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A standardized motor threshold estimation procedure for transcranial magnetic stimulation research
Dennis J L G Schutter1, Jack van Honk
1Experimental Psychology, Helmholtz Research Institute, Utrecht University, Utrecht, The Netherlands. d.schutter@fss.uu.nl
Objectives:
To introduce and to test a simple standardized motor threshold (MT) estimation procedure for transcranial magnetic stimulation (TMS) research.
Methods:
A 5-step MT estimation procedure was introduced, and interestimator reliability was tested by comparing MTs as determined by an experienced and a trainee TMS researcher in a double-blind design.
Results:
The parametric Pearson correlation between the MTs of the experienced and the MTs of the trainee TMS researcher was 0.95 (P < 0.001).
Conclusions:
The currently proposed estimation procedure may be helpful in obtaining reliable MT values in experimental and clinical settings.
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