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Four assumptions about invariance in perception.

J E Cutting

    Journal of Experimental Psychology. Human Perception and Performance
    |April 1, 1983
    PubMed
    Summary
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    The concept of invariance in perception is increasingly used but relies on unexamined mathematical assumptions. This article critically assesses these assumptions to ensure the term

    Area of Science:

    • Cognitive Science
    • Philosophy of Mind
    • Mathematical Psychology

    Background:

    • The concept of invariance is gaining prominence in theories of perception.
    • Its mathematical origins carry implicit assumptions when applied to perceptual phenomena.

    Purpose of the Study:

    • To identify and critically evaluate the underlying assumptions of using mathematical invariance in perception.
    • To foster a more nuanced understanding of perceptual invariants and their limitations.

    Main Methods:

    • Conceptual analysis of the term 'invariance' across mathematics and perception.
    • Examination of the validity of applying mathematical principles to perceptual processes.
    • Discussion of the implications for understanding perceptual stability and variability.

    Related Experiment Videos

    Main Results:

    • Identified key assumptions: mathematics as a perceptual language, transportability of mathematical truths, utility of mathematical imports, and absoluteness of perceptual invariants.
    • Highlighted that perceptual invariants may not be absolute and are subject to threshold effects, unlike their mathematical counterparts.

    Conclusions:

    • While the use of invariance in perception is valuable, its mathematical underpinnings require careful scrutiny.
    • Acknowledging the limitations and assumptions associated with mathematical invariance is crucial for its continued effective application in perceptual science.