Application of Conditioning and Conditioning Models I
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Transcript of Application of Conditioning and Conditioning Models I
Why Do I Care About Pavlovian Conditioning Anyway?
• Drug tolerance & other homeostatic functions
• Conditioning of the immune system Ex: Solvason et al (1988); Buske-Kirschbaum et al
(1994) odor (camphor) interpheron trials
eventually, camphor produced ↑ immune response
• Behavioral Therapy Treatment of phobias = extinction
i.e., systematic desensitization, flooding
drug treatment extinction of conditioned craving
Clinical application of Pavlovian conditioning principles
• Systematic desensitization increasingly intense/natural/real stimuli
anxiety hierarchy thematic spatial-temporal
cue-controlled relaxation counterconditioning
Clinical application of Pavlovian conditioning principles
Clinical application of Pavlovian conditioning principles
Clinical application of Pavlovian conditioning principles
• Systematic desensitization increasingly intense/natural/real stimuli
anxiety hierarchy thematic spatial-temporal
cue-controlled relaxation counterconditioning
• Flooding intense, prolonged exposure
latent inhibition in chemotherapy
Why Do I Care About Pavlovian Conditioning Anyway?
• Important aspect of your everyday life Often not even conscious of process Strong component of emotional responses
e.g., letter from an old friend e.g., picture preference / odor conditioning
• Examples: Feel hungry when you expect food Fearful responses to prior painful situations Learning what pleases/upsets people in your life Learning tendencies of opponents (and
sequences of moves) in games/contests
Why Do I Care About Pavlovian Conditioning Anyway?
newspaper potty time
Why Do I Care About Pavlovian Conditioning Anyway?
Video
• Human conditioning
http://www.youtube.com/watch?v=lnL4fjMzsSU
Why Formal Models?
• Heuristic value Predicts new findings
• Veridical mental picture?
• Why analyze these models here? importance of R-W model skills learning
formal modeling & analytical thinking
Models of Conditioning
• Hull’s Habit Strength & Drive Theory Formal description (1943, 1952) Evaluation of the model
Excitatory learning curve Problems…
Models of Conditioning
Hull’s (1943) Change in “Habit Strength”(Habit Strength) SHR = 1 – 10–0.0305N
(Reaction Potential) SER = SHR * D
(Reactive Inhibition) IR
(Conditioned Inhibition) SIR = –1 + 10–0.0305N
(Effective Reaction SĒR = (SHR * D ) – (IR + SIR )
Potential)
strength of association / amount of learning
drive
fatigue
inhibitory associations
Models of Conditioning
Hull’s (1952) Revision
(Effective Reaction Potential)
SĒR = ( SHR * D * V * K ) – (IR + SIR )
(V = stimulus-intensity dynamism; K = incentive motivation)
Models of Conditioning
Hull’s (1952) Revision
SĒR = ( SHR * D * V * K ) – (IR + SIR )
Models of Conditioning
Models of Conditioning
Criticisms of Hull’s Theories
• Complicated… Application of excitatory and inhibitory
functions deemed “arbitrary”
• Does not handle: Blocking Overshadowing Latent Inhibition Etc…
Models of Conditioning
• What should you know about Hull’s theory?
Parts of model – yes! “habit strength” (associative weight) “drive” “reactive inhibition” (fatigue) “conditioned inhibition” (separate)
Equations no… except…
SHR = 1 – 10–0.0305N (Habit strength)
+ pros & cons!
Models of Conditioning
• Spence’s anticipatory goal response
classical conditioning of stimulus-reward leads to approach responses to that situation
orienting to the CS! Example:
Justin goes to movie theater, gets great popcorn
Friday Popcorn!Theater
Go to theater
Drool