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Behaviorism01:28

Behaviorism

The field of behaviorism was pioneered by figures such as Ivan Pavlov, John B. Watson, and B.F. Skinner fundamentally shifted the focus of psychology to the observable and controllable aspects of human and animal behavior. This shift marked a critical evolution in the discipline, emphasizing scientific rigor and experimental methodology.
The core premise of behaviorism is its focus on observable behavior rather than internal thoughts or feelings. This approach argues that true scientific...
Behavior Modification01:21

Behavior Modification

Behavioral approaches have often been criticized for ignoring mental processes and focusing solely on observable behavior. However, these approaches provide an optimistic perspective for individuals seeking to change their behaviors. Rather than concentrating on intrinsic personality traits, behavioral approaches suggest that even longstanding habits can be modified by changing the reward contingencies that maintain them.
A real-world application of operant conditioning principles is applied...
Law of Effect01:06

Law of Effect

B.F. Skinner, a prominent figure in behavioral psychology, introduced operant conditioning by emphasizing the role of consequences in shaping behavior. This theory builds upon the law of effect proposed by Edward Thorndike, which posits that behaviors followed by satisfying outcomes are likely to be repeated. In contrast, those followed by unsatisfying outcomes are less likely to recur.
Edward Thorndike's foundational work involved studying learning in animals, particularly using puzzle boxes...
The Behavioral Perspective on Personality01:19

The Behavioral Perspective on Personality

Behaviorists view personality as primarily shaped by environmental reinforcements and consequences. According to this perspective, behavior is influenced by external stimuli, and individuals adjust their actions based on rewards and punishments. Over time, learning histories — accumulated patterns of reinforcement — play a significant role in shaping personality. Behaviors that lead to positive outcomes are reinforced, while those resulting in negative outcomes are diminished. Radical...
Causes of Social Behavior III: Biological and Environmental Influences01:28

Causes of Social Behavior III: Biological and Environmental Influences

Social behavior is a complex phenomenon that arises from the interaction between biological predispositions and environmental influences. This intricate interplay shapes how individuals think, feel, and act in various social contexts. Understanding these mechanisms requires insights from psychology, neuroscience, genetics, and evolutionary theory.Environmental Influences on Social BehaviorEnvironmental factors, including temperature, odors, and visual stimuli, play a crucial role in shaping...
Social Psychology and Individual Behavior01:29

Social Psychology and Individual Behavior

Social psychology examines how group dynamics, emotions, and cultural influences shape individual actions and decision-making. These elements interact to form behavioral patterns that affect personal choices and social interactions.The Role of Group DynamicsGroups play a crucial role in shaping behavior by reinforcing norms and expectations. Individuals derive a sense of self from group membership, often aligning their behaviors with group norms to maintain social cohesion. For example, an...

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Related Experiment Video

Updated: Jun 19, 2026

An Automated T-maze Based Apparatus and Protocol for Analyzing Delay- and Effort-based Decision Making in Free Moving Rodents
07:42

An Automated T-maze Based Apparatus and Protocol for Analyzing Delay- and Effort-based Decision Making in Free Moving Rodents

Published on: August 2, 2018

Dopamine, behavioral economics, and effort.

John D Salamone1, Merce Correa, Andrew M Farrar

  • 1Department of Psychology, University of Connecticut Storrs, CT 06269-1020, USA.

Frontiers in Behavioral Neuroscience
|October 15, 2009
PubMed
Summary

Brain dopamine systems in the nucleus accumbens regulate behavioral activation and effort, not just reward. Dopamine depletion impacts motivation based on task difficulty, influencing choices toward less demanding behaviors.

Keywords:
activationanergiadepressionmotivationnucleus accumbenspsychomotor slowingreinforcementreward

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Related Experiment Videos

Last Updated: Jun 19, 2026

An Automated T-maze Based Apparatus and Protocol for Analyzing Delay- and Effort-based Decision Making in Free Moving Rodents
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Published on: August 2, 2018

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A Conflict Model of Reward-seeking Behavior in Male Rats
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Area of Science:

  • Neuroscience
  • Behavioral Economics
  • Neurobiology

Background:

  • The traditional view of dopamine (DA) in the nucleus accumbens mediating reward is being revised.
  • Current research shifts focus from hedonia to behavioral activation and effort-related functions.

Purpose of the Study:

  • To review the role of nucleus accumbens DA in behavioral activation and effort-based processes.
  • To examine how DA influences motivation and choice behavior in response to varying costs.

Main Methods:

  • Review of existing research on nucleus accumbens DA depletions and antagonism in animal models.
  • Analysis of food-reinforced behavior under different response cost conditions (behavioral economics framework).

Main Results:

  • DA depletions in the nucleus accumbens increase sensitivity to response costs, altering food-seeking behavior.
  • Interference with DA transmission leads to a preference for less effortful tasks.

Conclusions:

  • Nucleus accumbens DA is crucial for regulating effort and behavioral activation, rather than solely mediating primary reward.
  • Findings have implications for understanding addiction, fatigue, and neurological disorders.