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Kariminezhad S, Karhu J, Säisänen L, et al. Brain Response Induced with Paired Associative Stimulation Is Related to Repetition Suppression of Motor Evoked Potential. Brain Sci. 2020;10(10)doi: 10.3390/brainsci10100674.
Kariminezhad, S., Karhu, J., Säisänen, L., Reijonen, J., Könönen, M., & Julkunen, P. (2020). Brain Response Induced with Paired Associative Stimulation Is Related to Repetition Suppression of Motor Evoked Potential. Brain sciences, 10(10), . https://doi.org/10.3390/brainsci10100674
Kariminezhad, Shohreh, et al. "Brain Response Induced with Paired Associative Stimulation Is Related to Repetition Suppression of Motor Evoked Potential." Brain sciences vol. 10,10 (2020). doi: https://doi.org/10.3390/brainsci10100674
Kariminezhad S, Karhu J, Säisänen L, Reijonen J, Könönen M, Julkunen P. Brain Response Induced with Paired Associative Stimulation Is Related to Repetition Suppression of Motor Evoked Potential. Brain Sci. 2020 Sep 26;10(10). doi: 10.3390/brainsci10100674. PMID: 32993079; PMCID: PMC7600030.
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Brain Sci. 2020 Sep 26;10(10). doi: 10.3390/brainsci10100674.

Brain Response Induced with Paired Associative Stimulation Is Related to Repetition Suppression of Motor Evoked Potential.

Brain sciences

Shohreh Kariminezhad, Jari Karhu, Laura Säisänen, Jusa Reijonen, Mervi Könönen, Petro Julkunen

Affiliations

  1. Department of Applied Physics, University of Eastern Finland, 70211 Kuopio, Finland.
  2. Department of Clinical Neurophysiology, Kuopio University Hospital, 70029 Kuopio, Finland.
  3. Nexstim Plc, 00510 Helsinki, Finland.
  4. Department of Clinical Radiology, Kuopio University Hospital, 70029 Kuopio, Finland.

PMID: 32993079 PMCID: PMC7600030 DOI: 10.3390/brainsci10100674

Abstract

Repetition suppression (RS), i.e., the reduction of neuronal activity upon repetition of an external stimulus, can be demonstrated in the motor system using transcranial magnetic stimulation (TMS). We evaluated the RS in relation to the neuroplastic changes induced by paired associative stimulation (PAS). An RS paradigm, consisting of 20 trains of four identical suprathreshold TMS pulses 1 s apart, was assessed for motor-evoked potentials (MEPs) in 16 healthy subjects, before and following (at 0, 10, and 20 min) a common PAS protocol. For analysis, we divided RS into two components: (1) the ratio of the second MEP amplitude to the first one in RS trains, i.e., the "dynamic" component, and (2) the mean of the second to fourth MEP amplitudes, i.e., the "stable" component. Following PAS, five subjects showed change in the dynamic RS component. However, nearly all the individuals (

Keywords: neuroplasticity; paired associative stimulation; repetition suppression; transcranial magnetic stimulation

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