Cited by 924Motor Control and AdaptationAction Observation and SynchronizationTranscranial Magnetic Stimulation Studies

Primary Motor and Sensory Cortex Activation during Motor Performance and Motor Imagery: A Functional Magnetic Resonance Imaging Study

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Porro, Carlo A., Francescato, Maria Pia, Cettolo, Valentina, Diamond, Mathew E., Baraldi, Patrizia, Zuiani, Chiara, Bazzocchi, Massimo, di Prampero, Pietro E.·1996·The Journal of Neuroscience

Abstract

The intensity and spatial distribution of functional activation in the left precentral and postcentral gyri during actual motor performance (MP) and mental representation [motor imagery (MI)] of self-paced finger-to-thumb opposition movements of the dominant hand were investigated in fourteen right-handed volunteers by functional magnetic resonance imaging (fMRI) techniques. Significant increases in mean normalized fMRI signal intensities over values obtained during the control (visual imagery) tasks were found in a region including the anterior bank and crown of the central sulcus, the presumed site of the primary motor cortex, during both MP (mean percentage increase, 2.1%) and MI (0.8%). In the anterior portion of the precentral gyrus and the postcentral gyrus, mean functional activity levels were also increased during both conditions (MP, 1.7 and 1.2%; MI, 0.6 and 0.4%, respectively). To locate activated foci during MI, MP, or both conditions, the time course of the signal intensities of pixels lying in the precentral or postcentral gyrus was plotted against single-step or double-step waveforms, where the steps of the waveform corresponded to different tasks. Pixels significantly (r > 0.7) activated during both MP and MI were identified in each region in the majority of subjects; percentage increases in signal intensity during MI were on average 30% as great as increases during MP. The pixels activated during both MP and MI appear to represent a large fraction of the whol…

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Registry

Crossref · 10.1523/jneurosci.16-23-07688.1996

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1 of 1 references verified0 citation errors · 0 not checkable

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  • Motor imagery engages a parietal-frontal circuit known to support motor control.

    “a parietal–frontal network that mediates motor control is activated during motor imagery (Porro et al., 1996, 2000; Deiber et al., 1998; Lotze et al., 1999; Gerardin et al., 2000; Ehrsson et al., 2003; Hanakawa et al., 2003; Dechent et al., 2004; Meister et al., 2004)”
  • Craving for cigarettes may elicit preparation for action or voluntary movement, goal directed actions (e.g., lighting a cigarette, bringing a cigarette up to the mouth) and/or motor imagery which are linked to the motor system.

    “so that craving for cigarettes may elicit preparation for action or voluntary movement, goal directed actions (e.g., lighting a cigarette, bringing a cigarette up to the mouth) and/or motor imagery which are linked to the motor system66, 67.”

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Authors
Porro, C. A., Francescato, M. P., Cettolo, V., Diamond, M. E., Baraldi, P., Zuiani, C., Bazzocchi, M., & di Prampero, P. E.
Affiliations
  • University of Udine (IT)
  • University of Modena and Reggio Emilia (IT)
Venue
The Journal of Neuroscience
Published
1996-12-01
Volume
16
Issue
23
Pages
7688-7698
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2168512521
Cited by
924
References
1
Citations by year
2026: 22 · 2025: 24 · 2024: 22 · 2023: 56 · 2022: 21 · 2021: 21 · 2020: 32 · 2019: 34 · 2018: 35 · 2017: 34 · 2016: 36 · 2015: 45 · 2014: 45 · 2013: 34 · 2012: 32
FWCI
7.36
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • SDL (submittedVersion)
  • Institutional Research Information System (University of Udine) (submittedVersion)
  • IRIS UNIMORE (University of Modena and Reggio Emilia) (submittedVersion, cc-by)
Funders
Consiglio Nazionale delle Ricerche
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Motor Control and Adaptation
  • Social Sciences › Psychology › Social Psychology › Action Observation and Synchronization
  • Life Sciences › Neuroscience › Neurology › Transcranial Magnetic Stimulation Studies
Keywords
motor imagery, motor performance, primary motor cortex, primary somatosensory cortex, central sulcus, precentral gyrus, postcentral gyrus, visual imagery, self-paced movement
MeSH terms
Adult, Brain Mapping, Female, Humans, Imagination, Magnetic Resonance Imaging, Male, Motor Activity, Motor Cortex, Somatosensory Cortex

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