Week 5: Behavioural Psychotherapy: US Tradition of Behavioural Psychotherapy Flashcards
US Tradition of Behavioural Psychotherapy
- Primary Influence: B.F. Skinner
- Methods: Operant Conditioning, Reinforcement
- AKA: Behaviour Modification
- Settings: Psychiatric and other long-stay institutions
- Targets: Reduction in challenging behaviours and encouraging desired behaviours
Challenging Behaviours
Self-injury/self-harm or eating non-food objects, aggression that might harm others, or behaviour that was seen as disruptive, such as soiling, refusal to wear
clothes, and prolonged screaming/shouting
Three-Term or ABC Contingency
Antecedent: The event that precedes a behavior (Discriminative Stimulus)
Behavior: The action itself (Response)
Consequence: The outcome of the behavior (Reinforcer)
Functional
Term used because we assume that the behaviour in question has a specific function or purpose for that individual, to either gain a positive outcome or avoid a negative one.
Functional Analysis / Applied Behavioural Analysis / Functional Assessment
This approach focuses on identifying the function of a behavior that tends to fall into two broad categories, either to obtain or access something positive for the individual or to escape or avoid
something negative.
Function of Behaviour to Obtain Something Positive
Attention-seeking: Behavior that elicits attention from others.
Tangible rewards: Behavior that leads to tangible items (e.g., food).
Sensory stimulation: Behavior that provides sensory input (i.e., rocking, shouting, self-harm)
Function of Behaviour to Avoid/Escape Something Negative
Escape from demands: Behavior that allows avoidance of unpleasant tasks or situations (i.e., chores)
Avoidance of social situations: Behavior that prevents interaction with others.
FAST (Functional Assessment Screening Tool)
16-item questionnaire developed by Brian Iwata and colleagues at the University of Florida for use with children with autism in the home, school, or other settings.
It provides an easy means of doing a preliminary, indirect
analysis, based on reports of informants, rather than direct observation.
Full Behavioural or Functional Analysis
A systematic approach that is typically based on:
- careful, direct observation over a period of time
- record-keeping using ABC charts.
- careful training to use such tools accurately and reliably
ABC Model of Behaviour Modification
Antecedent-based interventions: Modify the environment to reduce triggers for the unwanted behavior.
Behavior-based interventions: Teach new skills to provide alternative ways to achieve the same goal.
Consequence-based interventions: Change the outcomes of the behavior to reduce its reinforcement.
Antecedent-based (stimulus) interventions
- Reduce individual’s exposure to trigger
- If a reduction in unwanted behaviour is observed, intervention = successful
- Simpler and easier to implement
Behavior-based (skill) interventions
- Provide new effective skills or new tools to deal with situations
- Costly in time + effort to implement
Consequence-based (outcome) interventions
- Behaviour will eventually stop if attention is no longer given
- Hard to apply and neglects the underlying purpose of the behaviour
Extinction
Removing the reinforcement that maintains an unwanted behavior. Over time, the behavior will decrease in frequency and eventually stop altogether.
Challenge: Behaviour may increase initially before it subsides. It’s important to be consistent with extinction for it to be effective.
Extinction Bursts
A temporary increase in the frequency, intensity, or duration of behavior when reinforcement is withheld.