Trial reportBrain stimulation
Measuring latency distribution of transcallosal fibers using transcranial magnetic stimulation.
Trial report in Brain stimulation. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Premotor cortices differentially influence contralateral motor cortex.Cerebral cortex (New York, N.Y. : 1991) · 2026Article
- Versatility of Transcranial Magnetic Stimulation: A Review of Diagnostic and Therapeutic Applications.Brain sciences · 2026Review
- Transcallosal inhibition does not influence subacute motor recovery in mild-to-moderate stroke.Brain : a journal of neurology · 2025Article
- Younger adult brain utilizes interhemispheric strategy via ipsilateral dorsal premotor cortex for fine control of dexterous finger movements, unlike the aging brain.Frontiers in aging neuroscience · 2025Article
- Theoretical proposal for restoration of hand motor function based on plasticity of motor-cortical interhemispheric interaction and its developmental rule.Frontiers in neurology · 2024Article
- Targeted Modulation of Human Brain Interregional Effective Connectivity With Spike-Timing Dependent Plasticity.Neuromodulation : journal of the International Neuromodulation Society · 2023Article
- Clinical diagnostic utility of transcranial magnetic stimulation in neurological disorders. Updated report of an IFCN committee.Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology · 2023Review
- Functional and Structural Properties of Interhemispheric Interaction between Bilateral Precentral Hand Motor Regions in a Top Wheelchair Racing Paralympian.Brain sciences · 2023Article
- Dose-response relationship between the variables of unilateral optogenetic stimulation and transcallosal evoked responses in rat motor cortex.Frontiers in neuroscience · 2022Article
- M1-P15 as a cortical marker for transcallosal inhibition: A preregistered TMS-EEG study.Frontiers in human neuroscience · 2022Article
Corrections and comments
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Authors and funding
8 authors.
Funding
Abstract
backgroundNeuroimaging technology is being developed to enable non-invasive mapping of the latency distribution of cortical projection pathways in white matter, and correlative clinical neurophysiological techniques would be valuable for mutual verification. Interhemispheric interaction through the corpus callosum can be measured with interhemispheric facilitation and inhibition using transcranial magnetic stimulation.
objectiveTo develop a method for determining the latency distribution of the transcallosal fibers with transcranial magnetic stimulation.
methodsWe measured the precise time courses of interhemispheric facilitation and inhibition with a conditioning-test paired-pulse magnetic stimulation paradigm. The conditioning stimulus was applied to the right primary motor cortex and the test stimulus was applied to the left primary motor cortex. The interstimulus interval was set at 0.1 ms resolution. The proportions of transcallosal fibers with different conduction velocities were calculated by measuring the changes in magnitudes of interhemispheric facilitation and inhibition with interstimulus interval.
resultsBoth interhemispheric facilitation and inhibition increased with increment in interstimulus interval. The magnitude of interhemispheric facilitation was correlated with that of interhemispheric inhibition. The latency distribution of transcallosal fibers measured with interhemispheric facilitation was also correlated with that measured with interhemispheric inhibition.
conclusionsThe data can be interpreted as latency distribution of transcallosal fibers. Interhemispheric interaction measured with transcranial magnetic stimulation is a promising technique to determine the latency distribution of the transcallosal fibers. Similar techniques could be developed for other cortical pathways.
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