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Related Concept Videos

Generalization, Discrimination, and Extinction01:24

Generalization, Discrimination, and Extinction

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Generalization, discrimination, and extinction are key concepts in operant conditioning that influence how behaviors are learned and maintained.
Generalization occurs when a behavior reinforced in one context is performed in similar situations. For instance, a student who studies diligently for calculus and receives excellent grades might apply the same study habits to psychology and history, expecting similar results. Generalization shows how learning in one setting can influence behavior in...
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Reinforcement Schedules01:24

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Positive reinforcement is a powerful method for teaching new behaviors to both animals and humans. B.F. Skinner demonstrated this with his experiments using rats in a Skinner box. When a rat pressed a lever, it received a food pellet. This immediate reward encouraged the rat to repeat the behavior. This method, where a reward follows every instance of the behavior, is known as continuous reinforcement. It is highly effective for establishing new behaviors quickly.
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Principles of Classical Conditioning01:23

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Classical conditioning, as described by Ivan Pavlov, is a foundational concept in associative learning, where a neutral stimulus becomes capable of eliciting a conditioned response through association with an unconditioned stimulus. The process of acquisition, where this learning occurs, and the subsequent phenomena of contiguity, contingency, generalization, discrimination, extinction, and spontaneous recovery are crucial for a comprehensive understanding of classical conditioning.
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Associative Learning01:27

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Associative learning is a fundamental concept in behavioral psychology, wherein a connection is established between two stimuli or events, leading to a learned response. This process is critical in understanding how behaviors are acquired and modified. Conditioning, the mechanism through which associations are formed, can be divided into two main types: classical conditioning and operant conditioning, each elucidating different aspects of associative learning.
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Timing and Consequences on Behavior01:08

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In operant conditioning, the timing of reinforcement is crucial. For animals like rats and cats, immediate reinforcement (within a few seconds) is much more effective than delayed reinforcement. For example, a food reward for a rat needs to follow within 30 seconds of pressing a bar to be effective. 
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Classical conditioning, a fundamental principle of associative learning, explains various phenomena observed in daily life, such as fear development, the placebo effect, taste aversion, and drug habituation. These applications demonstrate the profound impact of associative learning on human behavior and physiological responses.
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Extinction Training During the Reconsolidation Window Prevents Recovery of Fear
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Acquisition and extinction under periodic reinforcement.

A Machado1, M Cevik

  • 1Department of Psychology, Indiana University, Bloomington, IN 47405-1301, USA.

Behavioural Processes
|June 5, 2014
PubMed
Summary

Pigeons exposed to periodic reinforcement showed changes in their pecking rates during acquisition and distinct pause-peck oscillations during extinction. These findings offer insights into animal behavior and timing theories.

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Area of Science:

  • Behavioral Psychology
  • Animal Cognition
  • Operant Conditioning

Background:

  • Periodic reinforcement schedules are fundamental in understanding learning and behavior.
  • Previous research has explored fixed-interval schedules, but their interplay with extinction needs further examination.

Purpose of the Study:

  • To reexamine acquisition and extinction processes under periodic reinforcement.
  • To analyze pigeon behavior under fixed-interval schedules followed by unpredictable extinction.

Main Methods:

  • Pigeons were subjected to fixed-interval schedules (40 or 80 seconds).
  • Subsequent sessions included a fixed-interval schedule transitioning to extinction at unpredictable times.
  • Pecking rates and behavioral patterns were recorded and analyzed.

Main Results:

  • During acquisition, the average pecking rate curve rotated, with initial rates decreasing and terminal rates increasing.
  • Initial and terminal rates converged to a steady state at different speeds.
  • Extinction trials exhibited pause-peck oscillations with periods slightly longer than the fixed-interval duration.

Conclusions:

  • The study provides empirical data on acquisition and extinction under periodic reinforcement.
  • Observed behaviors were compared against current theories of timing.
  • Findings contribute to a deeper understanding of temporal control in animal behavior.