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Transcript
PsychSmart
INTRODUCTION TO PSYCHOLOGY
1
Copyright © McGraw-Hill, Inc. 2011

CHAPTER FIVE:
LEARNING
2
Copyright © McGraw-Hill, Inc. 2011
Learning

A relatively permanent change in behavior
that is brought about by experience
3
Copyright © McGraw-Hill, Inc. 2011
Classical Conditioning

What is learning?

How do we learn to form associations
between stimuli and responses?
4
Copyright © McGraw-Hill, Inc. 2011
What is Classical
Conditioning?

A type of learning in which a neutral
stimulus comes to elicit a response after
being paired with a stimulus that naturally
brings about that response

Ivan Pavlov
5
Copyright © McGraw-Hill, Inc. 2011
What is Classical
Conditioning?





Neutral stimulus
Unconditioned stimulus
(UCS)
Unconditioned
response (UCR)
Conditioned stimulus
(CS)
Conditioned response
(CR)
Figure 1 of Chapter 5
Copyright © McGraw-Hill, Inc. 2011
6
How Do Conditioning
Principles Apply to Human
Behavior?

“Little Albert”


John B. Watson and Rosalie Rayner (1920)
Phobias
7
Copyright © McGraw-Hill, Inc. 2011
Extinction of a
Conditioned Response

Occurs when a previously conditioned
response decreases in frequency and
eventually disappears

Spontaneous Recovery

Reemergence of an extinguished conditioned
response after a period of rest and with no further
conditioning
8
Copyright © McGraw-Hill, Inc. 2011
Extinction of a Conditioned
Response
Acquisition, Extinction, & Spontaneous
Recovery in Classical Conditioning
Figure 2 of Chapter 5
Copyright © McGraw-Hill, Inc. 2011
9
Generalization and
Discrimination

Stimulus Generalization


Occurs when a conditioned response follows
a stimulus that is similar to the original
conditioned stimulus
Stimulus Discrimination

Occurs if two stimuli are sufficiently distinct
from one another such that one evokes a
conditioned response but the other does not
10
Copyright © McGraw-Hill, Inc. 2011
Operant Conditioning

What is the role of reward and punishment
in learning?

What are some practical methods for
bringing about behavior change—both in
ourselves and in others?
11
Copyright © McGraw-Hill, Inc. 2011
Operant Conditioning

Learning in which a voluntary response is
strengthened or weakened, depending on
its favorable or unfavorable consequences
12
Copyright © McGraw-Hill, Inc. 2011
How Operant Conditioning
Works

Reinforcement

A process by which a stimulus increases the
probability that a preceding behavior will be
repeated

Reinforcer


Primary
Secondary
13
Copyright © McGraw-Hill, Inc. 2011
How Operant Conditioning
Works

Positive Reinforcers


Stimulus added to the environment that brings
about an increase in a preceding response
Negative Reinforcers

Unpleasant stimulus whose removal leads to
an increase in the probability that a preceding
response will be repeated
14
Copyright © McGraw-Hill, Inc. 2011
How Operant Conditioning
Works

Punishment

Stimulus that decreases the probability that a
prior behavior will occur again

Positive punishment


Adding something
Negative punishment

Removing something
15
Copyright © McGraw-Hill, Inc. 2011
How Operant Conditioning
Works
Reinforcement and Punishment
Figure 3 of Chapter 5
Copyright © McGraw-Hill, Inc. 2011
16
Schedules of Reinforcement

Continuous reinforcement schedule


Reinforced every time it occurs
Partial (intermittent) reinforcement
schedule

Reinforced some but not all of the time
17
Copyright © McGraw-Hill, Inc. 2011
Schedules of Reinforcement

Fixed-Ratio Schedule


Reinforcement is given
only after a specific
number of responses.
Variable-Ratio
Schedule

Occurs after a varying
number of responses
Figure 4 of Chapter 5
Copyright © McGraw-Hill, Inc. 2011
18
Schedules of Reinforcement

Fixed-Interval Schedule
Provides reinforcement for a response only if
a fixed time period has elapsed
 Overall rates of response are relatively low.


Variable-Interval Schedule

The time between reinforcements varies
based on an average rather than being fixed.
19
Copyright © McGraw-Hill, Inc. 2011
Discrimination and
Generalization in Operant
Conditioning

Stimulus control training


Behavior is reinforced in the presence of a
specific stimulus, but not in its absence.
Discriminative stimulus

Signals the likelihood that reinforcement will
follow a response
20
Copyright © McGraw-Hill, Inc. 2011
Shaping: Reinforcing What
Doesn’t Come Naturally

Process of teaching a complex behavior
by rewarding closer and closer
approximations of the desired behavior
Animal training
 Complex human skills

21
Copyright © McGraw-Hill, Inc. 2011
Comparing Classical and
Operant Conditioning
Figure 5 of Chapter 5
Copyright © McGraw-Hill, Inc. 2011
22
Behavior Analysis and
Behavior Modification

Techniques
Identify goals and target behaviors
 Design a data-recording system and record
preliminary data
 Select a behavior-change strategy
 Implement the program
 Keep careful records after the program is
implemented
 Evaluate and alter the ongoing program

23
Copyright © McGraw-Hill, Inc. 2011
Cognitive Approaches
to Learning

Can all learning be explained by operant
and classical conditioning processes?

What is the role of cognition and thought in
learning?
24
Copyright © McGraw-Hill, Inc. 2011
Cognitive Learning Theory

An approach that states that learning is
best understood in terms of thought
processes, or cognitions

People develop an expectation that they
will receive a reinforcer after making a
response.
25
Copyright © McGraw-Hill, Inc. 2011
Latent Learning

New behavior is learned but not
demonstrated until some incentive is
provided for displaying it.

Learning occurs without reinforcement.
26
Copyright © McGraw-Hill, Inc. 2011
Observational Learning:
Learning Through Imitation

Learning by watching the behavior of
another person, or model


The social cognitive approach to learning
Albert Bandura
27
Copyright © McGraw-Hill, Inc. 2011
Violence in Television
and Video Games:
Does the Media’s Message
Matter?

Recent research supports the claim that
watching high levels of media violence
makes viewers more susceptible to acting
aggressively.
28
Copyright © McGraw-Hill, Inc. 2011
Does Culture Influence
How We Learn?

Relational learning style


People master material best through
exposure to a full unit or phenomenon.
Analytical learning style

People master material best when they can
carry out an initial analysis of the principles
and components underlying a phenomenon or
situation.
29
Copyright © McGraw-Hill, Inc. 2011
Does Culture Influence
How We Learn?
Analytical versus Relational Approaches to
Learning
Figure 7 of Chapter 5
Copyright © McGraw-Hill, Inc. 2011
30