The true P3 is hard to see: Some comments on Kok's (1986) paper on degraded stimuli

Rolf Verleger

doi:10.1016/0301-0511(88)90004-X

The true P3 is hard to see: Some comments on Kok's (1986) paper on degraded stimuli

Rolf Verleger^*

^*Corresponding author for this work

Department of Neurology

22 Citations (Scopus)

Abstract

Kok (1986) investigated why P3 amplitudes are reduced when stimuli are degraded. He proposed that a positive moment-related component might overlap P3 after intact stimuli and a negative one after degraded stimuli ("MRP overlap" hypothesis). Discussing his findings, it is suggested that MRP overlap can only account for the result if another overlap hypothesis ("nogo overlap") is added. But even this combined hypothesis cannot explain reducing effects of degradation found in other paradigms. While other overlap hypotheses have been proposed in the literature, the most parsimonious hypothesis is to assume that P3 itself gets smaller after degraded stimuli.

Original language	English
Journal	Biological Psychology
Volume	27
Issue number	1
Pages (from-to)	45-50
Number of pages	6
ISSN	0301-0511
DOIs	https://doi.org/10.1016/0301-0511(88)90004-X
Publication status	Published - 01.01.1988

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Academic Focus: Center for Brain, Behavior and Metabolism (CBBM)

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10.1016/0301-0511(88)90004-X

Cite this

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abstract = "Kok (1986) investigated why P3 amplitudes are reduced when stimuli are degraded. He proposed that a positive moment-related component might overlap P3 after intact stimuli and a negative one after degraded stimuli ({"}MRP overlap{"} hypothesis). Discussing his findings, it is suggested that MRP overlap can only account for the result if another overlap hypothesis ({"}nogo overlap{"}) is added. But even this combined hypothesis cannot explain reducing effects of degradation found in other paradigms. While other overlap hypotheses have been proposed in the literature, the most parsimonious hypothesis is to assume that P3 itself gets smaller after degraded stimuli.",

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AB - Kok (1986) investigated why P3 amplitudes are reduced when stimuli are degraded. He proposed that a positive moment-related component might overlap P3 after intact stimuli and a negative one after degraded stimuli ("MRP overlap" hypothesis). Discussing his findings, it is suggested that MRP overlap can only account for the result if another overlap hypothesis ("nogo overlap") is added. But even this combined hypothesis cannot explain reducing effects of degradation found in other paradigms. While other overlap hypotheses have been proposed in the literature, the most parsimonious hypothesis is to assume that P3 itself gets smaller after degraded stimuli.

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The true P3 is hard to see: Some comments on Kok's (1986) paper on degraded stimuli

Abstract

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