Is there a Mismatch Negativity in ERPS Elicited by Occasionally Added or Omitted Tones of Short Stimulus Trains?

Ullsperger, Peter; Gille, H.-G.; M, Pietschmann

doi:10.1016/s0166-4115(08)61603-9

Cited by 2 publications

(2 citation statements)

References 9 publications

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“…is elicited automatically, without conscious perception of the evoking stimuli and tends to have a frontocentral maximum, whereas in the visual modality, the N2a is described as "semiautomatic," evoked by task-irrelevant stimuli in an attended channel, and tends to have a lateral-posterior distribution~Ford, Roth, & Kopell, 1976;Naatanen & Gaillard, 1983;Naatanen & Picton, 1986;Naatanen, Simpson, & Loveless, 1982;Ritter, Simson, & Vaughan, 1983;Squires et al, 1975!. The N2a is extremely sensitive to stimuli that deviate physically from the immediately preceding context~Sams, Alho, & Naatanen, , 1984Ullsperger, Gille, & Pietschmann, 1985!. The N2b, on the other hand, requires conscious perception of the stimulus and is particularly sensitive to low stimulus probability~Naatanen & Gaillard, 1983;Naatanen et al, 1982;Sams et al, 1984;Squires et al, 1975!.…”

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confidence: 99%

An electrophysiological index of stimulus unfamiliarity

et al. 2000

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This study investigated the functional significance of the N2 response to novel stimuli. In one condition, background, target, and deviant stimuli were simple geometric figures. In a second condition, all stimulus types were unfamiliar/unusual figures. In a third condition, background and target stimuli were unusual figures and deviant stimuli were simple shapes. Unusual figures, whether they were deviant, target, or background stimuli, evoked larger N2 responses than their simple, familiar counterparts. N2 elicited by an unusual background stimulus was larger than that evoked by simple, deviant stimuli, a pattern opposite that exhibited by the subsequent P3. Deviance from immediate context had limited influence over N2 amplitude. The results suggest that novelty N2 and novelty P3 reflect the processing of different aspects of "novel" visual stimuli. The novelty P3 is particularly sensitive to deviation from immediate context. In contrast, the novelty N2 is sensitive to deviation from long-term context that renders a stimulus unfamiliar and difficult to encode.

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An electrophysiological index of stimulus unfamiliarity

et al. 2000

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“…The fact that MMN amplitude is enhanced by a decrease in the deviant stimulus probability can also be seen as supporting this interpretation. On the other hand, when physically identical stimuli were delivered in unsteady rhythms, no MMN was elicited by additional unpredictably occurring stimuli, that is, the sensory adaptation was not affected (Ullsperger et al 1985). These changes in rhythm which require a higher order of processing are probably detected by controlled processing mechanisms and reflected by processing negativity and subsequent P300 component.…”

Section: Department Of Work Physiology Central Institute Of Occupatimentioning

confidence: 93%

Similarities between attentional and preparatory states

Kristeva¹,

Cheyne²

1990

Behav Brain Sci

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This article examines the role of attention and automaticity in auditory processing as revealed by event-related potential (ERP) research. An ERP component called the mismatch negativity, generated by the brain's automatic response to changes in repetitive auditory input, reveals that physical features of auditory stimuli are fully processed whether or not they are attended. It also suggests that there exist precise neuronal representations of the physical features of recent auditory stimuli, perhaps the traces underlying acoustic sensory ("echoic") memory. A mechanism of passive attention switching in response to changes in repetitive input is also implicated. Conscious perception of discrete acoustic stimuli might be mediated by some of the mechanisms underlying another ERP component (Nl), one sensitive to stimulus onset and offset. Frequent passive attentional shifts might account for the effect cognitive psychologists describe as "the breakthrough of the unattended" (Broadbent 1982), that is, that even unattended stimuli may be semantically processed, without assuming automatic semantic processing or late selection in selective attention. The processing negativity supports the early-selection theory and may arise from a mechanism for selectively attending to stimuli defined by certain features. This stimulus selection occurs in the form of a matching process in which each input is compared with the "attentional trace," a voluntarily maintained representation of the task-relevant features of the stimulus to be attended. The attentional mechanism described might underlie the stimulus-set mode of attention proposed by Broadbent. Finally, a model of automatic and attentional processing in audition is proposed that is based mainly on the aforementioned ERP components and some other physiological measures.

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Is there a Mismatch Negativity in ERPS Elicited by Occasionally Added or Omitted Tones of Short Stimulus Trains?

Cited by 2 publications

References 9 publications

An electrophysiological index of stimulus unfamiliarity

An electrophysiological index of stimulus unfamiliarity

Similarities between attentional and preparatory states

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