Dozois 2- Theoretical Perspectives on Abnormal Behavior Flashcards
attempts to trace the origins of a particular disorder to one factor.
Single-factor explanation
Aims of theories about mental disorders are:
1) explain the etiology (that is the causes or origins of the problem behavior
2) identify the factors that maintain the behavior
3) predict the course of the disorder
4) design effective treatments
possible etiology of mental disorders:
Biological, psychodynamic (derived from Freud), behavioral or cognitive-behavioral theories, cognitive theories examining dysfunctional thoughts or beliefs, humanistic, socio-cultural influences
chemical substances that carry the messages from one neuron to the next in the complex pathways of nervous activity within the brain
Neurotransmitters
Abnormal behavior can result from disturbances in neurotransmitter systems in various ways:
(Any or all of these problems can cause either too much excitement or too much inhibition int he particular brain circuits and this excessive or reduced activity may result in abnormal functioning.)
1) there may be too much or too little of the neurotransmitter produced or released into the synapse
2) there may be too few or too many receptors on the dendrites
3) there may be an excess or a deficit in the amount of the transmitter-deactivating substance in the synapse
4) the reuptake process may be too rapid or too slow.
The incredible capacity of the brain to reorganize its circuitry
Brain plasticity
The automatic nervous system (ANS) has two parts:
sympathetic nervous system and the parasympathetic nervous system (These two systems typically function co-operatively to produce homeostatic (balance) activity in a variety of bodily functions).
offers us an insight into the biological bases of abnormal functioning
behavioral genetics
genes may influence behaviors that contribute to environmental stressors, which, in turn, increase the risk of psychopathology
gene-environment (genotype environment) interaction
Recent techniques for studying genetic influences
genetic linkage studies, molecular biology
Ego employs at an unconscious level, a kind of censoring system to allow expression of libidinal desires in a distorted or symbolic form. (e.g., denial- Refusal to acknowledge an unpleasant reality).
defence mechanisms
behavioral theory described by Pavlov as the basis for this learning
classical conditioning
Skinner- consequences of behavior are important- All actions are followed by consequences of one kind or another Reinforcement/punishment
operant conditioning
majority of these experiences occur within social context and are primarily. acquired vicariously
Social learning theory (Bandura & Walters)
A theory that reflects the view that both thinking and behaviour are learned and can be changed
cognitive-behavioural theory