Top-down attentional processing enhances auditory evoked gamma band activity

Standard

Top-down attentional processing enhances auditory evoked gamma band activity. / Debener, Stefan; Herrmann, Christoph S; Kranczioch, Cornelia; Gembris, Daniel; Engel, Andreas K.

in: NEUROREPORT, Jahrgang 14, Nr. 5, 15.04.2003, S. 683-6.

Publikationen: SCORING: Beitrag in Fachzeitschrift/ZeitungSCORING: ZeitschriftenaufsatzForschungBegutachtung

Harvard

APA

Vancouver

Bibtex

@article{ad354ea2c993420b82bcb249a21e4a68,
title = "Top-down attentional processing enhances auditory evoked gamma band activity",
abstract = "In contrast to animal studies, relatively little is known about the functional significance of the early evoked gamma band activity in humans. We investigated whether evoked and induced 40 Hz activity differentiate automatic, bottom-up aspects of attention from voluntary, top-down related attentional demands. An auditory novelty-oddball task was applied to 14 healthy subjects. As predicted, more evoked gamma was found for the target condition than in the two task-irrelevant conditions. Since gamma band activity was not enhanced for novel stimuli, the evoked gamma response cannot be explained with a simple concept of stimulus arousal. Neither induced gamma nor the degree of 40 Hz phase-locking were different between the experimental conditions. Taken together, our data emphasize the role of evoked gamma band activity for top-down attentional processing.",
keywords = "Acoustic Stimulation, Adult, Arousal, Attention, Brain, Electroencephalography, Evoked Potentials, Auditory, Female, Humans, Male, Reference Values",
author = "Stefan Debener and Herrmann, {Christoph S} and Cornelia Kranczioch and Daniel Gembris and Engel, {Andreas K}",
year = "2003",
month = apr,
day = "15",
doi = "10.1097/01.wnr.0000064987.96259.5c",
language = "English",
volume = "14",
pages = "683--6",
journal = "NEUROREPORT",
issn = "0959-4965",
publisher = "Lippincott Williams and Wilkins",
number = "5",

}

RIS

TY - JOUR

T1 - Top-down attentional processing enhances auditory evoked gamma band activity

AU - Debener, Stefan

AU - Herrmann, Christoph S

AU - Kranczioch, Cornelia

AU - Gembris, Daniel

AU - Engel, Andreas K

PY - 2003/4/15

Y1 - 2003/4/15

N2 - In contrast to animal studies, relatively little is known about the functional significance of the early evoked gamma band activity in humans. We investigated whether evoked and induced 40 Hz activity differentiate automatic, bottom-up aspects of attention from voluntary, top-down related attentional demands. An auditory novelty-oddball task was applied to 14 healthy subjects. As predicted, more evoked gamma was found for the target condition than in the two task-irrelevant conditions. Since gamma band activity was not enhanced for novel stimuli, the evoked gamma response cannot be explained with a simple concept of stimulus arousal. Neither induced gamma nor the degree of 40 Hz phase-locking were different between the experimental conditions. Taken together, our data emphasize the role of evoked gamma band activity for top-down attentional processing.

AB - In contrast to animal studies, relatively little is known about the functional significance of the early evoked gamma band activity in humans. We investigated whether evoked and induced 40 Hz activity differentiate automatic, bottom-up aspects of attention from voluntary, top-down related attentional demands. An auditory novelty-oddball task was applied to 14 healthy subjects. As predicted, more evoked gamma was found for the target condition than in the two task-irrelevant conditions. Since gamma band activity was not enhanced for novel stimuli, the evoked gamma response cannot be explained with a simple concept of stimulus arousal. Neither induced gamma nor the degree of 40 Hz phase-locking were different between the experimental conditions. Taken together, our data emphasize the role of evoked gamma band activity for top-down attentional processing.

KW - Acoustic Stimulation

KW - Adult

KW - Arousal

KW - Attention

KW - Brain

KW - Electroencephalography

KW - Evoked Potentials, Auditory

KW - Female

KW - Humans

KW - Male

KW - Reference Values

U2 - 10.1097/01.wnr.0000064987.96259.5c

DO - 10.1097/01.wnr.0000064987.96259.5c

M3 - SCORING: Journal article

C2 - 12692463

VL - 14

SP - 683

EP - 686

JO - NEUROREPORT

JF - NEUROREPORT

SN - 0959-4965

IS - 5

ER -