Behavioral Medicine General Principles/theory Flashcards
What is shaping?
the production of new forms of operant behavior by reinforcement of successive approximations to the behavior
what are reinforcement schedules?
A rule that are used to present (or to remove) reinforcers (or punishers) following a specified operant behavior.
These rules are defined in terms of the time and/or the number of responses required in order to present (or to remove) a reinforcer (or a punisher).
Different schedules of reinforcement produce distinctive effects on operant behavior.
What is positive reinforcement?
increases frequency of behavior when applied
What is negative reinforcement?
increases the frequency of behavior when removed
What is the impact of punishment with reinforcement schedules
decreases frequency of a behavior
What is a continuous reinforcement schedule?
reinforcement is provided every single time after the desired behavior
What is an interval reinforcement schedule?
require a min amount of time that must pass between successive reinforced responses (E.g., 5min)
Fixed time period between reinforcer (fixed interval)
Variable time period between reinforcer (variable interval)
What is a Fixed-interval schedule?
An exact amount of time passes between each reinforcement
Examples:
studying for a weekly quiz
Getting your paycheck every 2 weeks
What is a variable interval schedule?
A varying amount of time passes between each reinforcement
Examples:
checking email
winning a video game
What are ratio schedules?
require a certain number of operant response (E.g., 10 responses) to produce the next reinforcer.
What is a fixed-ratio schedule?
Reinforcement occurs after a fixed no. of responses
Examples:
Getting one free meal after purchase of 10
losing your driver’s license after 5 violations
What is a variable-ratio schedule?
Reinforcement occurs after a varying no. of responses
Examples:
Playing the lottery
The no. of shots to score a goal in a soccer game
What are partial reinforcement schedules based on?
Can be based on time (interval) or
Can be based on response rate (ratio)
How is Extinction defined in classical/operant conditioning?
Reinforcement of a response is discontinued.
Discontinuation of reinforcement leads to the progressive decline in the occurrence of a previously reinforced response.
If the conditioned stimulus continues to appear in the absence of the unconditioned stimulus, the conditioned response becomes weaker and weaker until it disappears, which is called the extinction procedure.
Extinction inhibits the conditioned response.
It appears that extinction forms new learning separate from the original conditioned learning.
How is spontaneous recovery defined?
Reappearance of the conditioned response (previously extinct conditioned response) after the unconditioned stimulus has been removed for some time
Can occur after classical or operant conditioning
What are characteristics of classical conditioning?
Pavlovian conditioning, suggests that learning occurs through association
2 stimuli are linked together to produce a new learned response
Unconditioned stimulus US (e.g., physical trauma)
Unconditioned response UR (e.g., fear)
Conditioned stimulus CS (e.g., second stimulus paired with US)
Conditioned response CR (elicited by new CS)
What 2 sleep conditions does classical conditioning play a role in?
Insomnia
PAP therapy
How is conditioned insomnia defined?
Bed + Wake, tossing, turning, sleepless, worry, rumination = conditioned insomnia
AKA conditioned arousal
With repeated pairing of bed with wakefulness (high arousal), The bed becomes a cue for arousal and/or wakefulness, rather than sleep
What is the rationale for stimulus control for insomnia?
Cues are associated emotional reactions
The bed/bedroom have become cues for distress/frustration of trying to fall asleep
Internal cues: mind racing, anticipatory anxiety, physiological arousal
External cues: bed, etc.
How is operant conditioning defined?
Behavioral consequence is rewarding if the behavior preceding it increases in frequency
Consequence = reinforcer and punisher will decrease in frequency
Positive reinforcer follows the emission of a behavior
Negative reinforcer terminates the behavior
Antecedent stimuli or setting that are regularly associated with subsequent reinforcers summon operant.
How is discriminative stimuli defined?
If a specified behavior is produced there is an elevated likelihood that reinforcers will follow. These are called discriminative stimuli
What classic experiment demonstrated operant conditioning?
The Skinner Box by BF Skinner
Was a variation of the puzzle box created by Thorndike
The operant conditioning chamber teaches animal to perform certain actions (i.e. pressing a lever) in response to specific stimuli. When correct action is performed animal receives positive reinforcement in form of food or other reward. Chamber may deliver negative reinforcement to discourage incorrect responses.
How do we use operant conditioning in insomnia?
Target behavior=falling asleep, needs to be reinforced
Cues that are associated with the onset of sleep become discriminative stimuli for the occurrence of reinforcement
Difficulty falling asleep due to inadequate stimulus control
Strong discriminative stimuli for sleep may not have been established or discriminative stimuli for activities that interfere with sleep are present
What is the goal with stimulus control?
To learn the bed is a place to fall asleep more quickly
Strengthen the bed as a cue for sleeping
What are the rules of SCT?
Get OOB after 15-20 min if not falling asleep
Do something quiet/relaxing outside of bed/bedroom
Return to bed ONLY when sleepy
When the pt is able to return to bed & fall asleep QUICKLY, this becomes a conditioned response to the bed as a result of positive reinforcement (the act of returning to sleep)
- Use bed/bedroom for sleep only
- Go to bed only when sleepy
- Get OOB when unable to sleep (i.e. 15 min)
- Arise same time every morning
- No napping
Created by Bootzin, Phd
What is Extinction?
Principle of elimination of a previously reinforced behavioral response
What are the different types of extinction?
Standard/unmodified extinction
Graduated extinction
Extinction with parental presence
What is the definition of standard/unmodified extinction?
Extinguishing infant crying at bedtime by d/cing the reinforcement of child crying via parental attention/presence
Parents have been reinforcing the child’s crying at bedtime (e.g. staying or returning to comfort the child when crying)
How is standard/unmodified extinction done?
Standard extinction involves putting the infant to bed while drowsy with adequate need for sleep and remotely monitoring for safety but not returning to comfort the child.
Requires parent to tolerate child crying and have strong support system (lots of wine and chocolate!)
What is graduated extinction?
Remove reinforcement over time
How is graduated extinction done?
Putting to bed when drowsy and then checking in at regular intervals (fixed or incremental scale). Not tied to whether the child is crying.
Problem as to whether you are still reinforcing in some way.
What is extinction with parental presence?
ignoring the child’s crying but remaining near the child (in the same room)
Also called “parental presence” or “camping out”
How is Extinction with parental presence done?
Parent stays in child’s room but not attending to them when crying
What is an extinction burst?
Reappearance of a previously extinguished behavior (crying) that should be ignored to prevent the problem from reoccurring due to parental reinforcement
What is the major barrier to implementing extinction treatments?
Parental resistance is the major barrier
What are alternatives to extinction treatments?
Positive routines
Bedtime fading
what is placebo effect?
Clinically significant response to therapeutically inert substance or nonspecific treatment, deriving from recipient’s expectations or beliefs regarding the intervention
What is the Health Belief Model?
Developed in 1950’s
person’s belief in a personal threat of an illness or disease together with a person’s belief in the effectiveness of recommended health behavior or action will predict the likelihood the person will adopt the behavior
what are the 2 components of health-related behavior?
- desire to avoid illness and desire to get well if already ill
- Belief that a specific health action will prevent or cure illness
What are the 6 core construct of HBM?
perceived susceptibility perceived severity perceived benefits perceived barriers cue to action-the stimulus needed to trigger the decision-making process to accept a recommended health action self-efficacy
What are the limitations of HBM?
Doesn’t account for person’s attitudes, beliefs or other individual determinants that dictate a person’s acceptance of a health behavior, habitual behaviors, non-health related reasons such as social acceptability, env factors, assumes everyone has equal access
What is the theory of Planned Behavior?
behavioral achievement depends on motivation (intention) and ability (behavioral control).
Distinguishes between 3 types of beliefs:
behavioral, normative, and control
What are the 6 constructs that collectively represent person’s actual control over the behavior
attitudes
behavioral intention
subjective norms (belief of whether people approve or disapprove of the behavior)
social norms (customary codes of behavior)
perceived power
perceived behavioral control
what are the limitations of Theory of Planned Behavior
Assumes people are acquired opportunities and resources to be successful, regardless of intention.
Does not account for other variables that factor into intention and motivation, such as fear, threat, mood.
Doesn’t take into account env or economic factors