Oscillatory neuronal activity reflects lexical-semantic feature integration within and across sensory modalities in distributed cortical networks
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Oscillatory neuronal activity reflects lexical-semantic feature integration within and across sensory modalities in distributed cortical networks. / van Ackeren, Markus J; Schneider, Till R; Müsch, Kathrin; Rueschemeyer, Shirley-Ann.
In: J NEUROSCI, Vol. 34, No. 43, 2014, p. 14318-23.Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review
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TY - JOUR
T1 - Oscillatory neuronal activity reflects lexical-semantic feature integration within and across sensory modalities in distributed cortical networks
AU - van Ackeren, Markus J
AU - Schneider, Till R
AU - Müsch, Kathrin
AU - Rueschemeyer, Shirley-Ann
N1 - Copyright © 2014 the authors 0270-6474/14/3314318-06$15.00/0.
PY - 2014
Y1 - 2014
N2 - Research from the previous decade suggests that word meaning is partially stored in distributed modality-specific cortical networks. However, little is known about the mechanisms by which semantic content from multiple modalities is integrated into a coherent multisensory representation. Therefore we aimed to characterize differences between integration of lexical-semantic information from a single modality compared with two sensory modalities. We used magnetoencephalography in humans to investigate changes in oscillatory neuronal activity while participants verified two features for a given target word (e.g., "bus"). Feature pairs consisted of either two features from the same modality (visual: "red," "big") or different modalities (auditory and visual: "red," "loud"). The results suggest that integrating modality-specific features of the target word is associated with enhanced high-frequency power (80-120 Hz), while integrating features from different modalities is associated with a sustained increase in low-frequency power (2-8 Hz). Source reconstruction revealed a peak in the anterior temporal lobe for low-frequency and high-frequency effects. These results suggest that integrating lexical-semantic knowledge at different cortical scales is reflected in frequency-specific oscillatory neuronal activity in unisensory and multisensory association networks.
AB - Research from the previous decade suggests that word meaning is partially stored in distributed modality-specific cortical networks. However, little is known about the mechanisms by which semantic content from multiple modalities is integrated into a coherent multisensory representation. Therefore we aimed to characterize differences between integration of lexical-semantic information from a single modality compared with two sensory modalities. We used magnetoencephalography in humans to investigate changes in oscillatory neuronal activity while participants verified two features for a given target word (e.g., "bus"). Feature pairs consisted of either two features from the same modality (visual: "red," "big") or different modalities (auditory and visual: "red," "loud"). The results suggest that integrating modality-specific features of the target word is associated with enhanced high-frequency power (80-120 Hz), while integrating features from different modalities is associated with a sustained increase in low-frequency power (2-8 Hz). Source reconstruction revealed a peak in the anterior temporal lobe for low-frequency and high-frequency effects. These results suggest that integrating lexical-semantic knowledge at different cortical scales is reflected in frequency-specific oscillatory neuronal activity in unisensory and multisensory association networks.
KW - Acoustic Stimulation
KW - Adolescent
KW - Adult
KW - Auditory Cortex
KW - Biological Clocks
KW - Cerebral Cortex
KW - Female
KW - Humans
KW - Magnetoencephalography
KW - Male
KW - Nerve Net
KW - Photic Stimulation
KW - Semantics
KW - Visual Cortex
KW - Young Adult
U2 - 10.1523/JNEUROSCI.0958-14.2014
DO - 10.1523/JNEUROSCI.0958-14.2014
M3 - SCORING: Journal article
C2 - 25339744
VL - 34
SP - 14318
EP - 14323
JO - J NEUROSCI
JF - J NEUROSCI
SN - 0270-6474
IS - 43
ER -