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

Serial and parallel search in pattern vision?

S B Steinman1

  • 1College of Optometry, University of Houston, TX 77004.

Perception
|January 1, 1987
PubMed
Summary
This summary is machine-generated.

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

Vision and attention. II: Is visual attention a mechanism through which a deficient magnocellular pathway might cause reading disability?

Optometry and vision science : official publication of the American Academy of Optometry·1998
Same author

Vision and attention. I: Current models of visual attention.

Optometry and vision science : official publication of the American Academy of Optometry·1998
Same author

Transient visual attention is dominated by the magnocellular stream.

Vision research·1997
Same author

Motion perception deficits in glaucomatous optic neuropathy.

Vision research·1995
Same author

Visual attention mechanisms show a center-surround organization.

Vision research·1995
Same author

Topography of the age-related decline in motion sensitivity.

Optometry and vision science : official publication of the American Academy of Optometry·1995

Human visual search for combined positional cues initially shows parallel processing for disparity but serial for others. Practice shifts all searches to parallel processing, suggesting feature-based perceptual segregation.

Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Visual Perception

Background:

  • Investigating how humans process combined visual stimulus dimensions is crucial for understanding visual perception.
  • Previous research explored visual search for single positional features, but the processing of combined features remained less understood.

Purpose of the Study:

  • To examine visual search for combinations of suprathreshold positional information, including vernier offsets, stereoscopic disparity, lateral separation, and orientation.
  • To determine if the search for combined features is processed in parallel or serially and how practice affects this processing.

Main Methods:

  • Participants performed visual search tasks involving conjunctions of different positional cues.
  • Reaction times were measured in relation to the number of distracting stimuli to infer parallel versus serial processing.

Related Experiment Videos

  • The effect of practice on search performance was assessed.

    • Main Results:

    • Initial search for conjunctions of stereoscopic disparity with vernier offsets or orientation was parallel.
    • Search for conjunctions of vernier offsets and orientation, or lateral separation with other cues, was initially serial.
    • Practice led to a significant shift from serial to parallel search for all tested conjunctions and single features.

    Conclusions:

    • The findings suggest that visual search processing can shift from serial to parallel with practice.
    • This highlights the role of perceptual segregation based on features like disparity, orientation, and separation in visual search.
    • Results may necessitate a reinterpretation of studies using the Treisman visual search paradigm.