Cited by 118Transcranial Magnetic Stimulation StudiesMotor Control and AdaptationNeuroscience and Neuropharmacology Research

Attention influences the excitability of cortical motor areas in healthy humans

Conte, Antonella, Gilio, Francesca, Iezzi, Ennio, Frasca, Vittorio, Inghilleri, Maurizio, Berardelli, Alfredo·2007·Experimental Brain Research

Abstract

We investigated whether human attentional processes influence the size of the motor evoked potentials (MEP) facilitation and the duration of the cortical silent period (CSP) elicited by high-frequency repetitive transcranial magnetic stimulation (rTMS). In healthy subjects we assessed the effects of 5 Hz-rTMS, delivered in trains of 10 stimuli at suprathreshold intensity over the hand motor area, on the MEP size and CSP duration in different attention-demanding conditions: "relaxed," "target hand," and "non-target hand" condition. We also investigated the inhibitory effects of 1 Hz-rTMS conditioning to the premotor cortex on the 5 Hz-rTMS induced MEP facilitation. F-waves evoked by ulnar nerve stimulation were also recorded. rTMS trains elicited a larger MEP size facilitation when the subjects looked at the target hand whereas the increase in CSP duration during rTMS remained unchanged during the three attention-demanding conditions. The conditioning inhibitory stimulation delivered to the premotor cortex decreased the MEP facilitation during the "target hand" condition, leaving the MEP facilitation during the other conditions unchanged. None of the attentional conditions elicited changes in the F wave. In healthy subjects attentional processes influence the size of the MEP facilitation elicited by high-frequency rTMS and do so through premotor-to-motor connections.

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Crossref · 10.1007/s00221-007-0975-3

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  • Attention and task difficulty are known non-specific modulators of corticospinal excitability and plasticity.

    “Indeed, non-specific factors such as attention and task difficulty are known to modulate corticospinal excitability and plasticity (Beck and Hallett, 2010; Conte et al., 2007; Pearce and Kidgell, 2009; Stefan et al., 2004).”

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Authors
Conte, A., Gilio, F., Iezzi, E., Frasca, V., Inghilleri, M., & Berardelli, A.
Affiliations
  • Sapienza University of Rome (IT)
  • Istituti di Ricovero e Cura a Carattere Scientifico (IT)
Corresponding author
Berardelli, Alfredo
Venue
Experimental Brain Research
Published
2007-05-22
Volume
182
Issue
1
Pages
109-117
ISSN
  • 0014-4819 (ISSN-L)
  • 1432-1106
OpenAlex
W1970506018
Cited by
118
References
48
Citations by year
2026: 1 · 2025: 4 · 2024: 6 · 2023: 4 · 2022: 2 · 2021: 4 · 2020: 9 · 2019: 6 · 2018: 12 · 2017: 9 · 2016: 10 · 2015: 8 · 2014: 8 · 2013: 5 · 2012: 5
FWCI
3.18
Type
journal article
Language
en
Open access
closed
Locations
  • Experimental Brain Research (publishedVersion)
  • PubMed (publishedVersion)
  • IRIS Research product catalog (Sapienza University of Rome) (submittedVersion)
Topics
  • Life Sciences › Neuroscience › Neurology › Transcranial Magnetic Stimulation Studies
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Motor Control and Adaptation
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
attention, motor evoked potentials, cortical silent period, repetitive transcranial magnetic stimulation, premotor cortex, motor cortex excitability, F-wave, hand motor area
MeSH terms
Adult, Attention, Conditioning, Psychological, Data Interpretation, Statistical, Electric Stimulation, Electromyography, Hand, Humans, Functional Laterality, Motor Cortex, Neuronal Plasticity, Reference Values, Spinal Cord, Ulnar Nerve, Evoked Potentials, Motor, Transcranial Magnetic Stimulation

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