Brain oscillatory 4–35 Hz EEG responses during an n-back task with complex visual stimuli

Jussi Palomäki, Markus Kivikangas, Aleksander Alafuzoff, Tero Hakala, Christina M. Krause

Tutkimustuotos: ArtikkelijulkaisuArtikkeliTieteellinenvertaisarvioitu

Kuvaus

Brain oscillatory responses of 4–35 Hz EEG frequencies elicited during performance of a visual n-back task with complex visual stimuli were assessed in 20 adult volunteers. Spectral power changes were assessed separately for target and non-target stimuli in four different memory load conditions (0, 1, 2, and 3-back). The presentation of both target and non-target stimuli elicited long-lasting ∼4–8 Hz power increases, which were more prominent at the beginning of stimulus onset during presentation of target stimuli, as compared to non-target stimuli, in the 0-back memory load condition. ∼8–25 Hz power decreases appeared at stimulus onset. These power decreases were more prominent during the presentation of target stimuli, as compared to non-target stimuli, and their duration increased as a function of memory load between the 0-, 1-, and 2-back, but not the 3-back, memory load conditions. The current results provide further evidence in support of the notion of a complex interplay between both ∼4–8 Hz power increases and ∼8–25 Hz power decreases during cognitive memory task performance.
Alkuperäiskielienglanti
LehtiNeuroscience Letters
Vuosikerta516
Numero1
Sivut141-145
Sivumäärä5
ISSN0304-3940
DOI - pysyväislinkit
TilaJulkaistu - 2012
OKM-julkaisutyyppiA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä, vertaisarvioitu

Tieteenalat

  • 3112 Neurotieteet

Lainaa tätä

Palomäki, Jussi ; Kivikangas, Markus ; Alafuzoff, Aleksander ; Hakala, Tero ; Krause, Christina M. / Brain oscillatory 4–35 Hz EEG responses during an n-back task with complex visual stimuli. Julkaisussa: Neuroscience Letters. 2012 ; Vuosikerta 516, Nro 1. Sivut 141-145.
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title = "Brain oscillatory 4–35 Hz EEG responses during an n-back task with complex visual stimuli",
abstract = "Brain oscillatory responses of 4–35 Hz EEG frequencies elicited during performance of a visual n-back task with complex visual stimuli were assessed in 20 adult volunteers. Spectral power changes were assessed separately for target and non-target stimuli in four different memory load conditions (0, 1, 2, and 3-back). The presentation of both target and non-target stimuli elicited long-lasting ∼4–8 Hz power increases, which were more prominent at the beginning of stimulus onset during presentation of target stimuli, as compared to non-target stimuli, in the 0-back memory load condition. ∼8–25 Hz power decreases appeared at stimulus onset. These power decreases were more prominent during the presentation of target stimuli, as compared to non-target stimuli, and their duration increased as a function of memory load between the 0-, 1-, and 2-back, but not the 3-back, memory load conditions. The current results provide further evidence in support of the notion of a complex interplay between both ∼4–8 Hz power increases and ∼8–25 Hz power decreases during cognitive memory task performance.",
keywords = "3112 Neurosciences, Brain oscillations, Electroencephalography, n-Back, Working memory, Complex visual stimuli",
author = "Jussi Palom{\"a}ki and Markus Kivikangas and Aleksander Alafuzoff and Tero Hakala and Krause, {Christina M.}",
year = "2012",
doi = "10.1016/j.neulet.2012.03.076",
language = "English",
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pages = "141--145",
journal = "Neuroscience Letters",
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Brain oscillatory 4–35 Hz EEG responses during an n-back task with complex visual stimuli. / Palomäki, Jussi; Kivikangas, Markus; Alafuzoff, Aleksander; Hakala, Tero; Krause, Christina M.

julkaisussa: Neuroscience Letters, Vuosikerta 516, Nro 1, 2012, s. 141-145.

Tutkimustuotos: ArtikkelijulkaisuArtikkeliTieteellinenvertaisarvioitu

TY - JOUR

T1 - Brain oscillatory 4–35 Hz EEG responses during an n-back task with complex visual stimuli

AU - Palomäki, Jussi

AU - Kivikangas, Markus

AU - Alafuzoff, Aleksander

AU - Hakala, Tero

AU - Krause, Christina M.

PY - 2012

Y1 - 2012

N2 - Brain oscillatory responses of 4–35 Hz EEG frequencies elicited during performance of a visual n-back task with complex visual stimuli were assessed in 20 adult volunteers. Spectral power changes were assessed separately for target and non-target stimuli in four different memory load conditions (0, 1, 2, and 3-back). The presentation of both target and non-target stimuli elicited long-lasting ∼4–8 Hz power increases, which were more prominent at the beginning of stimulus onset during presentation of target stimuli, as compared to non-target stimuli, in the 0-back memory load condition. ∼8–25 Hz power decreases appeared at stimulus onset. These power decreases were more prominent during the presentation of target stimuli, as compared to non-target stimuli, and their duration increased as a function of memory load between the 0-, 1-, and 2-back, but not the 3-back, memory load conditions. The current results provide further evidence in support of the notion of a complex interplay between both ∼4–8 Hz power increases and ∼8–25 Hz power decreases during cognitive memory task performance.

AB - Brain oscillatory responses of 4–35 Hz EEG frequencies elicited during performance of a visual n-back task with complex visual stimuli were assessed in 20 adult volunteers. Spectral power changes were assessed separately for target and non-target stimuli in four different memory load conditions (0, 1, 2, and 3-back). The presentation of both target and non-target stimuli elicited long-lasting ∼4–8 Hz power increases, which were more prominent at the beginning of stimulus onset during presentation of target stimuli, as compared to non-target stimuli, in the 0-back memory load condition. ∼8–25 Hz power decreases appeared at stimulus onset. These power decreases were more prominent during the presentation of target stimuli, as compared to non-target stimuli, and their duration increased as a function of memory load between the 0-, 1-, and 2-back, but not the 3-back, memory load conditions. The current results provide further evidence in support of the notion of a complex interplay between both ∼4–8 Hz power increases and ∼8–25 Hz power decreases during cognitive memory task performance.

KW - 3112 Neurosciences

KW - Brain oscillations

KW - Electroencephalography

KW - n-Back

KW - Working memory

KW - Complex visual stimuli

U2 - 10.1016/j.neulet.2012.03.076

DO - 10.1016/j.neulet.2012.03.076

M3 - Article

VL - 516

SP - 141

EP - 145

JO - Neuroscience Letters

JF - Neuroscience Letters

SN - 0304-3940

IS - 1

ER -