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, habituation, and response mode

G S Lew1, J Polich

  • 1University of California, San Diego 92037.

Physiology & Behavior
|January 1, 1993
PubMed
Summary
This summary is machine-generated.

Habituation of the P300 event-related brain potential (ERP) is less pronounced when participants count target tones compared to when they press a button. This suggests attentional resource allocation influences P300 habituation.

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

Hemispheric differences for visual matrix processing: stimulus size and spatial frequency effects.

Brain and cognition·2001
Same author

P3a from a passive visual stimulus task.

Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology·2001
Same author

P300 asymmetry in schizophrenia: a meta-analysis.

Psychiatry research·2001
Same author

Wavelet analysis of P3a and P3b.

Brain topography·2001
Same author

P300 and alpha event-related desynchronization (ERD).

Psychophysiology·2001
Same author

Auditory P3a deficits in male subjects at high risk for alcoholism.

Biological psychiatry·2001
Same journal

DHEA model of PCOS selectively alters reproductive but not metabolic or behavioral phenotypes in female Long-Evans rats.

Physiology & behavior·2026
Same journal

Importance of Apparatus Scaling in Novel Object Recognition for Juvenile and Adult Rats.

Physiology & behavior·2026
Same journal

Chronic activity-based anorexia alters food intake microstructure in a time-dependent manner in female rats.

Physiology & behavior·2026
Same journal

Apelin receptor antagonist (ML221) facilitates memory reconsolidation in novel object recognition task.

Physiology & behavior·2026
Same journal

Are humans adapted to the world they have developed?

Physiology & behavior·2026
Same journal

50-kHz ultrasonic vocalization subtypes emitted by female rats anticipating same-sex social interaction.

Physiology & behavior·2026
See all related articles

Area of Science:

  • Cognitive Neuroscience
  • Psychophysiology
  • Auditory Event-Related Potentials

Background:

  • The P300 (or P3) is a positive-going event-related brain potential (ERP) typically observed around 300 ms after stimulus onset.
  • P3 amplitude is known to be sensitive to stimulus probability and task relevance, reflecting attentional allocation and context updating.
  • Habituation, a decrease in response to repeated stimuli, can affect ERP amplitudes and requires investigation in different task contexts.

Purpose of the Study:

  • To investigate the influence of different response tasks on the habituation of the P300 ERP.
  • To examine how the allocation of attentional resources during target detection affects P300 habituation.
  • To compare habituation patterns between a counting task and a button-press task for auditory target stimuli.

Related Experiment Videos

Main Methods:

  • Auditory discrimination paradigm with a target tone probability of 0.20.
  • Two response conditions: participants either counted target tones or pressed a button to target tones.
  • Consecutive blocks of trials were recorded to assess P3 amplitude habituation across blocks and electrode sites.

Main Results:

  • The counting task exhibited significantly less P300 amplitude habituation compared to the button-press task.
  • A strong interaction was observed between the response mode (counting vs. button-press) and trial blocks.
  • These findings were consistent across all recorded electrode sites.

Conclusions:

  • Habituation of the P300 ERP amplitude is modulated by the level of attentional resources engaged by the task.
  • The counting task, requiring more sustained attentional processing, leads to reduced P300 habituation.
  • The button-press task, involving a simpler motor response, shows greater P300 habituation, indicating less resource allocation.