Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Individual variation in directional bias in visual perception.

M Annett

    Perception
    |January 1, 1983
    PubMed
    Summary

    This study reveals consistent directional biases in visual perception, affecting how individuals perceive dot timing and recall letters. These biases, like left-to-right processing, appear innate rather than learned.

    Related Concept Videos

    You might also read

    Related Articles

    Articles linked to this work by shared authors, journal, and citation graph.

    Sort by
    Same author

    Eye dominance in families predicted by the right shift theory.

    Laterality·2004
    Same author

    Non-right-handedness and schizophrenia.

    The British journal of psychiatry : the journal of mental science·2002
    Same author

    Subgroup handedness and the probability of nonright preference for foot or eye and of a nonright-handed parent.

    Perceptual and motor skills·2002
    Same author

    Predicting combinations of left and right asymmetries.

    Cortex; a journal devoted to the study of the nervous system and behavior·2000
    Same author

    Pharmacodynamic effects of ketoprofen on crevicular fluid prostanoids in adult periodontitis.

    Journal of clinical periodontology·2000
    Same author

    The theory of an agnosic right shift gene in schizophrenia and autism.

    Schizophrenia research·1999

    Area of Science:

    • Cognitive Psychology
    • Neuroscience
    • Visual Perception

    Background:

    • Individual differences in visual perception are well-documented.
    • Directional biases, such as reading habits, are often assumed to influence visual processing.
    • The underlying mechanisms of these biases remain incompletely understood.

    Purpose of the Study:

    • To investigate directional biases in visual perception.
    • To examine individual differences in these biases across two distinct tasks.
    • To determine if these biases are influenced by learned habits or cerebral specialization.

    Main Methods:

    • Sixty-five subjects performed two tasks: judging dot onset asynchrony and recalling letter strings.
    • Stimuli were presented in the left visual field (LVF), right visual field (RVF), or bilaterally.
    • Data analysis focused on identifying and correlating directional biases (e.g., left-to-right, right-to-left).

    Main Results:

    • Dot judgments showed an outward-from-center bias and a significant left-to-right (L-R) lateral bias in the overall sample.
    • A minority exhibited a right-to-left (R-L) bias in dot perception.
    • Letter recall accuracy varied, with some subjects showing L-R or R-L gradients, and others a U-shaped pattern.
    • Significant correlations between L-R and R-L biases across tasks suggest a stable underlying foundation.

    Conclusions:

    • Directional biases significantly influence visual perception.
    • These biases are present in both dot-asynchrony judgments and letter recall tasks.
    • Findings suggest these directional biases are not solely due to learned reading habits or hemispheric specialization.

    Related Experiment Videos