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Operant Conditioning Intervention01:24

Operant Conditioning Intervention

Operant conditioning serves as a foundational principle in therapeutic interventions aimed at modifying maladaptive behaviors. Central to this approach is the notion that behaviors, both adaptive and maladaptive, are learned through reinforcement. By analyzing the environmental factors that reinforce problematic behaviors, clinicians can design interventions to weaken these reinforcements and replace maladaptive behaviors with healthier alternatives.
In operant conditioning, behaviors that are...
Operant Conditioning01:21

Operant Conditioning

Operant conditioning, a key concept in behavioral psychology, involves using reinforcement and punishment to alter the likelihood of a behavior being repeated. B.F. introduced this type of conditioning. Skinner focused on voluntary behaviors and the consequences that follow them, influencing whether these behaviors will be strengthened or diminished.
Reinforcement in operant conditioning can be positive or negative, both of which serve to increase the likelihood of a behavior. Positive...
Cognitive Dissonance01:38

Cognitive Dissonance

Social psychologists have documented that feeling good about ourselves and maintaining positive self-esteem is a powerful motivator of human behavior (Tavris & Aronson, 2008). In the United States, members of the predominant culture typically think very highly of themselves and view themselves as good people who are above average on many desirable traits (Ehrlinger, Gilovich, & Ross, 2005). Often, our behavior, attitudes, and beliefs are affected when we experience a threat to our...
Decision Making: P-value Method01:09

Decision Making: P-value Method

The process of hypothesis testing based on the P-value method includes calculating the P- value using the sample data and interpreting it.
First, a specific claim about the population parameter is proposed. The claim is based on the research question and is stated in a simple form. Further, an opposing statement to the claim  is also stated. These statements can act as null and alternative hypotheses:  a null hypothesis would be a neutral statement while the alternative hypothesis can have a...
Desensitization and Tachyphylaxis01:20

Desensitization and Tachyphylaxis

Tachyphylaxis is described as a rapid decrease in response to a drug after repeated or continuous administration of the same drug dose. It is a phenomenon where the body becomes less responsive to a particular substance or intervention over time, requiring higher doses or stronger interventions to achieve the same effect. It results from adaptive changes in the body's receptors, signaling pathways, or physiological processes that occur in response to prolonged exposure to a stimulus.
Several...
Generalization, Discrimination, and Extinction01:24

Generalization, Discrimination, and Extinction

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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Related Experiment Video

Updated: Jun 23, 2026

The Joint Effect of Social Comparison and Social Distance on Evaluation of Intertemporal Choice Outcomes in Event-related Potential Studies
08:24

The Joint Effect of Social Comparison and Social Distance on Evaluation of Intertemporal Choice Outcomes in Event-related Potential Studies

Published on: August 25, 2023

Instrumental outcome devaluation with representation-mediated conditioning.

Yoshio Iguchi1, Kiyoshi Ishii

  • 1Department of Psychology, School of Humanities, College of Human & Social Sciences, Kanazawa University, Kanazawa, Ishikawa, Japan. yoshio.iguchi@nagoya-u.jp

Behavioural Processes
|May 12, 2009
PubMed
Summary
This summary is machine-generated.

Rats learned instrumental behaviors for food rewards. When a new food outcome was paired with illness, rats reduced their behavior for that outcome, showing devaluation effects mediated by learned associations.

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Area of Science:

  • Behavioral neuroscience
  • Animal learning and behavior

Background:

  • Instrumental conditioning involves learning stimulus-response-outcome associations.
  • Discriminative stimuli signal the availability of specific outcomes.
  • Outcome devaluation is a key phenomenon in understanding associative learning.

Purpose of the Study:

  • To investigate outcome devaluation effects in rats.
  • To examine how discriminative stimuli influence outcome devaluation.
  • To explore representation-mediated devaluation processes.

Main Methods:

  • Rats were trained on two instrumental tasks (R1, R2) with distinct stimuli (Sd1, Sd2) and a common outcome (O1).
  • The outcome for R2 was switched to O2, which was then paired with lithium chloride (LiCl) to induce aversion.
  • Discriminative stimuli (Sd1, Sd2) were subsequently devalued via LiCl pairing, and effects on consumption and performance were measured.

Main Results:

  • Lithium chloride-induced aversion to O2 reduced R2 performance.
  • Devaluation of discriminative stimuli (Sd1, Sd2) led to reduced consumption of their associated outcomes (O1, O2).
  • Reduced R2 performance was observed in extinction following devaluation, indicating representation-mediated effects.

Conclusions:

  • Discriminative stimuli devaluation can lead to outcome devaluation.
  • These findings support the role of internal representations in mediating outcome devaluation.
  • The study demonstrates representation-mediated outcome devaluation in instrumental learning.