Evoked cortical potentials and discrimination problem-solving in humans

Wilson, Lynda E; Harter, M. Russell; Wells, Herbert

doi:10.1016/0013-4694(73)90146-6

Cited by 37 publications

(3 citation statements)

References 16 publications

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“…P300 increased continuously during the test session. Since learning effects have to be expected when a single pseudorandom sequence of stimuli is repeatedly pre sented [Naatanen, 1975], the gradual P300 increase might be discussed in terms of an increasing facilitation of stimulus evaluation and decision making as pre viously suggested by Peters et al [ 1977] and Wilson et al [1973], However, this acquisition effect does not neces sarily result in better performance, since P300 and per formance developed in a differential way from the first to the second interval of the postsmoking trial.…”

Section: Discussionmentioning

confidence: 99%

Rapid Information Processing and Concomitant Event-Related Brain Potentials in Smokers Differing in CO Absorption

Michel¹,

Buzzi²,

Woodson³

et al. 1987

Neuropsychobiology

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The present study relates subject-paced rapid information processing to different components of event-related brain potentials in an attempt to gain more information about changes in mental performance in relation to alveolar smoke absorption as assessed by expired air CO measurement. The task consisted in the presentation of pseudorandom sequences of single digits, and the subjects had to respond to each sequence of three odd or three even digits. The triplets evoked a typical late negativity in the event-related potential between the second and third digit as well as a P300 component following the third digit. In 21 smokers, task performance, event-related potentials and tidal air CO concentration were measured before and after smoking a cigarette. The results revealed increases in performance and P300 magnitude from pre- to postsmoking which were unaffected by the amount of CO absorption. A differential trend was seen, however, with the late negativity, which increased from pre- to postsmoking only in subjects with a large amount of CO absorption. The results support the assumption of the distraction arousal model used as an interpretation of these effects on contingent negative variation and suggest that high CO absorbing smokers possibly depend more on neuropharmacological effects of smoking than smokers with a low amount of CO absorption.

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Section: Discussionmentioning

confidence: 99%

Rapid Information Processing and Concomitant Event-Related Brain Potentials in Smokers Differing in CO Absorption

Michel¹,

Buzzi²,

Woodson³

et al. 1987

Neuropsychobiology

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“…(b) In each trial several stimuli are presented one after the other, but only one of them is relevant. As soon as subjects have identified which stimulus is the relevant one, it becomes the expected closing event and evokes a P3 (Johnston & Holcomb 1980;Rosier 1981;Wilson et al 1973).…”

Section: Closing Eventsmentioning

confidence: 99%

P300 as the resolution of negative cortical DC shifts

Deecke

Lang

1988

Behav Brain Sci

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P3 is the most prominent of the electrical potentials of the human electroencephalogram that are sensitive to psychological variables. According to the most influential current hypothesis about its psychological significance [E. Donchin's], the "context updating" hypothesis, P3 reflects the updating of working memory. This hypothesis cannot account for relevant portions of the available evidence and it entails some basic contradictions. A more general formulation of this hypothesis is that P3 reflects the updating of expectancies. This version implies that P3-evoking stimuli are initially unexpected but later become expected. This contradiction cannot be resolved within this formulation. The alternative "context closure" hypothesis retains the concept of "strategic information processing" emphasized by the context updating hypothesis. P3s are evoked by events that are awaited when subjects deal with repetitive, highly structured tasks; P3s arise from subjects' combining successive stimuli into larger units. The tasks in which P3s are elicited can accordingly be classified in terms of their respective formal sequences of stimuli. P3 may be a physiological indicator of excess activation being released from perceptual control areas.

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“…It will not imply the necessity of the subject's behaviour being contingent upon the information in the stimuli presented. Moreover, a task which is too simple might reduce the chances of seeing evidence in the AERs that might be related to differing aspects of information processing (Wilson et al, 1973;Poon et al, 1976). It has been suggested that cerebral functional asymmetry in general (Springer, 1973) and ERP asymmetries in particular (Thatcher, 1977) are enhanced by more difficult tasks.…”

Section: T Elmomentioning

confidence: 99%

Hemispheric asymmetry of auditory evoked potentials to comparisons within and across phonetic categories

Elmo¹

1987

Scandinavian J Psychology

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In 10 right‐handed Ss, auditory evoked responses (AERs) were recorded from left and right temporal and parietal scalp regions during simple discrimination responses to binaurally presented pairs of synthetic speech sounds ranging perceptually from /ba/ to /da/. A late positive component (P3) in the AER was found to reflect the categorical or phonetic analysis of the stop consonants, with only left scalp sites averaging significantly different responses between acoustic and phonetic comparisons. The result is interpreted as evidence of hemispheric differences in the processing of speech in respect of the level of processing accessed by the particular information processing task.

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Evoked cortical potentials and discrimination problem-solving in humans

Cited by 37 publications

References 16 publications

Rapid Information Processing and Concomitant Event-Related Brain Potentials in Smokers Differing in CO Absorption

Rapid Information Processing and Concomitant Event-Related Brain Potentials in Smokers Differing in CO Absorption

P300 as the resolution of negative cortical DC shifts

Hemispheric asymmetry of auditory evoked potentials to comparisons within and across phonetic categories

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