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Asymmetric transcallosal conduction delay leads to finer bimanual coordination

View ORCID ProfileMarta Bortoletto, View ORCID ProfileLaura Bonzano, View ORCID ProfileAgnese Zazio, View ORCID ProfileLudovico Pedullà, View ORCID ProfileRoberto Gasparotti, View ORCID ProfileCarlo Miniussi, Marco Bove
doi: https://doi.org/10.1101/2020.01.24.918102
Marta Bortoletto
1Cognitive Neuroscience Section, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy
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  • ORCID record for Marta Bortoletto
  • For correspondence: marta.bortoletto@cognitiveneuroscience.it marco.bove@unige.it
Laura Bonzano
2Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genoa, Genoa, Italy
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  • ORCID record for Laura Bonzano
Agnese Zazio
1Cognitive Neuroscience Section, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy
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  • ORCID record for Agnese Zazio
Ludovico Pedullà
3Department of Experimental Medicine, Section of Human Physiology, University of Genoa, Genoa, Italy
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  • ORCID record for Ludovico Pedullà
Roberto Gasparotti
4Department of Medical and Surgical Specialties, Radiological Sciences, and Public Health, Section of Neuroradiology, University of Brescia, Brescia, Italy
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Carlo Miniussi
1Cognitive Neuroscience Section, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy
5CIMeC, Center for Mind/Brain Sciences, University of Trento, Rovereto, Italy
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Marco Bove
3Department of Experimental Medicine, Section of Human Physiology, University of Genoa, Genoa, Italy
6Ospedale Policlinico San Martino-IRCCS, Genoa, Italy
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  • For correspondence: marta.bortoletto@cognitiveneuroscience.it marco.bove@unige.it
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Abstract

The role of transcallosal conduction delay (TCD) in hemispheric dominance and behavioral outcomes has long been theorized, but it has scarcely been investigated due to methodological shortcomings. Here, we report a new noninvasively measured index of TCD between homologous motor areas derived from TMS-evoked potentials. Notably, asymmetric TCD leads to finer bimanual coordination when signal is transmitted more quickly from the dominant primary motor cortex than in the opposite direction.

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Posted January 25, 2020.
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Asymmetric transcallosal conduction delay leads to finer bimanual coordination
Marta Bortoletto, Laura Bonzano, Agnese Zazio, Ludovico Pedullà, Roberto Gasparotti, Carlo Miniussi, Marco Bove
bioRxiv 2020.01.24.918102; doi: https://doi.org/10.1101/2020.01.24.918102
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Asymmetric transcallosal conduction delay leads to finer bimanual coordination
Marta Bortoletto, Laura Bonzano, Agnese Zazio, Ludovico Pedullà, Roberto Gasparotti, Carlo Miniussi, Marco Bove
bioRxiv 2020.01.24.918102; doi: https://doi.org/10.1101/2020.01.24.918102

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