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Articles, Behavioral/Cognitive

Attention Drives Synchronization of Alpha and Beta Rhythms between Right Inferior Frontal and Primary Sensory Neocortex

Matthew D. Sacchet, Roan A. LaPlante, Qian Wan, Dominique L. Pritchett, Adrian K.C. Lee, Matti Hämäläinen, Christopher I. Moore, Catherine E. Kerr and Stephanie R. Jones
Journal of Neuroscience 4 February 2015, 35 (5) 2074-2082; DOI: https://doi.org/10.1523/JNEUROSCI.1292-14.2015
Matthew D. Sacchet
1Neurosciences Program, Stanford University School of Medicine, Stanford, California, 94305,
2Department of Psychology, Stanford University, Stanford, California, 94305,
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Roan A. LaPlante
3Athinoula A. Martinos Center For Biomedical Imaging, Massachusetts General Hospital, Charlestown, Massachusetts, 02129,
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Qian Wan
4School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts, 02138,
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Dominique L. Pritchett
5McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139,
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Adrian K.C. Lee
6Institute for Learning and Brain Sciences, University of Washington, Seattle, Washington, 98195,
7Department of Speech and Hearing Sciences, University of Washington, Seattle, Washington, 98195,
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Matti Hämäläinen
3Athinoula A. Martinos Center For Biomedical Imaging, Massachusetts General Hospital, Charlestown, Massachusetts, 02129,
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Christopher I. Moore
8Department of Neuroscience and Brown Institute for Brain Sciences, Brown University, Providence, Rhode Island, 02912, and
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Catherine E. Kerr
9Department of Family Medicine, Brown Alpert Medical School, Providence, Rhode Island, 02912
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Stephanie R. Jones
3Athinoula A. Martinos Center For Biomedical Imaging, Massachusetts General Hospital, Charlestown, Massachusetts, 02129,
8Department of Neuroscience and Brown Institute for Brain Sciences, Brown University, Providence, Rhode Island, 02912, and
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Abstract

The right inferior frontal cortex (rIFC) is specifically associated with attentional control via the inhibition of behaviorally irrelevant stimuli and motor responses. Similarly, recent evidence has shown that alpha (7–14 Hz) and beta (15–29 Hz) oscillations in primary sensory neocortical areas are enhanced in the representation of non-attended stimuli, leading to the hypothesis that allocation of these rhythms plays an active role in optimal inattention. Here, we tested the hypothesis that selective synchronization between rIFC and primary sensory neocortex occurs in these frequency bands during inattention. We used magnetoencephalography to investigate phase synchrony between primary somatosensory (SI) and rIFC regions during a cued-attention tactile detection task that required suppression of response to uncertain distractor stimuli. Attentional modulation of synchrony between SI and rIFC was found in both the alpha and beta frequency bands. This synchrony manifested as an increase in the alpha-band early after cue between non-attended SI representations and rIFC, and as a subsequent increase in beta-band synchrony closer to stimulus processing. Differences in phase synchrony were not found in several proximal control regions. These results are the first to reveal distinct interactions between primary sensory cortex and rIFC in humans and suggest that synchrony between rIFC and primary sensory representations plays a role in the inhibition of irrelevant sensory stimuli and motor responses.

  • attention
  • inferior frontal cortex
  • magnetoencephalography
  • primary somatosensory cortex
  • somatosensation
  • synchrony
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The Journal of Neuroscience: 35 (5)
Journal of Neuroscience
Vol. 35, Issue 5
4 Feb 2015
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Attention Drives Synchronization of Alpha and Beta Rhythms between Right Inferior Frontal and Primary Sensory Neocortex
Matthew D. Sacchet, Roan A. LaPlante, Qian Wan, Dominique L. Pritchett, Adrian K.C. Lee, Matti Hämäläinen, Christopher I. Moore, Catherine E. Kerr, Stephanie R. Jones
Journal of Neuroscience 4 February 2015, 35 (5) 2074-2082; DOI: 10.1523/JNEUROSCI.1292-14.2015

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Attention Drives Synchronization of Alpha and Beta Rhythms between Right Inferior Frontal and Primary Sensory Neocortex
Matthew D. Sacchet, Roan A. LaPlante, Qian Wan, Dominique L. Pritchett, Adrian K.C. Lee, Matti Hämäläinen, Christopher I. Moore, Catherine E. Kerr, Stephanie R. Jones
Journal of Neuroscience 4 February 2015, 35 (5) 2074-2082; DOI: 10.1523/JNEUROSCI.1292-14.2015
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Keywords

  • attention
  • inferior frontal cortex
  • Magnetoencephalography
  • primary somatosensory cortex
  • somatosensation
  • synchrony

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