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Questions and Answers
What is classical conditioning?
What is classical conditioning?
Classical conditioning is a type of learning in which a stimulus acquires the capacity to evoke a response that was originally evoked by another stimulus.
What role did Pavlov play in 'discovering' classical conditioning?
What role did Pavlov play in 'discovering' classical conditioning?
Pavlov demonstrated how stimulus-related associations are formed by events in an organism's environment.
What is an unconditioned stimulus?
What is an unconditioned stimulus?
A stimulus that evokes an unconditioned response without previous conditioning.
What is an unconditioned response?
What is an unconditioned response?
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What is a conditioned stimulus?
What is a conditioned stimulus?
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What is a conditioned response?
What is a conditioned response?
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How does one 'acquire' a conditioned response, and what factors must be present for acquisition?
How does one 'acquire' a conditioned response, and what factors must be present for acquisition?
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How does extinction occur with a classically conditioned response?
How does extinction occur with a classically conditioned response?
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What facilitates stimulus generalization and stimulus discrimination?
What facilitates stimulus generalization and stimulus discrimination?
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What is higher-order conditioning and how does it occur?
What is higher-order conditioning and how does it occur?
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What is operant conditioning?
What is operant conditioning?
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What role did B.F. Skinner play in 'discovering' operant conditioning?
What role did B.F. Skinner play in 'discovering' operant conditioning?
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What is shaping and how does it occur?
What is shaping and how does it occur?
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When does extinction occur?
When does extinction occur?
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What pattern of reinforcement is most robust to extinction and why?
What pattern of reinforcement is most robust to extinction and why?
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Compare and contrast fixed and variable reinforcement.
Compare and contrast fixed and variable reinforcement.
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Compare and contrast interval and ratio reinforcement.
Compare and contrast interval and ratio reinforcement.
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What is the difference between positive reinforcement, negative reinforcement, and punishment?
What is the difference between positive reinforcement, negative reinforcement, and punishment?
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Study Notes
Classical Conditioning
- Classical conditioning is a learning process where a neutral stimulus acquires the ability to evoke a response previously triggered by another stimulus.
- Ivan Pavlov is recognized for demonstrating the formation of stimulus-related associations through environmental events.
- Unconditioned stimulus is a stimulus that naturally evokes an unconditioned response without prior learning.
- Unconditioned response refers to a natural reaction to an unconditioned stimulus, occurring without previous conditioning.
- A conditioned stimulus is a neutral signal that has been paired with an unconditioned stimulus to evoke a conditioned response.
- The conditioned response is a learned reaction to a conditioned stimulus, resulting from prior conditioning.
- Acquisition of a conditioned response relies on stimulus contiguity, where stimuli must occur together in time and space, with novelty or intensity enhancing conditioning potential.
- Extinction in classical conditioning involves the gradual reduction of a conditioned response when the conditioned stimulus is presented repeatedly without the unconditioned stimulus.
Stimulus Generalization and Discrimination
- Stimulus generalization occurs when an organism responds similarly to new stimuli that resemble the original conditioned stimulus.
- Stimulus discrimination happens when an organism distinguishes between a specific conditioned stimulus and similar stimuli, not responding the same way.
Higher-Order Conditioning
- In higher-order conditioning, a previously established conditioned stimulus is used to condition a new response, functioning as if it were an unconditioned stimulus.
Operant Conditioning
- Operant conditioning is a learning process where voluntary behaviors are influenced by their consequences.
- B.F. Skinner played a crucial role in operant conditioning by showing that behaviors followed by favorable consequences are more likely to be repeated.
Shaping and Extinction
- Shaping involves reinforcing successive approximations to a desired behavior when the behavior is not naturally occurring.
- Extinction happens when a response gradually weakens and disappears due to the absence of reinforcement.
Reinforcement Schedules
- Intermittent reinforcement is more resilient to extinction compared to continuous reinforcement, as it provides reinforcement only sometimes.
- Ratio schedules yield faster responses than interval schedules, with variable ratios offering greater resistance to extinction compared to fixed ratios.
Fixed vs. Variable Reinforcement
- Fixed reinforcement gives a reward after a specified number of responses, while variable reinforcement provides rewards after varying numbers, averaging out over time (e.g., reinforcing after every tenth response on average).
- Interval reinforcement rewards the first response after a fixed time has passed, whereas variable-interval reinforcement gives rewards after unpredictable time intervals.
Reinforcement Types
- Positive reinforcement strengthens a response by presenting a rewarding stimulus.
- Negative reinforcement strengthens a response through the removal of an aversive stimulus.
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Description
Test your knowledge on classical conditioning and its key concepts. This quiz covers the foundational ideas introduced by Pavlov and the mechanics of stimulus-response associations.