[Simnibs-discuss] Details about coil-to-cortex measurement

Axel Thielscher axelt at drcmr.dk
Tue Dec 21 19:43:55 CET 2021

Hi Dan,

it is option b).



On 12/21/2021 7:29 PM, Mccalley, Daniel wrote:
> Hi all,
> Could you provide some more information on the coil-to-cortex distance 
> that is provided during efield modeling?
> Does this distance represent a) the distance between the modeled 
> stimulation site and the nearest point on the cortex directly under 
> that site, or b) the shortest distance between the stimulation and the 
> nearest point on the cortex near the stimulation site?
> In other words, does this distance come from drawing a straight line 
> under the coil until the cortex is reached, or is the line a diagonal 
> such that the distance to a closer, neighboring part of the cortex is 
> measured?
> Best,
> Dan McCalley
> Medical University of South Carolina
> College of Graduate Studies, Neuroscience
> (he/him)
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Dr. Axel Thielscher
Professor of Neurophysics and Neuroimaging
Danish Research Center for Magnetic Resonance
Copenhagen University Hospital Hvidovre
DK-2650 Hvidovre, Denmark
Department of Health Technology
Technical University of Denmark
DK-2800 Kgs. Lyngby
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