Task-dependent interaction between parietal and contralateral primary motor cortex during explicit versus implicit motor imagery.
Both mental rotation (MR) and motor imagery (MI) involve an internalization of movement within motor and parietal cortex. Transcranial magnetic stimulation (TMS) techniques allow for a task-dependent investigation of the interhemispheric interaction between these areas. We used image-guided dual-coi...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Public Library of Science (PLoS)
2012-01-01
|
| Series: | PLoS ONE |
| Online Access: | https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22693579/pdf/?tool=EBI |
| _version_ | 1818404463748055040 |
|---|---|
| author | Florent Lebon Martin Lotze Cathy M Stinear Winston D Byblow |
| author_facet | Florent Lebon Martin Lotze Cathy M Stinear Winston D Byblow |
| author_sort | Florent Lebon |
| collection | DOAJ |
| description | Both mental rotation (MR) and motor imagery (MI) involve an internalization of movement within motor and parietal cortex. Transcranial magnetic stimulation (TMS) techniques allow for a task-dependent investigation of the interhemispheric interaction between these areas. We used image-guided dual-coil TMS to investigate interactions between right inferior parietal lobe (rIPL) and left primary motor cortex (M1) in 11 healthy participants. They performed MI (right index-thumb pinching in time with a 1 Hz metronome) or hand MR tasks, while motor evoked potentials (MEPs) were recorded from right first dorsal interosseous. At rest, rIPL conditioning 6 ms prior to M1 stimulation facilitated MEPs in all participants, whereas this facilitation was abolished during MR. While rIPL conditioning 12 ms prior to M1 stimulation had no effect on MEPs at rest, it suppressed corticomotor excitability during MI. These results support the idea that rIPL forms part of a distinct inhibitory network that may prevent unwanted movement during imagery tasks. |
| first_indexed | 2024-12-14T08:40:33Z |
| format | Article |
| id | doaj.art-d30c666ab5d7447cba769500c6f50032 |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-14T08:40:33Z |
| publishDate | 2012-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-d30c666ab5d7447cba769500c6f500322022-12-21T23:09:18ZengPublic Library of Science (PLoS)PLoS ONE1932-62032012-01-0175e3785010.1371/journal.pone.0037850Task-dependent interaction between parietal and contralateral primary motor cortex during explicit versus implicit motor imagery.Florent LebonMartin LotzeCathy M StinearWinston D ByblowBoth mental rotation (MR) and motor imagery (MI) involve an internalization of movement within motor and parietal cortex. Transcranial magnetic stimulation (TMS) techniques allow for a task-dependent investigation of the interhemispheric interaction between these areas. We used image-guided dual-coil TMS to investigate interactions between right inferior parietal lobe (rIPL) and left primary motor cortex (M1) in 11 healthy participants. They performed MI (right index-thumb pinching in time with a 1 Hz metronome) or hand MR tasks, while motor evoked potentials (MEPs) were recorded from right first dorsal interosseous. At rest, rIPL conditioning 6 ms prior to M1 stimulation facilitated MEPs in all participants, whereas this facilitation was abolished during MR. While rIPL conditioning 12 ms prior to M1 stimulation had no effect on MEPs at rest, it suppressed corticomotor excitability during MI. These results support the idea that rIPL forms part of a distinct inhibitory network that may prevent unwanted movement during imagery tasks.https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22693579/pdf/?tool=EBI |
| spellingShingle | Florent Lebon Martin Lotze Cathy M Stinear Winston D Byblow Task-dependent interaction between parietal and contralateral primary motor cortex during explicit versus implicit motor imagery. PLoS ONE |
| title | Task-dependent interaction between parietal and contralateral primary motor cortex during explicit versus implicit motor imagery. |
| title_full | Task-dependent interaction between parietal and contralateral primary motor cortex during explicit versus implicit motor imagery. |
| title_fullStr | Task-dependent interaction between parietal and contralateral primary motor cortex during explicit versus implicit motor imagery. |
| title_full_unstemmed | Task-dependent interaction between parietal and contralateral primary motor cortex during explicit versus implicit motor imagery. |
| title_short | Task-dependent interaction between parietal and contralateral primary motor cortex during explicit versus implicit motor imagery. |
| title_sort | task dependent interaction between parietal and contralateral primary motor cortex during explicit versus implicit motor imagery |
| url | https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22693579/pdf/?tool=EBI |
| work_keys_str_mv | AT florentlebon taskdependentinteractionbetweenparietalandcontralateralprimarymotorcortexduringexplicitversusimplicitmotorimagery AT martinlotze taskdependentinteractionbetweenparietalandcontralateralprimarymotorcortexduringexplicitversusimplicitmotorimagery AT cathymstinear taskdependentinteractionbetweenparietalandcontralateralprimarymotorcortexduringexplicitversusimplicitmotorimagery AT winstondbyblow taskdependentinteractionbetweenparietalandcontralateralprimarymotorcortexduringexplicitversusimplicitmotorimagery |