Jove
Visualize
Contact Us

Related Experiment Videos

Noisy templates explain area summation.

W McIlhagga1, A Pääkkönen

  • 1Psychological Laboratory, Copenhagen University, Denmark. william@axp.psl.ku.dk

Vision Research
|May 18, 1999
PubMed
Summary

The noisy template model explains visual detection phenomena like Piper's Law and critical area effects. It accounts for area summation and contrast discrimination, offering insights into visual perception.

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

Repetition suppression in transcranial magnetic stimulation-induced motor-evoked potentials is modulated by cortical inhibition.

Neuroscience·2015
Same author

The auditory-evoked arousal modulates motor cortex excitability.

Neuroscience·2014
Same author

Repetition suppression in the cortical motor and auditory systems resemble each other--a combined TMS and evoked potential study.

Neuroscience·2013
Same author

Accuracy of automatic analysis of ambulatory recordings of nocturnal breathing disorders is significantly instrumentation dependent.

Journal of medical engineering & technology·2009
Same author

Design, construction and evaluation of an ambulatory device for screening of sleep apnea.

Medical & biological engineering & computing·2008
Same author

Efficient reduction of stimulus artefact in TMS-EEG by epithelial short-circuiting by mini-punctures.

Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology·2007
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
  • Signal detection theory

Background:

  • The ideal detector model is used for signal detection with known patterns.
  • The noisy template model is a variant that incorporates noise into the template matching process.
  • Understanding visual detection mechanisms is crucial for psychophysics.

Purpose of the Study:

  • To outline the predictions of the noisy template model regarding area summation.
  • To evaluate the model's ability to explain established psychophysical laws and phenomena.
  • To compare the noisy template model with the ideal observer model.

Main Methods:

  • The study theoretically outlines the predictions of the noisy template model.
  • It involves cross-correlating a noisy template with a signal.
  • The model's predictions are analyzed concerning area summation and contrast discrimination.

Main Results:

  • The noisy template model successfully explains Piper's Law, similar to the ideal observer.
  • It also accounts for critical area phenomena in visual detection.
  • The model explains the absence of area summation in contrast discrimination tasks.

Conclusions:

  • The noisy template model provides a comprehensive explanation for various visual detection phenomena.
  • It offers a more complete account of area summation and contrast discrimination than previously proposed.
  • This model advances our understanding of how noise affects visual signal processing.

Related Experiment Videos