Chapter 2 Flashcards
Affect
Conscious, subjective aspect of an emotion that accompanies an action at a given time.
Agonist
Chemical substance that effectively increases the activity of a neurotransmitter by imitating its effects.
Antagonist
In neuroscience, a chemical substance that decreases or blocks the effects of a neurotransmitter.
Brain Circuits
Neurotransmitter currents or neural pathways in the brain.
Cognitive Science
field of study that examines how humans and other animals acquire, process, store, and retrieve information.
Diathesis-Stress Model
Hypothesis that both an inherited tendency (a vulnerability) and specific stressful conditions are required to produce a disorder.
Dopamine
Neurotransmitter whose generalized function is to activate other neurotransmitters and to aid in exploratory and pleasure-seeking behaviors (thus balancing serotonin). A relative excess of dopamine is implicated in schizophrenia (although contradictory evidence suggests the connection is not simple), and its deficit is involved in Parkinson’s disease.
Emotion
Pattern of action elicited by an external event and a feeling state, accompanied by a characteristic physiological response.
Epigenetic
The study of factors other than inherited DNA sequence, such as new learning or stress, that alter the Phenotypic expression of genes.
Equifinality
Developmental psychopathology principle that a behavior or disorder may have several causes.
Fight or Flight Response
Biological reaction to alarming stressors that musters the body’s resources (for example, blood flow and respiration) to resist or flee a threat.
GABA (Gamma-AminoButyric Acid)
Neuro transmitter that reduces activity across the synapse and thus inhibits a range of behaviors and emotions, especially generalized anxiety.
Genes
Long deoxyribonucleic acid (DNA) molecules, the basic physical units of heredity that appear as locations on chromosomes.
Glutamine
Amino acid neurotransmitter that excites many different neurons, leading to action.
Hormone
Chemical messenger produced by the endocrine glands.