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Welcome to Unit 2 Any Questions?. Getting Ready For Project 1: Unit 3. Read assignment carefully Review Rubric and use as checklist Proof read carefully. Don’t depend on Spell Check alone! Use APA writing style. See sample paper in Doc Sharing.
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Getting Ready For Project 1: Unit 3 • Read assignment carefully • Review Rubric and use as checklist • Proof read carefully. Don’t depend on Spell Check alone! • Use APA writing style. See sample paper in Doc Sharing. • Use KU Library, rather than the Internet to find your articles. If you aren’t familiar with the library, click on the link and take the orientation tour. • Questions?
Applied Behavior Analysis is grounded in Principles of Learning • Learning • any process through which experience at one time can alter an individual’s behavior at a future time • A relatively enduring change in behavior or knowledge that is due to past experience
The study of LEARNING formed the basis for the approach in Psychology known as Behaviorism
BEHAVIORISM IS: • The attempt to understand observable activity in terms of observable stimuli and observable responses • IMPORTANT TO THE DEVELOPMENT OF BEHAVIORAL THEORY • PAVLOV • WATSON • THORNDIKE • SKINNER
Types of Learning Respondent or Classical Conditioning Operant Learning BF Skinner Behavior that is shaped by consequences I study hard for this test and get a high grade, so I study hard next test too. I come to work all week and get paid, so I keep coming to work The more projects I complete, the more I get paid, so I work as fast as I can • Ivan Pavlov • Behavior that is reflexive elicited by a stimulus) • When I smell food, I salivate • When I smell bad food, I gag • When A puff of air is blown in my face, I blink
Important Terms Ivan Pavlov: Founder of the practice of Classical Conditioning Respondent Conditioning: Synonymous term for Classical Conditioning. Unconditioned Stimulus: A stimulus that naturally produces a response Unconditioned Response: A response that is naturally produced by the subject. Neutral Stimulus: A stimulus which normally does not elicit the response. Conditioned Stimulus: The formerly neutral stimulus which after pairing produces the response Conditioned Response: The response when produced by the Conditioned Stimulus (formerly neutral stimulus). Involuntary behavior: Behavior that can be modified through the use of Classical Conditioning.
Ivan Pavlov (1849–1936) Russian Physiologist Won a Nobel Prize for studying digestion in dogs
Pavlov and Classical Conditioning Conditioning: The process of learning associations between environmental events (stimuli) and responses PAVLOV’S DOGS (re-enactment, of course) http://www.youtube.com/watch?v=CpoLxEN54ho
Pavlov’s Dogs • Digestive reflexes and salivation • Psychic secretion
Neutral Stimulus—Bell Does not normally elicit a response or reflex action by itself • a bell ringing • a color • a furry object
Unconditioned Stimulus—Food Always elicits a reflex action: an unconditioned response • food • blast of air • noise
Unconditioned Response —Salivation A response to an unconditioned stimulus—naturally occurring • Salivation at smell of food • Eye blinks at blast of air • Startle reaction in babies
Conditioned Stimulus—Bell • The stimulus that was originally neutral becomes conditioned after it has been paired with the unconditioned stimulus • Will eventually elicit the unconditioned response by itself
Conditioned Response The original unconditioned response becomes conditioned after it has been elicited by the neutral stimulus
JOHN B. WATSON (1878-1958) • "Give me a dozen healthy infants, well-formed, and my own specified world to bring them up in and I'll guarantee to take any one at random and train him to become any type of specialist I might select–doctor, lawyer, artist–regardless of his talents, penchants, tendencies, abilities, vocations and race of his ancestors" (p. 104) • WATSON, JOHN B. 1930. Behaviorism, revised edition. Chicago: University of Chicago Press. • http://www.youtube.com/watch?v=Xt0ucxOrPQE
BEFORE CONDITIONING Rat (NS) No Fear response Loud Noise Fear Response DURING CONDITIONING Rat + Loud Noise Fear Response AFTER CONDITIONING Rat Fear Response
Ethical Issues • Not likely this study would be done today!!
Rescorla, Robert A. (1988). Pavlovian Conditioning: It’s not what you think it is. American Psychologist, Vol 43(3),151-160. • Consideration of Rescorla Article • The circumstances that produce Pavlovian conditioning are not as simple and automatic as an introductory discussion might lead you to believe • Conditioning involves more than contiguous pairing that produces associations between stimuli • Rather Conditioning involves learning relations between events • Multiple associations may be made during conditioning • Ultimately associations represent useful information that is coded in the organism • Not all stimuli are equally associable and some types conditioning happens more quickly