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Assignment #2  Topics (Choose ONE):  Different sports have different techniques for deterring unwanted behaviour (e.g. penalty box in hockey, yardage penalties in football). Discuss sports penalties in terms of the four operant contingencies. You can pick your favourite sport or compare across several.  Discuss Gallup’s self recognition task. What are the procedures, who has been used as subjects and what does this say about self-awareness?  Pick an event that often evokes superstitious behaviour (e.g. gambling, sports, exams). Explain where the behaviour comes from. 1 Operant Applications 2 Overview  Animal Care & Training  Self-Awareness  Self-Control  Verbal Behaviour  Insight  Creativity  Superstition  Delusions & Hallucinations 3 4 Veterinary Care  Large animals, carnivores, stress-susceptible  Shaping  Change behaviour patterns  Positive reinforcement rather than punishment 5 6 Observing the World  Social animals  Understanding another’s behaviour beneficial  Reinforcement through watching others  Observation of self; own behaviour 7 Gallup’s Mirror Self-Recognition Task  Allow chimp time to learn about mirror  Stages  Tranquilize chimp and paint dot on head  See if chimp notices changed appearance  Mental self-image  Used with children 8 Epstein’s pigeons  Trained to peck a blue dot  Experience with mirror  Blue dot on pigeon under bib  Peck at bib  Other animals  Elephants, dolphins, children 9 Shaping of Self-Observation?  Skinner  Kinds of questions we ask children reinforces self- observation  e.g., “are you hungry?” “what are you doing?”  Accurate response likely results in some form of desired outcome (i.e., reinforcement of behaviour) 10 11 Self-Control  Choice  Forgoing a small, immediate reinforcer for large, delayed reinforcer  Humans, non-humans  Circular explanation (will power) 12 Techniques  Physical restraint  Distancing  Distraction  Deprivation & Satiation  Assistance  Behaviour monitoring 13 Physical Restraint  Physically prevent behaviour from occurring  e.g., lock liquor cabinet  e.g., cut up credit cards 14 Distancing  Behaviour more likely to occur in specific environment  Avoid environment to assist self-control  e.g., smokers who want to quit should avoid places where smokers frequent 15 Distraction  Engage in behaviour incompatible with undesired behaviour  e.g., want a snack, go for a walk 16 Deprivation and Satiation  To avoid excesses  e.g., to avoid overeating at party, eat small meal earlier  Partial satiation 17 Assistance  Inform others of your goals  Get help  Changes the environment  e.g., friends may be “enablers” 18 Behavioural Monitoring  Keep track of your own behaviour  Notebook, graphs, etc.  Visible indicators  Dieters in room with candy bowl; those who had to leave wrappers on table ate fewer pieces than those who could put wrappers in garbage 19 20 Skinner (1957)  Verbal Behavior  Suggests ideas not encoded into words by speaker and decoded by listener  Words are behaviours  Functional relationship between a word and an outcome (i.e., reinforcement or punishment)  Social consequences provide shaping and maintenance of language 21 Early Shaping of Words  Babies babble  Parents reinforce certain sounds with attention, etc.  Increases frequency of these sounds  Gradually, reinforcement for more complex vocalizations only 22 Shaping Language?  Greenspoon (1955)  Reinforced or punished plural nouns in subjects’ lists of words  problem  Verplanck (1955)  Reinforced or didn’t reinforce subjects’ use of opinion statements  Quay (1959)  Reinforced statements about family members  Psycho-therapy? 23 Complex  Life-long reinforcement (and punishment) history  Much vocal reinforcement without conscious knowledge  Reinforcing lies 24 25 Problem Solving  Trial and error, accidental success  Insight = Sudden solution  “think things through”  Skip intermediate steps 26 Suspended fruit task  Kohler  Sultan  Pushed box under banana  Epstein (1984)  pigeons  Suggested insight could be due to reinforcement history Can’t reach! 27 28 Can Creativity be Shaped?  Novelty, original behaviour  Provide reinforcement only for novel behaviour  creativity  Pryor’s (1969) work with porpoises and pigeons  Various studies with children 29 Rewards and Creativity  Some studies suggest rewards reduce creativity  Reward for task or no reward for task  Find more creative responses in non-rewarded group  But, typically it is not creativity that is rewarded, but task completion  Society and status quo  Peer pressure; what is “normal”?  Failure 30 31 Accidental Conditioning  B.F. Skinner (1948)  Pigeons  Grain every 15 seconds  Development of behaviours  Accidental strengthening 32 Humans  Bruner & Revusky (1961)  Teenagers and 4 buttons; only button 3 gave reinforcement on FI schedule  Wagner & Morris (1987)  Children and clown doll giving marbles  Ono (1987)  University students and levers; told to gain as many points as possible, but points just given periodically 33 Timing?  Staddon & Simmelhag (1971)  Interim and terminal behaviours 34 35 Attention Seeking  Not always a biological root  Patients  Delusions provide attention from staff  Social reinforcement  “Weird” behaviours might be shaped  Stop reinforcement to reduce behaviour  Maintenance of behaviour (“catch on”) 36 37 Self-Injuries  Punishment often effective for suppression  Lovaas & Simmons (1969)  Boy making 30 hits per minute  Four behaviour-contingent electric shocks to leg  Self-injurious behaviour stopped 38 Escape  Wolf (1967)  Injurious behaviour increased when teacher asked boy questions  Injurious behaviour dropped when teacher stopped asking questions  Negative reinforcement  Lack of demands  Use of DRI to reduce SI behaviour 39