dc.contributor.author |
Cadwallader, Claire J |
|
dc.contributor.author |
Steiniger, Jennifer |
|
dc.contributor.author |
Cooper, Patrick S |
|
dc.contributor.author |
Zhou, Shou-Han |
|
dc.contributor.author |
Hendrikse, Joshua |
|
dc.contributor.author |
Sumner, Rachael L |
|
dc.contributor.author |
Kirk, Ian J |
|
dc.contributor.author |
Chong, Trevor T-J |
|
dc.contributor.author |
Coxon, James P |
|
dc.coverage.spatial |
England |
|
dc.date.accessioned |
2023-07-13T04:22:48Z |
|
dc.date.available |
2023-07-13T04:22:48Z |
|
dc.date.issued |
2023-05 |
|
dc.identifier.citation |
(2023). Scientific Reports, 13(1), 7491-. |
|
dc.identifier.issn |
2045-2322 |
|
dc.identifier.uri |
https://hdl.handle.net/2292/64759 |
|
dc.description.abstract |
Long-term potentiation (LTP) is a form of neuroplasticity commonly implicated in mechanistic models of learning and memory. Acute exercise can boost LTP in the motor cortex, and is associated with a shift in excitation/inhibition (E:I) balance, but whether this extends to other regions such as the visual cortex is unknown. We investigated the effect of a preceding bout of exercise on LTP induction and the E:I balance in the visual cortex using electroencephalography (EEG). Young adults (N = 20, mean age = 24.20) engaged in 20 min of high-intensity interval training (HIIT) exercise and rest across two counterbalanced sessions. LTP was induced using a high frequency presentation of a visual stimulus; a "visual tetanus". Established EEG markers of visual LTP, the N1b and P2 component of the visual evoked potential, and an EEG-derived measure of the E:I balance, the aperiodic exponent, were measured before and after the visual tetanus. As expected, there was a potentiation of the N1b following the visual tetanus, with specificity to the tetanised stimulus, and a non-specific potentiation of the P2. These effects were not sensitive to a preceding bout of exercise. However, the E:I balance showed a late shift towards inhibition following the visual tetanus. A preceding bout of exercise resulted in specificity of this E:I balance shift to the tetanised stimulus, that was not seen following rest. This novel finding suggests a possible exercise-induced tuning of the visual cortex to stimulus details following LTP induction. |
|
dc.format.medium |
Electronic |
|
dc.language |
eng |
|
dc.publisher |
Springer Nature |
|
dc.relation.ispartofseries |
Scientific reports |
|
dc.rights |
Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. |
|
dc.rights.uri |
https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm |
|
dc.rights.uri |
http://creativecommons.org/licenses/by/4.0/ |
|
dc.subject |
Neocortex |
|
dc.subject |
Visual Cortex |
|
dc.subject |
Humans |
|
dc.subject |
Tetanus |
|
dc.subject |
Exercise |
|
dc.subject |
Evoked Potentials, Visual |
|
dc.subject |
Adult |
|
dc.subject |
Young Adult |
|
dc.subject |
Eye Disease and Disorders of Vision |
|
dc.subject |
Neurosciences |
|
dc.subject |
Neurological |
|
dc.title |
Acute exercise as a modifier of neocortical plasticity and aperiodic activity in the visual cortex. |
|
dc.type |
Journal Article |
|
dc.identifier.doi |
10.1038/s41598-023-34749-w |
|
pubs.issue |
1 |
|
pubs.begin-page |
7491 |
|
pubs.volume |
13 |
|
dc.date.updated |
2023-06-28T20:47:41Z |
|
dc.rights.holder |
Copyright: The authors |
en |
dc.identifier.pmid |
37161049 (pubmed) |
|
pubs.author-url |
https://www.ncbi.nlm.nih.gov/pubmed/37161049 |
|
pubs.publication-status |
Published |
|
dc.rights.accessrights |
http://purl.org/eprint/accessRights/OpenAccess |
en |
pubs.subtype |
Research Support, Non-U.S. Gov't |
|
pubs.subtype |
research-article |
|
pubs.subtype |
Journal Article |
|
pubs.elements-id |
960950 |
|
pubs.org-id |
Science |
|
pubs.org-id |
Psychology |
|
dc.identifier.eissn |
2045-2322 |
|
dc.identifier.pii |
10.1038/s41598-023-34749-w |
|
pubs.number |
7491 |
|
pubs.record-created-at-source-date |
2023-06-29 |
|
pubs.online-publication-date |
2023-05-09 |
|