Cited by 1,147Neural and Behavioral Psychology StudiesEEG and Brain-Computer InterfacesNeural dynamics and brain function

A Metric for Thought: A Comparison of P300 Latency and Reaction Time

McCarthy, Gregory, Donchin, Emanuel·1981·Science

Abstract

We confirm that the latency of the P300 component of the human event-related potential is determined by processes involved in stimulus evaluation and categorization and is relatively independent of response selection and execution. Stimulus discriminability and stimulus-response compatibility were manipulated independently in an "additive-factors" design. Choice reaction time and P300 latency were obtained simultaneously for each trial. Although reaction time was affected by both discriminability and stimulus-response compatibility, P300 latency was affected only by stimulus discriminability.

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Crossref · 10.1126/science.7444452

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  • Easier categorization is reflected in larger amplitudes.

    “Differences in P3 latencies have been shown to correspond to the duration of stimulus evaluation32,47, with easier categorization reflected in larger amplitudes (e.g.32,48).”
  • The time-to-peak of the P300 component recorded in the parietal cortical area increased with the difficulty of stimulus discriminability and reaction time but was indifferent to stimulus-response compatibility.

    “Interestingly, it was found that the time-to-peak of the P300 component recorded in the parietal cortical area increased with the difficulty of stimulus discriminability and RT but was indifferent to the stimulus-response compatibility (Kutas et al., 1977; McCarthy and Donchin, 1981).”

    From Decision Making in Recurrent Neuronal Circuits (2008) · cites this paper as McCarthy and Donchin, 1981

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Authors
McCarthy, G., & Donchin, E.
Affiliations
University of Illinois Urbana-Champaign (US)
Venue
Science
Published
1981-01-02
Volume
211
Issue
4477
Pages
77-80
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2042306717
Cited by
1,147
References
12
Citations by year
2026: 7 · 2025: 11 · 2024: 9 · 2023: 18 · 2022: 11 · 2021: 17 · 2020: 23 · 2019: 26 · 2018: 20 · 2017: 29 · 2016: 25 · 2015: 26 · 2014: 28 · 2013: 34 · 2012: 25
FWCI
19.92
Type
journal article
Language
en
Open access
closed
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
  • Digital Commons - University of South Florida (University of South Florida) (submittedVersion)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
  • Life Sciences › Neuroscience › Cognitive Neuroscience › EEG and Brain-Computer Interfaces
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
Keywords
P300, event-related potentials, P300 latency, reaction time, stimulus evaluation, stimulus classification, stimulus-response compatibility, stimulus discriminability, choice reaction time, response selection
MeSH terms
Brain, Cognition, Discrimination, Psychological, Electroencephalography, Humans, Thinking, Time Factors

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