Download the ppt - Old Saybrook Public Schools

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project

Document related concepts
no text concepts found
Transcript
Chapter 6
Learning – 8th edition
Learning

Learning defined on page 231-232
– Classical conditioning
– Operant/Instrumental conditioning
– Observational learning


Ivan Pavlov – Classical conditioning
Terminology
–
–
–
–
Unconditioned Stimulus (UCS)
Conditioned Stimulus (CS)
Unconditioned Response (UCR)
Conditioned Response (CR)
Table of Contents
Demonstration of Pavlov’s Dog
http://www.youtube.com/watch?v=CpoLxEN54ho&feature=related
Table of Contents
Table of Contents
Table of Contents
Classical Conditioning: More Terminology




Trial = pairing of UCS and CS
Acquisition = initial stage in learning
Stimulus contiguity = occurring together in time and space
3 types of Classical Conditioning
– Simultaneous conditioning: CS and UCS begin and end together
– Short-delayed conditioning: CS begins just before the UCS, end
together
– Trace conditioning: CS begins and ends before UCS is presented

Classical Conditioning in Everyday Life
–
–
–
–
Conditioned fears
Other conditioned emotional responses
Conditioning and physiological responses
Conditioning and drug effects – F 6.6
Table of Contents
Processes in Classical Conditioning






Extinction - F 6.7
Spontaneous Recovery – F 6.7
Stimulus Generalization – F6.8, F 6.9
Discrimination – F 6.9
Higher-order conditioning – F6.10
Applications of classical conditioning – Pavlov
and persuasion – p. 270-271 – F 6.31
Table of Contents
XX 6.7
Table of Contents
XXX 6.8
Table of Contents
XX 6.10
Table of Contents
Operant Conditioning or Instrumental
Learning


Edward L. Thorndike (1913) – the law of effect –
puzzle box and learning curve – F 6.11
B.F. Skinner (1953) – principle of reinforcement
– Operant chamber – “Skinner Box” – F 6.13a
– Emission of response
– Reinforcement contingencies – antecedents, behaviors, and
consequences (ABC)
– Cumulative recorder – F 6.13b
– http://www.youtube.com/watch?v=AepqpTtKbwo&feature=related
Table of Contents
XX 6.12
Table of Contents
Table of Contents
Figure 6.13 Skinner box and cumulative recorder
Basic Processes in Operant
Conditioning




Acquisition
Shaping – p. 245 – animal examples
Extinction
Stimulus Control
– Generalization
– Discrimination

Remote controlled rat – F 6.15
Table of Contents
XX 6.14
Table of Contents
Table 6.1 Comparison of Basic Processes in Classical and Operant Conditioning
Table of Contents
Reinforcement: Consequences that
Strengthen Responses

Delayed Reinforcement
– Longer delay, slower conditioning

Primary Reinforcers
– Satisfy biological needs

Secondary Reinforcers
– Conditioned reinforcement
Table of Contents
Schedules of Reinforcement



Continuous reinforcement
Intermittent (partial) reinforcement
Ratio schedules
– Fixed
– Variable

Interval schedules
– Fixed
– Variable

Schedules of reinforcement and everyday life – F
6.16
Table of Contents
XX 6.17
Table of Contents
Consequences: Reinforcement and
Punishment

Increasing a response:
– Positive reinforcement = response followed by rewarding
stimulus
– Negative reinforcement = response followed by removal of
an aversive stimulus
• Escape learning
• Avoidance learning

Decreasing a response:
– Punishment
– Problems with punishment – third variable problem and
correlation between punishment and aggression – F 6.21
Table of Contents
XX 6.18
Table of Contents
XX 6.19
Table of Contents
XX 6.20
Table of Contents
Changes in Our Understanding of
Conditioning

Biological Constraints on Conditioning
– Breland and Breland (1961) – misbehavior of organisms
– Instinctive Drift
– Conditioned Taste Aversion – Garcia & Koelling (1966) –
Figure 6.22
– Preparedness and Phobias

Cognitive Influences on Conditioning
– Signal relations
– Response-outcome relations
– Latent learning – F 6.23

Evolutionary Perspectives on learning
Table of Contents
XX 6.22
Table of Contents
Observational Learning: Basic
Processes

Albert Bandura (1977, 1986)
– Observational learning – F 6.24
– Vicarious conditioning
– Bandura, Ross, & Ross (1963) – featured study p. 261 –
262 – Figure 6.25

4 key processes
–
–
–
–

attention
retention
reproduction
motivation
acquisition vs. performance
Table of Contents
xxx 6.24
Table of Contents
Bandura, Ross, & Ross (1963)
featured study - p. 245 – 246 –
Figure 6.25
http://www.youtube.com/watch?
v=vdh7MngntnI&feature=related
Table of Contents
p. 245
Observational Learning and the
Media Violence Controversy


Studies demonstrate that exposure to TV and
movie violence increases the likelihood of
physical aggression, verbal aggression,
aggressive thoughts, and aggressive emotions
The association between media violence and
aggression is nearly as great as the correlation
between smoking and cancer – F 6.26 – third
variable problem
Table of Contents
Figure 6.27. Comparison of the relationship between media violence and aggression to other correlations.
Table of Contents
Modify your own behavior?
Figures 6.28 and 6.29
Table of Contents
Related documents