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

P300, stimulus intensity, modality, and probability

J Polich1, P C Ellerson, J Cohen

  • 1Department of Neuropharmacology TPC-10, Scripps Research Institute, La Jolla, CA 92037, USA. polich@scripps.edu

International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology
|August 1, 1996
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

AIDS vaccines: is older better?

Science (New York, N.Y.)·1992
Same author

AIDS vaccines. Trials set in high-risk populations.

Science (New York, N.Y.)·1992
Same author

Dingell rips Healy for 'obstructionism'.

Science (New York, N.Y.)·1992
Same author

Meningococcal septicaemia in a C6-deficient patient and effects of plasma transfusion on lipopolysaccharide release.

Lancet (London, England)·1992
Same author

Pediatric AIDS vaccine trials set.

Science (New York, N.Y.)·1992
Same author

A comparative study of imipenem versus piperacillin plus gentamicin in the initial management of febrile neutropenic patients with haematological malignancies.

The Journal of antimicrobial chemotherapy·1992
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

Stimulus intensity significantly impacts the P300 brainwave, affecting its amplitude and speed. These findings are crucial for understanding event-related potentials (ERPs) in practical applications.

Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Psychophysiology

Background:

  • Event-related potentials (ERPs) like the P300 are vital for understanding cognitive processes.
  • Stimulus characteristics, such as intensity and probability, are known to influence ERP components.
  • The specific impact of stimulus intensity on P300 amplitude and latency, particularly in conjunction with target probability, requires further elucidation.

Purpose of the Study:

  • To investigate how auditory and visual stimulus intensity affects the P300 component of event-related potentials (ERPs).
  • To examine the interaction between stimulus intensity and target probability on P300 characteristics.
  • To explore the influence of stimulus intensity on other early ERP components (N100, P200, N200).

Main Methods:

Related Experiment Videos

  • Factorial manipulation of auditory and visual stimulus intensity.
  • Inclusion of target probability as a key variable.
  • Measurement of P300 amplitude and peak latency from electroencephalography (EEG) recordings.
  • Analysis of N100, P200, and N200 components.

    • Main Results:

    • Increased stimulus intensity reliably enhanced P300 amplitude across both auditory and visual modalities.
    • Higher stimulus intensity led to decreased P300 peak latency.
    • These intensity effects were additive with the effects of target stimulus probability.
    • Similar, though less pronounced, intensity effects were observed for N100, P200, and N200 components.

    Conclusions:

    • Stimulus intensity is a significant factor influencing both P300 amplitude and latency.
    • The findings underscore the importance of considering stimulus intensity in ERP research.
    • The results have implications for the application of ERPs in various fields, including diagnostics and human-computer interaction.