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Related Concept Videos

Associative Learning01:27

Associative Learning

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.
Classical conditioning, also known...
Cognitive Learning01:21

Cognitive Learning

Cognitive learning is based on purposive behavior, incidental learning, and insight learning.
E. C. Tolman's theory of purposive behavior emphasizes that much behavior is goal-directed. He argued that to understand behavior, we must look at the entire sequence of actions leading to a goal. For instance, high school students study hard, not just due to past reinforcement but also to achieve the goal of getting into a good college.
Tolman introduced the idea that behavior is influenced by...
Purposive Learning01:22

Purposive Learning

E. C. Tolman emphasized the purposiveness of behavior — the idea that much of our behavior is goal-directed. For instance, employees who aim for a promotion work diligently to meet their targets. Tolman argued that when classical conditioning and operant conditioning occur, the organism acquires certain expectations. In classical conditioning, a child might fear a dog because they expect it to bite. In operant conditioning, a person might consistently work overtime because they expect a bonus...
Instinctive Drift01:05

Instinctive Drift

Instinctive drift refers to the tendency of animals to revert to their innate behaviors despite repeated reinforcement. Breland and Breland demonstrated this concept in an experiment with a raccoon. The raccoon was trained to pick up two coins and place them in a container in exchange for food. Initially, the raccoon learned to associate the coins with food, making them a conditioned stimulus or a substitute for food. However, over time, the raccoon became less willing to put the coins into the...
Real-World Application of Classical Conditioning01:15

Real-World Application of Classical Conditioning

Classical conditioning not only includes the initial pairing of stimuli but also extends to more complex forms, such as higher-order conditioning. Higher-order conditioning involves creating associations beyond the primary conditioned stimulus, resulting in a chain of conditioned responses.
Higher-order, or second-order, conditioning occurs when a neutral stimulus becomes associated with an already established conditioned stimulus through repeated pairings. For instance, if a dog has been...
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

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An Operant Intra-/Extra-dimensional Set-shift Task for Mice
08:35

An Operant Intra-/Extra-dimensional Set-shift Task for Mice

Published on: January 22, 2016

Contrast-reversal abolishes perceptual learning.

Zahra Hussain1, Allison B Sekuler, Patrick J Bennett

  • 1Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, ON, Canada L8S 4K1. hussaiz@mcmaster.ca

Journal of Vision
|September 18, 2009
PubMed
Summary
This summary is machine-generated.

Perceptual learning of texture identification is impaired by novel, rotated, or contrast-reversed stimuli. This learning generalization deficit was consistent across transformations and unaffected by awareness of stimulus changes.

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Visual Perception

Background:

  • Perceptual learning enhances performance on specific visual tasks.
  • Understanding how learning generalizes to new stimuli is crucial for cognitive and neural models.
  • Stimulus transformations like rotation and contrast reversal can impact generalization.

Purpose of the Study:

  • To investigate the effects of contrast reversal on perceptual learning in a texture identification task.
  • To compare the generalization of learning under novel, rotated, and contrast-reversed conditions.
  • To explore the role of awareness in modulating the effects of stimulus transformations on learning.

Main Methods:

  • A 10-alternative forced-choice (10AFC) texture identification task was used.
  • Four groups of subjects performed the task over two days.
  • Groups experienced either identical, novel, 180-degree rotated, or contrast-reversed textures on the second day.

Main Results:

  • Accuracy improved on Day 1 for all groups.
  • Accuracy significantly decreased on Day 2 for groups with novel, rotated, or contrast-reversed stimuli.
  • The performance drop was equivalent across novel, rotated, and contrast-reversed conditions.
  • Awareness of stimulus transformations did not mitigate the observed performance decrease.

Conclusions:

  • Contrast reversal, 180-degree rotation, and novel stimuli similarly impair the generalization of perceptual learning.
  • Knowledge of stimulus transformations does not reduce the negative impact on learning generalization.
  • These findings have implications for understanding the neural mechanisms underlying visual pattern identification and learning.