Umeå University's logo

umu.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Goal-directed modulation of stretch reflex gains is reduced in the non-dominant upper limb
Umeå University, Faculty of Medicine, Department of Integrative Medical Biology (IMB), Physiology.ORCID iD: 0000-0002-6294-7844
Neuromuscular Diagnostics, Department of Sport and Health Sciences, Technical University of Munich, Munich, Germany.
Neuromuscular Diagnostics, Department of Sport and Health Sciences, Technical University of Munich, Munich, Germany; Munich Institute of Robotics and Machine Intelligence (MIRMI), Technical University of Munich, Munich, Germany; Munich Data Science Institute (MDSI), Technical University of Munich, Munich, Germany.
Umeå University, Faculty of Medicine, Department of Integrative Medical Biology (IMB), Physiology.ORCID iD: 0000-0001-9890-2974
2023 (English)In: European Journal of Neuroscience, ISSN 0953-816X, E-ISSN 1460-9568, Vol. 58, no 9, p. 3981-4001Article in journal (Refereed) Published
Abstract [en]

Most individuals experience their dominant arm as being more dexterous than the non-dominant arm, but the neural mechanisms underlying this asymmetry in motor behaviour are unclear. Using a delayed-reach task, we have recently demonstrated strong goal-directed tuning of stretch reflex gains in the dominant upper limb of human participants. Here, we used an equivalent experimental paradigm to address the neural mechanisms that underlie the preparation for reaching movements with the non-dominant upper limb. There were consistent effects of load, preparatory delay duration and target direction on the long latency stretch reflex. However, by comparing stretch reflex responses in the non-dominant arm with those previously documented in the dominant arm, we demonstrate that goal-directed tuning of short and long latency stretch reflexes is markedly weaker in the non-dominant limb. The results indicate that the motor performance asymmetries across the two upper limbs are partly due to the more sophisticated control of reflexive stiffness in the dominant limb, likely facilitated by the superior goal-directed control of muscle spindle receptors. Our findings therefore suggest that fusimotor control may play a role in determining performance of complex motor behaviours and support existing proposals that the dominant arm is better supplied than the non-dominant arm for executing more complex tasks, such as trajectory control.

Place, publisher, year, edition, pages
John Wiley & Sons, 2023. Vol. 58, no 9, p. 3981-4001
Keywords [en]
goal-directed, handedness, movement preparation, non-dominant, stretch reflex
National Category
Neurosciences Physiology
Identifiers
URN: urn:nbn:se:umu:diva-216678DOI: 10.1111/ejn.16148ISI: 001067607300001PubMedID: 37727025Scopus ID: 2-s2.0-85171483566OAI: oai:DiVA.org:umu-216678DiVA, id: diva2:1814220
Funder
Swedish Research Council, 2020-02140Umeå University, 2.1.6-1119-1Available from: 2023-11-23 Created: 2023-11-23 Last updated: 2023-11-23Bibliographically approved

Open Access in DiVA

fulltext(3763 kB)68 downloads
File information
File name FULLTEXT01.pdfFile size 3763 kBChecksum SHA-512
5eb9d783e786240b2497dead023d3cae8451288a5199f7c93cf3165e299ec2143cc84834c042fba8b46776873d1fb5d8e8cdb0c328c5deddadc6531aa11c1ba7
Type fulltextMimetype application/pdf

Other links

Publisher's full textPubMedScopus

Authority records

Torell, FridaDimitriou, Michael

Search in DiVA

By author/editor
Torell, FridaDimitriou, Michael
By organisation
Physiology
In the same journal
European Journal of Neuroscience
NeurosciencesPhysiology

Search outside of DiVA

GoogleGoogle Scholar
Total: 68 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
pubmed
urn-nbn

Altmetric score

doi
pubmed
urn-nbn
Total: 214 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf