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Information is everywhere and its presentation—such as how and when items are presented—can impact our perceptions and decisions surrounding the info. This broad concept umbrellas framing effects—influences that occur due to the way information is framed in its appearance, whether it’s purely the order or the specific wording of a message. Let’s take a look at numerous ways in which two versions of something can objectively say the same thing, yet we respond in...
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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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The structure of sequential effects.

Dinis Gökaydin1, Daniel J Navarro1, Anna Ma-Wyatt1

  • 1School of Psychology, University of Adelaide.

Journal of Experimental Psychology. General
|November 3, 2015
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Summary
This summary is machine-generated.

This study uncovers a 3-component structure explaining individual differences in sequential effects, offering a unified model for diverse experimental results and stimulus-response processing.

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Area of Science:

  • Cognitive psychology
  • Human factors
  • Psychophysics

Background:

  • Sequential effects have been studied for over a century.
  • Individual variations in sequential effects are significant but poorly understood.
  • Existing research lacks a unified model for diverse sequential effect patterns.

Purpose of the Study:

  • To identify underlying causes of variation in sequential effects.
  • To understand individual differences in sequential effect patterns.
  • To develop a unified descriptive model for sequential effects.

Main Methods:

  • Principal Component Analysis (PCA) was applied to 158 individual experimental results.
  • The analysis aimed to identify latent variables influencing sequential effects.
  • PCA was used to uncover hidden structures within the data.

Main Results:

  • A latent structure of 3 components (2 main, 1 minor) related to sequential effects was identified.
  • The 2 main components are hypothesized to relate to separate stimulus and response processing.
  • The minor component may arise from processing delays.

Conclusions:

  • This research provides a unified model for diverse sequential effects.
  • The identified latent structure explains individual differences in sequential effects.
  • The model aids in understanding the influence of stimulus interval on sequential effects.