factors influencing respondent & operant learning: part 1
DESCRIPTION
Factors Influencing Respondent & Operant Learning: Part 1. Lesson 9. Associative Learning & Language. Language acquisition Interaction of nature & nurture Respondent & operant Respondent Association of sounds & symbols English: “ deh ” = d ; “err” = r - PowerPoint PPT PresentationTRANSCRIPT
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Factors Influencing Respondent &
Operant Learning:Part 1
Lesson 9
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Associative Learning & Language
Language acquisition Interaction of nature & nurture Respondent & operant
Respondent Association of sounds & symbols English: “deh” = d; “err” = r Russian: “deh” = д; “err” = р ~
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Respondent Learning & Language
Associatе sounds/symbols with objects/actions English: dog; woman; speak Spanish: perro; mujer; hablar Russian: собака; женщина, говорить
Words/ideas Conditional stimuli Conditional responses ~
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Operant Learning & Language
Babies start off babbling sounds Inherited behavior
Certain sounds are reinforced Directly by parents, etc. Also by consequences
words are understood consequences Mother ~
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Respondent & Operant Together
SD B SR:
CS US:
CR
UR
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Respondent vs Operant
Both associative Involuntary vs voluntary Biologically important events
US vs SR
Signals/cues CS vs SD
Contingency CS : US vs B SR ~
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Factors Influencing Acquisition
Frequency # learning trials
Predictivity contingency & probability
Contiguity timing
Salience Intensity / novelty ~
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Acquisition: Frequency Gradual
usually requires many pairings Respondent: CS : US UR Operant: SD : B SR
Measuring the learned response magnitude latency / probability / frequency
Asymptote limit to how much can be learned ~
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Respondent Acquisition
CS : US pairings
CS : US UR
CR
CRStrength
Asymptote
Hi
Lo
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Operant Acquisition
BarPressRate(B)
B SR Trials
Asymptote
Hi
Lo
SD : B SR
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Detour Learning Task
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FIGURE 1Males
0
50
100
150
200
250
300
350
1 2 3 4
Detour Learning Trial
Mea
n L
aten
cy t
o S
oci
al C
on
tact Strangers
Cagemates
Acquisition: Detour LearningChicks performance on detour learning task
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Acquisition: Predictivity
Contingency CS+ / CS- SD / S∆
Probability Usefulness of cues Hi faster learning Low slower learning ~
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Contiguity: Respondent Learning
Order & Timing Anticipate important event strongest to weakest CR
DelayedCS
US
TraceCS
US
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Contiguity: Respondent Learning
SimultaneousCS
US
BackwardCS
US
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Contiguity: Respondent Learning CS-US interval In general...
shorter interval more effective longer interval less effective
Depends on response system Fast: .5 - 2 seconds)
e.g., eye blink, skeletal muscle reflexes Slow: 2-3 min
e.g., CERs, physiological responses Nausea (CTA): hours ~
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Contiguity: Operant Learning
Delay of Reinforcement Immediate consequences most effective
temporal contiguity reinforcement & punishment
longer delays: probability of other behaviors being
reinforced instead of intended behavior ~
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Delay of Reinforcement
0 20 40 60
Delay between B and SR (sec)
Bar pressesper minute
0
5
10
15
20