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

Brain potentials during mental distance judgments.

H J Michalewski1, A W Mohamed Kamel, A Starr

  • 1Department of Neurology, University of California, Irvine 92717.

International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology
|August 1, 1988
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

Implementation of an automated, real-time mortality prediction tool in trauma patients: Can it do more than just predict mortality?

Injury·2025
Same author

Clinical and radiographic predictors for angiography in pelvic trauma: An analysis of 1703 patients.

Injury·2024
Same author

Publisher Correction: Indo-Pacific Walker circulation drove Pleistocene African aridification.

Nature·2022
Same author

Indo-Pacific Walker circulation drove Pleistocene African aridification.

Nature·2021
Same author

Validating the GTP-cyclohydrolase 1-feedback regulatory complex as a therapeutic target using biophysical and in vivo approaches.

British journal of pharmacology·2015
Same author

CARDIOVASCULAR SURGERY.

A listing of research in the cardiovascular field·2014
Same journal

Comparison of slow-paced breathing interventions with and without an inhalation-hold on physiological outcomes: A randomized cross-over pilot study.

International journal of psychophysiology : official journal of the International Organization of Psychophysiology·2026
Same journal

The role of inferior frontal gyrus in emotion regulation: Evidence from fMRI and tDCS investigation.

International journal of psychophysiology : official journal of the International Organization of Psychophysiology·2026
Same journal

Trait anxiety in young adults is more consistently associated with resting-state EEG microstate transitions than with stationary spectral power.

International journal of psychophysiology : official journal of the International Organization of Psychophysiology·2026
Same journal

Neural modulation of emotional-word processing during the attentional blink under varying T1 task demands: An ERP study.

International journal of psychophysiology : official journal of the International Organization of Psychophysiology·2026
Same journal

Attentional resource allocation in the early stages of motor skill learning.

International journal of psychophysiology : official journal of the International Organization of Psychophysiology·2026
Same journal

Operation-specific ERP dynamics of arithmetic processing in children with developmental dyscalculia.

International journal of psychophysiology : official journal of the International Organization of Psychophysiology·2026
See all related articles

This study shows that judging the closeness of alphabet letters affects brain activity. Specific brain potentials (event-related potentials) change when letters are close, suggesting they reflect mental processes.

Area of Science:

  • Cognitive Neuroscience
  • Psychology
  • Neuroscience

Background:

  • Understanding the neural basis of cognitive processes like judgment is crucial.
  • Event-related potentials (ERPs) offer a temporal window into these processes.

Purpose of the Study:

  • To investigate how mental judgments of alphabetic proximity are reflected in visual event-related potentials (ERPs).
  • To explore the relationship between reaction times, subjective judgments, and neural activity.

Main Methods:

  • Recorded visual event-related potentials (ERPs) from 10 healthy subjects.
  • Subjects judged the ordinal proximity of displayed letters to a comparison letter (M).
  • Analyzed reaction times and ERP latency/amplitude variations.

Related Experiment Videos

Main Results:

  • Longer reaction times were observed for letters perceived as 'close' (L, N) to M.
  • A late parietal positive potential (approx. 475 ms) correlated with judgment difficulty.
  • This late potential showed delayed latency and reduced amplitude for 'close' letter judgments.

Conclusions:

  • Mental processes involved in judging alphabetic distance can be studied using event-related potentials (ERPs).
  • Specific ERP components reflect the cognitive load associated with proximity judgments.
  • ERPs provide valuable insights into the neural mechanisms underlying abstract cognitive tasks.