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

Ambiguous plaids: switching between coherence and transparency

M von Grünau1, S Dubé

  • 1Department of Psychology, Concordia University, Montréal, Québec, Canada.

Spatial Vision
|January 1, 1993
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

Extraction and validation of a new set of CMS pythia8 tunes from underlying-event measurements.

The European physical journal. C, Particles and fields·2020
Same author

Searches for physics beyond the standard model with the <math></math> variable in hadronic final states with and without disappearing tracks in proton-proton collisions at <math> </math>.

The European physical journal. C, Particles and fields·2020
Same author

Search for Physics beyond the Standard Model in Events with Overlapping Photons and Jets.

Physical review letters·2020
Same author

Measurements of triple-differential cross sections for inclusive isolated-photon+jet events in <math></math> collisions at <math> </math>.

The European physical journal. C, Particles and fields·2019
Same author

Measurement of the average very forward energy as a function of the track multiplicity at central pseudorapidities in proton-proton collisions at <math> </math>.

The European physical journal. C, Particles and fields·2019
Same author

Search for Low-Mass Quark-Antiquark Resonances Produced in Association with a Photon at sqrt[s]=13  TeV.

Physical review letters·2019
Same journal

Comment on 'angle illusion on a picture's surface' by Hammad et al. (2008).

Spatial vision·2009
Same journal

Feature-based attentional modulation increases with stimulus separation in divided-attention tasks.

Spatial vision·2009
Same journal

Spatial distance between target and irrelevant patch modulates detection in a texture segmentation task.

Spatial vision·2009
Same journal

Inhibition related impairments of coherent motion perception in the attention-induced motion blindness paradigm.

Spatial vision·2009
Same journal

Recognition units in reading: backward masking experiments.

Spatial vision·2009
Same journal

Spatial-temporal modeling of interactive image interpretation.

Spatial vision·2009
See all related articles

Adaptation to visual motion perception, like transparency or coherence in plaid patterns, influences subsequent perception. Independent adaptation of underlying neural processes explains switching between these distinct visual experiences.

Area of Science:

  • Visual perception
  • Neuroscience
  • Computational vision

Background:

  • Plaid patterns, formed by two intersecting gratings, elicit ambiguous visual motion perception.
  • Observers can perceive either transparency (gratings sliding past each other) or coherence (a single plaid moving in a new direction).
  • Prolonged viewing leads to perceptual switching between these alternative interpretations.

Purpose of the Study:

  • To investigate the adaptation mechanisms underlying the switching between plaid motion percepts.
  • To determine if adaptation affects coherence and transparency independently.

Main Methods:

  • Adaptation to unambiguous coherence or transparency stimuli.
  • Presentation of ambiguous plaid test stimuli after adaptation.

Related Experiment Videos

  • Analysis of the duration of consecutive perceptual episodes (coherence vs. transparency).
  • Control experiments to rule out alternative explanations like intersection adaptation or motion aftereffects.

    • Main Results:

    • Adaptation to coherence reduced the time coherence was perceived in ambiguous displays.
    • Adaptation to transparency reduced the time transparency was perceived.
    • Analysis of episode durations indicated independent adaptation of the underlying processes.

    Conclusions:

    • Perceptual switching between plaid motion alternatives involves distinct neural processes.
    • These processes, likely at different cortical levels, can be adapted independently.
    • Findings support a model where adaptation influences the stability of competing motion representations.