O2-037 Reliability of resting motor threshold, short interval intracortical inhibition and intracortical facilitation determined by adaptive threshold hunting method
نویسندگان
چکیده
منابع مشابه
Influence of short-interval intracortical inhibition on short-interval intracortical facilitation in human primary motor cortex.
Using the paired-pulse paradigm, transcranial magnetic stimulation (TMS) has revealed much about the human primary motor cortex (M1). A preceding subthreshold conditioning stimulus (CS) inhibits the excitability of the motor cortex, which is named short-interval intracortical inhibition (SICI). In contrast, facilitation is observed when the first pulse (S1) is followed by a second one at thresh...
متن کاملShort-interval intracortical inhibition: Comparison between conventional and threshold-tracking techniques
BACKGROUND Short-interval intracortical inhibition (SICI) is conventionally measured as the relative amplitude reduction of motor evoked potentials (MEPs) by subthreshold conditioning stimuli. In threshold-tracking SICI (T-SICI), stimulus intensity is instead adjusted repeatedly to maintain a constant MEP and inhibition is measured as the relative threshold increase. T-SICI is emerging as a use...
متن کاملInfluence of short - interval intracortical inhibition on short - interval intracortical 1
27 Using the paired-pulse paradigm, transcranial magnetic stimulation (TMS) has 28 revealed much about the human primary motor cortex (M1). A preceding 29 subthreshold conditioning stimulus (CS) inhibits the excitability of the motor cortex, 30 which is named short-interval intracortical inhibition (SICI). In contrast, facilitation is 31 observed when the first pulse (S1) is followed by a secon...
متن کاملActive and resting motor threshold are efficiently obtained with adaptive threshold hunting
Transcranial magnetic studies typically rely on measures of active and resting motor threshold (i.e. AMT, RMT). Previous work has demonstrated that adaptive threshold hunting approaches are efficient for estimating RMT. To date, no study has compared motor threshold estimation approaches for measures of AMT, yet this measure is fundamental in transcranial magnetic stimulation (TMS) studies that...
متن کاملHeritability of intracortical inhibition and facilitation.
The present twin study investigates heritability of motor cortex excitability, measured by the paired pulse transcranial magnetic stimulation technique. Specifically, intracortical facilitation (ICF) and inhibition (ICI) and corticospinal excitability were tested in monozygotic (MZ), dizygotic (DZ), and unrelated pairs (UP). Robust ICF and ICI effects were found, with a higher similarity of MZ ...
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ژورنال
عنوان ژورنال: Clinical Neurophysiology
سال: 2020
ISSN: 1388-2457
DOI: 10.1016/j.clinph.2020.04.135