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

The pointillism method for creating stimuli suitable for use in computer-based visual contrast sensitivity testing.

Travis H Turner1

  • 1Joint Doctoral Program in Clinical Psychology, San Diego State University, San Diego, CA, USA. tturner@ucsd.edu

Journal of Neuroscience Methods
|February 9, 2005
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

Patient-Reported Communication Decline Following Deep Brain Stimulation in Parkinson's Disease.

Movement disorders clinical practice·2026
Same author

Consensus expert recommendations for referral of Parkinson's disease patients for deep brain stimulation surgery.

NPJ Parkinson's disease·2026
Same author

MDS PD e-Diary: A New Patient-Centered Digital Tool in Development for People with Parkinson's Disease.

Movement disorders clinical practice·2025
Same author

Does Right-Hand Motor Impairment Affect Performance on Cognitive Testing in Parkinson's Disease?

Movement disorders clinical practice·2025
Same author

High Praise for Domen and Colleagues.

Movement disorders : official journal of the Movement Disorder Society·2024
Same author

The Rapid Access Memory Program for Addressing Concerns of Incipient Dementia in Academic Primary Care Settings.

Journal of geriatric psychiatry and neurology·2023
Same journal

Time as the language of Behavior: events, sequences, patterns and meanings.

Journal of neuroscience methods·2026
Same journal

Detection of cochlear microphonic for differential diagnosis between auditory neuropathy mice and noise-induced sensorineural hearing loss mice.

Journal of neuroscience methods·2026
Same journal

Assessment metrics for pain control in rats: A methodological commentary.

Journal of neuroscience methods·2026
Same journal

Infant EEG preprocessing pipelines: A capability framework and current gaps in practice.

Journal of neuroscience methods·2026
Same journal

Methods for measuring neural activity during voluntary wheel running.

Journal of neuroscience methods·2026
Same journal

Serotype-dependent differences in AAV cellular transduction rates in the hypothalamus of Arctic ground squirrels.

Journal of neuroscience methods·2026
See all related articles

A new pointillism method (PM) offers a flexible, computerized approach to measuring visual contrast sensitivity. This technique addresses limitations of existing methods, enabling greater experimental control and standardization for research applications.

Area of Science:

  • Neuropsychology
  • Computer Vision
  • Ophthalmology

Background:

  • Measuring visual contrast sensitivity is crucial in neuropsychological and clinical research.
  • Existing methods for contrast sensitivity testing are often expensive, lack standardization, or have limited reliability.
  • Current tests lack full control over stimulus characteristics like rotation, waveform, contrast, and spatial frequency.

Purpose of the Study:

  • To introduce and describe the pointillism method (PM) for generating visual stimuli.
  • To overcome limitations of standard monitors (e.g., 256-bit color depth) for contrast sensitivity research.
  • To provide researchers with a flexible, computerized tool for experimental needs.

Main Methods:

  • The pointillism method (PM) utilizes MATLAB software to create stimuli.

Related Experiment Videos

  • Stimuli are generated using mathematical and stochastic components to approximate desired contrast levels.
  • The method was examined using sine and square-wave image sets across various contrast values.

    • Main Results:

    • Results indicate the pointillism method (PM) is suitable for most experimental applications in visual contrast sensitivity research.
    • The method allows for precise control over stimulus characteristics, enhancing experimental design.
    • Performance was evaluated for sine and square-wave stimuli.

    Conclusions:

    • The pointillism method (PM) presents a viable solution for advanced visual contrast sensitivity measurement.
    • Further validation and reliability studies are recommended for the current version.
    • The method offers potential for diverse experimental applications in vision science and neuropsychology.