VIEWS: 23 PAGES: 5 CATEGORY: Medicine POSTED ON: 5/28/2010
Transcallosal conduction time (TCT), based on the results of transcranial magnetic stimulation studies, is currently calculated as a function of the ipsilateral silent period (iSP) and of the motor evoked potential (MEP) obtained from a target muscle (TCTcurrent = iSP latency - MEP latency). We argue that this measure overestimates TCT and may lead to a bias in statistical group comparisons. We propose an alternative measure, TCTproposed, which we defined as TCTproposed = iSP latency - cSP latency, where cSP is the contralateral silent period. We report our results on the comparison of the two measures in twenty healthy individuals and provide a theoretical basis for TCTproposed.
On the calculation of transcallosal conduction time using transcranial magnetic stimulation Spyros N. Deftereos, MD, PhDa,b tor cortex ipsilateral to the target muscle (usually the first Gregory Panagopoulos, MDa
Pages to are hidden for
"On the calculation of transcallosal conduction time using transcranial magnetic stimulation"Please download to view full document