Cross-frequency phase synchronization: a brain mechanism of memory matching and attention.
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Cross-frequency phase synchronization: a brain mechanism of memory matching and attention. / Sauseng, Paul; Klimesch, Wolfgang; Gruber, Walter R; Birbaumer, Niels.
in: NEUROIMAGE, Jahrgang 40, Nr. 1, 1, 2008, S. 308-317.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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TY - JOUR
T1 - Cross-frequency phase synchronization: a brain mechanism of memory matching and attention.
AU - Sauseng, Paul
AU - Klimesch, Wolfgang
AU - Gruber, Walter R
AU - Birbaumer, Niels
PY - 2008
Y1 - 2008
N2 - Spatial attention amplifies the neural response, i.e. spike rates, brain metabolism, and oscillatory activity at gamma frequency (beyond 30 Hz). In this study we show that when a visual target is attended enhanced synchrony between gamma phase (30 to 50 Hz) and theta phase (4 to 7 Hz), representing bottom-up and top-down activity, respectively, can be observed. This is interpreted as memory matching between incoming visual information and stored (top-down) information. The results highlight the function of oscillatory brain activity in the integration of memory and attention processes. This seems to be true in particular for theta oscillations showing increased interregional phase-coupling. We conclude that memory information is stored within a distributed theta network and it is matched with an incoming sensory trace at posterior brain areas.
AB - Spatial attention amplifies the neural response, i.e. spike rates, brain metabolism, and oscillatory activity at gamma frequency (beyond 30 Hz). In this study we show that when a visual target is attended enhanced synchrony between gamma phase (30 to 50 Hz) and theta phase (4 to 7 Hz), representing bottom-up and top-down activity, respectively, can be observed. This is interpreted as memory matching between incoming visual information and stored (top-down) information. The results highlight the function of oscillatory brain activity in the integration of memory and attention processes. This seems to be true in particular for theta oscillations showing increased interregional phase-coupling. We conclude that memory information is stored within a distributed theta network and it is matched with an incoming sensory trace at posterior brain areas.
M3 - SCORING: Zeitschriftenaufsatz
VL - 40
SP - 308
EP - 317
JO - NEUROIMAGE
JF - NEUROIMAGE
SN - 1053-8119
IS - 1
M1 - 1
ER -
