder (PTSD)
emerges following
exposure to a traumatic stressor that elicits feelings of fear, horror, or helplessness in response to bodily injury or threat of death to oneself or another person
emotion
A set of physiological responses, action tendencies, and subjective feelings that adaptively engage humans and other animals to react to events of biological and/or individual significance.
Basic emotions
taken to be innate, pan-cultural, evolutionarily old, shared with other species, and expressed by particular physiological patterns and facial configurations
complex emotions
are learned, socially and culturally shaped, evolutionarily new, most evident in humans, and typically expressed by combinations of the response patterns that characterize basic emotions
arousal
the physiological and/or subjective intensity of the emotion
valence
The degree of pleasantness of a stimulus
vector models
A way to graphically represent the relationships among emotions by ordering them along two orthogonal axes of positive and negative valence
circumplex model
A way to graphically represent the relationships among emotions by ordering them along the circumference of a circle formed by intersecting two orthogonal axes of valence and arousal at the circle’s center
What are the three information-processing stages?
(1) the evaluation of sensory input;
(2) the conscious experience of a feeling state;
(3) the expression of behavioral and physiological responses
startle response
a protective musculoskeletal reflex elicited by intense and unexpected sensory stimuli (e.g., a flash of light or a loud noise). Such stimuli interrupt ongoing thoughts and behavior to evaluate the location and significance of the sensory input
parasympathetic division
Sometimes referred to as the “rest and digest” system. The component of the autonomic motor system that mediates restorative metabolic functions.
sympathetic division
Sometimes referred to as the “fight or flight” system. The component of the autonomic motor system that contributes to the mobilization of energy to prepare the body for action.
James-Lange theory
A theory, developed by William James and Carl Lange in the 1880’s, positing that emotions are determined by the pattern of feedback from the body periphery to the cerebral cortex.
hypothalamus
A collection of small but critical nuclei in the diencephalon that lies just inferior to the thalamus;
governs reproductive, homeostatic, and circadian functions.
thalamus
A collection of nuclei that forms the major component of the diencephalon. Has many functions;
a primary role is to relay sensory information from the
periphery to the cerebral cortex.