Attention Drives Synchronization of Alpha and Beta Rhythms between Right Inferior Frontal and Primary Sensory Neocortex
| Autor: | Matti Hämäläinen, Stephanie R. Jones, Adrian K. C. Lee, Catherine E. Kerr, Christopher I. Moore, Dominique L. Pritchett, Matthew D. Sacchet, Qian Wan, Roan A. LaPlante |
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| Rok vydání: | 2015 |
| Předmět: |
Adult
Male Poison control Neocortex Sensory system Stimulus (physiology) Somatosensory system medicine Humans Attention Beta Rhythm Cortical Synchronization medicine.diagnostic_test General Neuroscience Attentional control Magnetoencephalography Articles Frontal Lobe Alpha Rhythm medicine.anatomical_structure Touch Perception Female Sensorimotor Cortex Cues Psychology Neuroscience |
| Zdroj: | The Journal of Neuroscience. 35:2074-2082 |
| ISSN: | 1529-2401 0270-6474 |
| DOI: | 10.1523/jneurosci.1292-14.2015 |
| Popis: | 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 betweenrIFCand primary sensory neocortex occurs in these frequency bands during inattention. We used magnetoencephalography to investigate phase synchrony between primary somatosensory (SI) andrIFCregions during a cued-attention tactile detection task that required suppression of response to uncertain distractor stimuli. Attentional modulation of synchrony between SI andrIFCwas 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 andrIFCin humans and suggest that synchrony betweenrIFCand primary sensory representations plays a role in the inhibition of irrelevant sensory stimuli and motor responses. |
| Databáze: | OpenAIRE |
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