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Related Experiment Videos

Color aftereffect contingent on text.

L G Allan, S Siegel, J C Collins

    Perception & Psychophysics
    |August 1, 1989
    PubMed
    Summary
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    English words, even anagrams, can trigger a contingent color aftereffect. Nonwords, however, do not elicit this visual phenomenon, suggesting word meaning influences color perception.

    Area of Science:

    • Psychology
    • Cognitive Science
    • Visual Perception

    Background:

    • Contingent color aftereffects, like the McCollough effect, demonstrate how prior visual experience influences subsequent color perception.
    • Illusory color phenomena are observed in various contexts, including prolonged use of monochrome displays.

    Purpose of the Study:

    • To investigate whether letter strings forming English words can contingently elicit a color aftereffect.
    • To determine if nonword letter strings, even those conforming to English orthography, can elicit a similar aftereffect.
    • To explore the role of linguistic properties in contingent color aftereffects.

    Main Methods:

    • Subjects were presented with alternating chromatic letter strings (green and magenta).
    • Experiments utilized both English words and nonwords as stimuli.

    Related Experiment Videos

  • The capacity of these stimuli to elicit a subsequent color aftereffect was assessed.

    • Main Results:

    • Letter strings forming English words contingently elicited a color aftereffect.
    • This effect was observed even when the word stimuli were anagrams.
    • Nonword letter strings did not elicit a contingent color aftereffect, irrespective of their orthographic regularity.

    Conclusions:

    • The findings suggest that the semantic or lexical properties of letter strings play a crucial role in contingent color aftereffects.
    • This research contributes to understanding the McCollough effect and visually induced color phenomena.
    • The results highlight the interplay between language processing and visual perception.