Theta-gamma phase synchronization during memory matching in visual working memory.
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Theta-gamma phase synchronization during memory matching in visual working memory. / Holz, Elisa Mira; Glennon, Mark; Prendergast, Karen; Sauseng, Paul.
in: NEUROIMAGE, Jahrgang 52, Nr. 1, 1, 2010, S. 326-335.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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TY - JOUR
T1 - Theta-gamma phase synchronization during memory matching in visual working memory.
AU - Holz, Elisa Mira
AU - Glennon, Mark
AU - Prendergast, Karen
AU - Sauseng, Paul
PY - 2010
Y1 - 2010
N2 - In most cases, object recognition is related to the matching of internal memory contents and bottom-up external sensory stimulation. The aim of this study was to investigate the electrophysiological correlates of memory matching based on EEG oscillatory phase synchronization analysis. Healthy subjects completed a delayed-match to sample task in which items stored in visual-spatial short-term memory had to be compared with a matching or non-matching probe. The results show that memory matching appears as transient phase-synchronization over parieto-occipital regions between theta (4-8 Hz) and high gamma (50-70 Hz) oscillations, 150-200 ms post probe presentation. When memory representation and visual information match, phase-synchronization is stronger in the right hemisphere; conversely, when they do not match, stronger phase synchronization is observed in the left hemisphere. The present results reveal the integrative role of oscillatory activity in the memory matching process.
AB - In most cases, object recognition is related to the matching of internal memory contents and bottom-up external sensory stimulation. The aim of this study was to investigate the electrophysiological correlates of memory matching based on EEG oscillatory phase synchronization analysis. Healthy subjects completed a delayed-match to sample task in which items stored in visual-spatial short-term memory had to be compared with a matching or non-matching probe. The results show that memory matching appears as transient phase-synchronization over parieto-occipital regions between theta (4-8 Hz) and high gamma (50-70 Hz) oscillations, 150-200 ms post probe presentation. When memory representation and visual information match, phase-synchronization is stronger in the right hemisphere; conversely, when they do not match, stronger phase synchronization is observed in the left hemisphere. The present results reveal the integrative role of oscillatory activity in the memory matching process.
KW - Humans
KW - Male
KW - Female
KW - Young Adult
KW - Neuropsychological Tests
KW - Health Status
KW - Brain physiology
KW - Time Factors
KW - Visual Perception physiology
KW - Electroencephalography
KW - Cortical Synchronization
KW - Evoked Potentials
KW - Memory, Short-Term physiology
KW - Pattern Recognition, Visual physiology
KW - Periodicity
KW - Theta Rhythm
KW - Humans
KW - Male
KW - Female
KW - Young Adult
KW - Neuropsychological Tests
KW - Health Status
KW - Brain physiology
KW - Time Factors
KW - Visual Perception physiology
KW - Electroencephalography
KW - Cortical Synchronization
KW - Evoked Potentials
KW - Memory, Short-Term physiology
KW - Pattern Recognition, Visual physiology
KW - Periodicity
KW - Theta Rhythm
M3 - SCORING: Zeitschriftenaufsatz
VL - 52
SP - 326
EP - 335
JO - NEUROIMAGE
JF - NEUROIMAGE
SN - 1053-8119
IS - 1
M1 - 1
ER -
