ArticleExperimental brain research2005
Corticospinal disinhibition during dual action.
Article in Experimental brain research, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
What it found
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Who cites it
9 citing papers in PubMed, 21 citations in OpenAlex.
- Trial
- Employing a single trial motor equivalent analysis for the assessment of motor learning.Experimental brain research · 2025Article
- The effect of dual-task difficulty on the inhibition of the motor cortex.Experimental brain research · 2016Article
- Effects of muscle relaxation on sustained contraction of ipsilateral remote muscle.Physiological reports · 2015Article
- Aging causes a reorganization of cortical and spinal control of posture.Frontiers in aging neuroscience · 2014Review
- Corticomotor responses to attentionally demanding motor performance: a mini-review.Frontiers in psychology · 2013Article
- Cortical silent period duration and its implications for surround inhibition of a hand muscle.The European journal of neuroscience · 2012Article
- Alterations in human motor cortex during dual motor task by transcranial magnetic stimulation study.Experimental brain research · 2011Article
- Disinhibition of upper limb motor area by voluntary contraction of the lower limb muscle.Experimental brain research · 2007Article
Corrections and comments
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Authors and funding
3 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
When attempting to perform two tasks simultaneously, the human motor as well as the cognitive system shows interference. Such interference often causes altered activation of the cortical area representing each task compared to the single task condition. We investigated changes in corticospinal inhibition during dual action by transcranial magnetic stimulation (TMS). Single-pulse TMS was applied to the left motor cortex, triggered by right leg movement (tibialis anterior muscle) while the right abductor digiti minimi (ADM) muscle was moderately activated (10-20% of the maximal voluntary contraction). The background electromyography (EMG) activity of ADM was measured before and during the leg movement. The silent period (SP) and amplitude of motor evoked potential (MEP) following magnetic stimulation in active ADM were compared for the conditions with and without leg movement. The mean area of the rectified EMG activity of ADM did not alter, while the SP was significantly shortened during leg movement compared to that without leg movement. MEP amplitude was comparable between the two conditions. These results suggest that corticospinal inhibition tested by the SP duration is reduced during the movement of another body part, presumably in order to help maintain muscle force by compensating interference-related alteration in motor cortical activation.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.