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

Extracting thresholds from noisy psychophysical data.

W H Swanson1, E E Birch

  • 1Retina Foundation of the Southwest, Dallas, Texas 75231.

Perception & Psychophysics
|May 1, 1992
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

Using high-density perimetry to explore new approaches for characterizing visual field defects.

Vision research·2023
Same author

Quality of life and functional vision concerns of children with cataracts and their parents.

Eye (London, England)·2016
Same author

A binocular iPad treatment for amblyopic children.

Eye (London, England)·2014
Same author

Longitudinal changes in refractive error of children with infantile esotropia.

Eye (London, England)·2010
Same author

Short wavelength sensitive cone acuity: individual differences and clinical use.

Applied optics·2010
Same author

Interoperator variability in images obtained by laser polarimetry of the nerve fiber layer.

Journal of glaucoma·2009
Same journal

Response organization in selective adaptation to speech sounds.

Perception & psychophysics·2014
Same journal

Reaction times to comparisons within and across phonetic categories.

Perception & psychophysics·2012
Same journal

Auditory and phonetic memory codes in the discrimination of consonants and vowels.

Perception & psychophysics·2012
Same journal

Simple and contingent adaptation effects for place of articulation in stop consonants.

Perception & psychophysics·2012
Same journal

Auditory property detectors and processing place features in stop consonants.

Perception & psychophysics·2012
Same journal

Visual working memory for line orientations and face identities.

Perception & psychophysics·2008
See all related articles

Computer simulations reveal that high extraneous noise in psychophysical studies with infants or patients leads to biased threshold estimates. Strategies for data rejection improve accuracy, especially when minimizing extraneous noise in experimental designs.

Area of Science:

  • Vision science
  • Psychophysics
  • Developmental psychology

Background:

  • Psychophysical studies with infants and patients face limitations like small trial numbers.
  • Accurate threshold estimation is crucial for these populations.

Purpose of the Study:

  • To evaluate threshold estimates under conditions with limited data.
  • To model the impact of stimulus-related and extraneous noise on psychophysical data.
  • To develop strategies for handling noisy datasets in infant and patient studies.

Main Methods:

  • Computer simulations using psychometric functions with two noise types.
  • Analysis of 1,026 infant visual function test datasets.
  • Development and testing of data rejection strategies.

Related Experiment Videos

Main Results:

  • High extraneous noise significantly biased and reduced precision of threshold estimates.
  • Estimates of extraneous noise itself were also affected by high noise levels.
  • Real-world infant visual function data often contains considerable extraneous noise.

Conclusions:

  • Experimental paradigms should minimize extraneous noise for reliable infant vision testing.
  • Ignoring extraneous noise can lead to underestimation of test-retest reliability and overestimation of interocular differences.
  • Data analysis methods must account for noise to ensure accurate psychophysical results in vulnerable populations.