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

Locus and persistence of capacity limitations in visual information processing.

J A Kleiss, D M Lane

    Journal of Experimental Psychology. Human Perception and Performance
    |May 1, 1986
    PubMed
    Summary

    The perception of letters is not always without capacity limitations, contrary to previous beliefs. This study shows that parallel processing of letters is limited, especially when features are not easily distinguished.

    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

    Testing Main Effects Of Continuous Variables In Nonadditive Models.

    Multivariate behavioral research·2016
    Same author

    Effectiveness of slow motion video compared to real time video in improving the accuracy and consistency of subjective gait analysis in dogs.

    Open veterinary journal·2015
    Same author

    Solid state spatially resolved 1H and 19F nuclear magnetic resonance spectroscopy of dental materials by stray-field imaging.

    Journal of materials science. Materials in medicine·2004
    Same author

    Cord serum lipid and apolipoprotein levels in preterm infants with the neonatal respiratory distress syndrome.

    The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians·2002
    Same author

    Third report of the National Cholesterol Education Program (NCEP. III): A switch from dietary modification to risk factor assessment.

    Current opinion in investigational drugs (London, England : 2000)·2001
    Same author

    The application of magnetic resonance microimaging to the visible light curing of dental resins. 3. Stray-field nuclear magnetic resonance imaging (STRAFI).

    Dental materials : official publication of the Academy of Dental Materials·2001

    Area of Science:

    • Cognitive Psychology
    • Visual Perception
    • Attention Studies

    Background:

    • Previous research suggested parallel processing of stimuli like digits and letters occurs without capacity limits.
    • Recent findings indicate that only stimulus features, not whole stimuli, are processed in parallel.
    • A discrepancy exists between studies showing parallel processing and those suggesting feature-level parallel processing.

    Purpose of the Study:

    • To reconcile conflicting evidence on parallel processing and capacity limitations in visual perception.
    • To investigate whether letter perception is truly capacity-free or subject to limitations.
    • To test the predictions of feature integration theory of attention.

    Main Methods:

    • Utilized the simultaneous/successive detection paradigm.

    Related Experiment Videos

  • Employed stimuli previously used in studies indicating parallel processing and feature-based parallel processing.
  • Conducted experiments with letter/digit targets and distractors, including R/PQ and R/PB stimuli.
  • Assessed the impact of practice on capacity limitations.

    • Main Results:

    • Large differences in performance were observed between simultaneous and successive presentations for R targets among distractors (PQ, PB), aligning with feature integration theory.
    • False-alarm rates were significantly higher in simultaneous conditions for R/PQ stimuli.
    • Digit targets among letter distractors did not show the same pattern, suggesting context-dependent limitations.
    • Extensive practice did not eliminate observed capacity limitations.

    Conclusions:

    • The notion of capacity-free letter perception has limited generality.
    • Visual perception of letters is not always processed in parallel without capacity limitations.
    • Feature integration theory provides a framework for understanding these capacity limitations in visual search.