* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Lectures_Grad_2015_files/Catania ch 1-4 all
Learning theory (education) wikipedia , lookup
Observational methods in psychology wikipedia , lookup
Abnormal psychology wikipedia , lookup
Symbolic behavior wikipedia , lookup
Behavioral modernity wikipedia , lookup
Thin-slicing wikipedia , lookup
Transtheoretical model wikipedia , lookup
Neuroeconomics wikipedia , lookup
Attribution (psychology) wikipedia , lookup
Social perception wikipedia , lookup
Applied behavior analysis wikipedia , lookup
Sociobiology wikipedia , lookup
Theory of planned behavior wikipedia , lookup
Descriptive psychology wikipedia , lookup
Psychological behaviorism wikipedia , lookup
Theory of reasoned action wikipedia , lookup
Verbal Behavior wikipedia , lookup
Adherence management coaching wikipedia , lookup
Classical conditioning wikipedia , lookup
Social cognitive theory wikipedia , lookup
Behavior analysis of child development wikipedia , lookup
Behaviorism wikipedia , lookup
Catania Chapters 1-4 Part 1 1. What distinction is Catania suggesting between movements and actions? Why does he conclude that not all movement is behavior and not all behavior is movement? 2. What is the distinction between elicited and emitted behavior and between stimuli that elicit versus those that occasion behavior. Kelly G. Wilson, Ph.D. Learning? Within this System of Theorizing • “a relatively permanent change in behavior as result of experience” • But what is behavior, experience, and “permanent?” • Remaining at the level of observation—is it a change in behavior? • But what about when it isn’t being displayed? • Is learning a change in the organism? • Learning is the evolving, dynamic interaction of environment and behavior • Behavior is always behavior in and with a context • This is as close as I can currently come to a definition that remains true to the root metaphor and the stated purpose of the analysis Responses • Responses as movements? • Sometimes responses aren’t movements • We will only define responding in terms of its relation to current and historical context (environment) Behavior: Probability, Preference, & Liking • Sometimes one behavior is more likely than another • Preference – As cause? – Need to consider context • Appetitive, Aversive, and Neutral – Yes, context again Stimuli • Stimulus as object? • This is not physics • Sometimes stimuli aren’t objects – e.g., Shock goes off, schedule Sr+ richens • What is a stimulus stimulating if there is no response? • We will only define stimuli in terms of their relation to responding 5 Experimental Operations 1. 2. 3. 4. Stimulus Presentation Consequential Operations Establishing Operations Stimulus Control Superimposed on stimulus presentations 5. Stimulus Control Superimposed on consequential operations Stimulus Presentations • Operation –Presentation of a stimulus • Outcome –Alters the probability of response class that follows the operation • Often species specific, highly specific patterns of behavior (not perfectly fixed) • Raises the probability to near 1.0 • Process –Elicitation Establishing Operations • Operation – Any operation that alters the effectiveness of some consequence • Outcome – Alters the (1) probability of a response class that has produced that particular reinforcer by (2) momentarily altering the effectiveness of that reinforcer • Process – Deprivation, satiation Consequential Operations • Operation – Presentation of a stimulus following a response • Outcome – Alters the probability of a class of response that precedes the operation • Process – Consequation (most general—but weird) – Reinforcement – Punishment Stimulus-Control Superimposed on Stimulus Presentation • Operation – Presenting a neutral stimulus prior to presenting an eliciting stimulus (neutral???) • Outcome – Conditioned elicitation: previous neutral stimulus comes to have some of the psychological functions of the elicitor • Process – Classical/respondent conditioning Stimulus-Control Superimposed on Consequential Operations • Operation – Presenting some stimulus only when a consequence is available • Outcome – Discriminated Operant: presentation of previous neutral stimulus now alters the probability of response class that has produced that consequence – stimulus comes to have discriminative functions • Process – Discrimination learning Antecedents and Consequences • Antecedents precede behavior – Antecedent stimulation is the way we will talk about the context that immediately precedes a response • Consequences follow behavior – Consequential stimulation is the way we will talk about the context that immediately follows a response • History might include a more distal description of both antecedents and consequences (even though hx itself is antecedent) Catania Chapters 1-4 Part 2 Antecedents and Consequences, Unlearned and Learned Kelly G. Wilson, Ph.D. Behavior Occurs in Context • With respect to antecedents, we will need to understand – immediate antecedents and – the history of those antecedents • With respect to consequences, we will need to understand – immediate consequences, and – the history of those consequences Elicited Responses • When a response is primarily sensitive to antecedent stimulation (but not to consequences) it is elicited or respondent behavior. Antecedent raises probability to near 1.0 Emitted Responses • When a response is sensitive to both antecedent and consequential stimulation it is emitted or operant behavior Consider it this way • Respondent and operant behavior is never strictly separable • Both learning processes are ongoing at all times • Op/resp are ways of speaking and there are limiting conditions where this distinction does not operate usefully • Think about a behavioral stream and it’s sensitivity to antecedents and consequences • Think about the purpose of the particular analysis Typical Operant Example Behavioral Contrast • • • • • When one component of a multiple schedule is placed on extinction, behavior increases in the other component, even though the level of reinforcement remains the same. • We cannot explain these changes based solely on the operant contingencies Green light comes on Pigeon pecks the key Food access is granted If we want to predict and influence the rate of keypecks we can do so without thinking much about respondent conditioning • But… Behavioral Contrast More on Elicited Responses • Some elicited behavior requires no learning • Some elicited behavior requires learning • This behavior is called elicited or respondent behavior • When it requires learning it is called conditioned elicitation, still respondent behavior 2-term Contingency (no learning) Elicited\Respondent Behavior • Stimulus presentation (operation) • Stimulus --> Response • These were the “reflexes” or elicitation that were examined early on by physiologists • This behavior is not wholly fixed • Response strength – (S) Puff of air --> (R) eye blink – (S) Dog food --> (R) salivation – (S) Loud noise --> (R) cringe • This is the earliest relation we understood well – Latency – Magnitude – Duration • Weak response= long latency, small magnitude, short duration • Strong response= short latency, large magnitude, long duration Elicited\Respondent Behavior • Response strength varies with stimulus magnitude • In response to inhibiting stimulus – e.g., inhibition of contentment calls in birds – Even here we are seeing antecedent control • Strength varies with successive elicitations Effects of Successive Elicitations • Summation – Sub-threshold stimulus has eliciting effects given repeated presentations • Habituation – Successive presentations produce weaker and weaker responses (not to be confused with extinction!!! And I mean it!) • Potentiation – Successive presentations produce stronger and stronger responses • Effects diminish with passage of time Other Patterns of Elicitation 2-term Contingency (learned) • Sensitization • Stimulus -->Response – One stimulus amplifies the eliciting effects of another stimulus • Shock, noise for startle response • Strange sound, touch for startle response – Not to be confused with potentiation – Bell -->Salivation – Tone -->eye blink – Ready -->cringe • Stimulus control superimposed on stimulus presentation (operation) • For this, we need a history of presentations (learning) • Conditioned elicitation 2-term contingency (learned) but, how does this happen? mmmmm… dog food. This is elicitation. mmmmm… dog food. Hx of pairing Then: nothing. whatever…. mmmmm… bell/dog food. This is conditioned elicitation. mmmmm… dog food. Conditioned Elicitation • Successive presentations of the CS will result in decrements in elicitation • This is extinction • In the realm of respondents, extinction always refers to conditioned elicitors Effects of Time Since Last Elicitation From Elicited to Emitted Behavior • Time since last elicitation will produce decrements in the following processes • Reflex is one example of an S-R relation • But there are other relations between stimuli and responses – Summation—stimulus returns to its subthreshold capacity to elicit a response – Habituation—stimulus returns to its original capacity to elicit a stronger response – Potentiation—stimulus returns to its original capacity to elicit a weaker response Schedule Induced Polydipsia Adjunctive behavior An Example 3 grams of food • One kind of responding reliably follows another kind of responding • Schedule induced polydipsia Feed Pinky 1 gram at a time then pause with available water – Drinking follows eating in rats, independent of the quantity of food • Other examples might include running after eating, grooming, etc. Pinky drinks 3 milliliters of water 3x for a total of 9 milliliters of water But if we divide it into .2 gram each time….well pinky will drink until he is sick—15 times 3 milliliters Superstitious Pigeons Elicited to Emitted • Food is introduced into an experimental chamber at regular intervals—say once very two minutes on a fixed schedule • Over time behavior takes on a pattern • The pattern varies from pigeon to pigeon • Accidental strengthening effects of consequences • Think about human examples??? • Some behaviors begin as reflexes or respondent behaviors, but become operant • Suckling—begins with rooting reflex • Rooting reflex disappears • Suckling becomes both more refined and becomes independent of eliciting stimuli Some working examples • 1) A sound (e.g., the word "Catania") is produced every time pepper spray is administered to you. Soon you cry every time the word is muttered. What is producing the sound “Catania?” • 2) If I shock a dog with a cattle prod, the dog always yelps. What is applying the shock? • 3) When the underside of an infant’s foot is tickled, the toes will splay outward (the Babinski reflex). What is the tickling? • 6) When Bart gives Lisa a hug (i.e. is being nice) only when Aunt Patty is around because she always gives him $10.00 for good behavior. • 7) Kicking someone in the knee makes aspirin more reinforcing. What is the kick? • 8) A child playing in the driveway forgets to pick up her toys. Her mother arrives home from work later that day and, not seeing the toys, runs over them with the car. The next day, the child remembers to pick up her toys from the • 4) When a dog comes into contact with an electric fence that I installed, the dog is shocked. The dog subsequently is less likely to approach the fence. What is the application of the shock? • 5) When my sister’s dog first became a member of the family in our home, he was not allowed to enter the living room. Every time he stepped on the living room carpet, someone in the house would shake a soda can full of pennies, causing our dog to get scared and run off of the carpeting. Shaking • 9) Water is consequence of rat pressing lever. The temperature of the rat's environment is increased. The water becomes more valuable. • 10) In order to get the rats in her lab to work for water, Kolleen allowed the rats to have water only once a day for 20 minutes. Subsequent to this deprivation, the rats were more likely to pull a chain for water. What is the water deprivation? • 11) When Neville Longbottom, one of Harry Potter’s friends, melts a classmate’s cauldron and has to serve detention with Professor Snape in the dungeon, he must perform nasty deeds such as taking the guts out of a bunch of horned toads. His willingness to study for his Potions class increases exponentially when he is in that dungeon room. So when he goes there on an adventure with Harry Potter, even though he’s not serving detention, his • 14) Giving a child unlimited access to their Halloween candy may alter the effectiveness of Halloween candy as a reinforcer for good behavior. • 15) If an owner calls the dog’s name and the dog comes to the owner, the owner gives the dog a food. If doing this several times, the dog will come easily after the owner calls the dog’s name. • 12) A subject is placed in a chair with a red button on a panel in front of the chair. If the red button is pressed then the chair will begin to vibrate providing a therapeutic massage for the lower back area. • 13) A dog may avoid an electric wire only when it hears a hum. Touching the wire resulted in an electric shock only when the electric box that generates the electricity produced a humming sound.