Jove
Visualize
Contact Us

Related Experiment Videos

Relative judgment seems to be the key: revisiting the Beck effect.

R Kimchi1, D Navon

  • 1Department of Psychology, University of Haifa, Israel. rkimchi@psy.haifa.ac.il

Journal of Experimental Psychology. Human Perception and Performance
|May 16, 2000
PubMed
Summary

Orientation disparity is more easily detected than line arrangement disparity when multiple stimuli are presented. This effect requires simultaneous presentation and relative judgment, independent of stimulus number, location, or adjacency.

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

Guardianship for the severely mentally ill.

Medicine and law·2000
Same author

[Guardianship nomination: rethinking the decision making process].

Harefuah·2000
Same author

[Severe mental disorders--need to reduce punishment for murder?].

Harefuah·2000
Same author

The perceptual organization of visual objects: a microgenetic analysis.

Vision research·2000
Same author

Clinical assessment of competency to consent to psychiatric hospitalization.

International journal of law and psychiatry·1999
Same author

Insight and competence to consent to psychiatric hospitalization.

Medicine and law·1997
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

Area of Science:

  • Visual perception
  • Psychophysics
  • Computational neuroscience

Background:

  • Orientation disparity is more discriminable than line arrangement disparity in multiple-stimulus displays.
  • Previous research suggests this effect's underlying mechanisms require further investigation.

Purpose of the Study:

  • To investigate the source and locus of the orientation disparity advantage.
  • To determine the necessary conditions for the manifestation of this perceptual effect.

Main Methods:

  • Seven experiments were conducted using discrimination tasks involving upright and tilted Ts, and L-shapes.
  • Stimulus presentation varied between single and multiple contexts, with manipulations in the number of stimuli, location uncertainty, and adjacency.

Related Experiment Videos

Main Results:

  • The orientation disparity advantage proved insensitive to the number of stimuli, location uncertainty, and adjacency.
  • The effect was observed only when disparate stimuli were presented simultaneously.

Conclusions:

  • Simultaneous presentation and relative judgment are necessary for the orientation disparity advantage.
  • The effect emerges during tasks requiring perception of homogeneity or salience, suggesting a role for relative comparison mechanisms.