Shahid, Salman and Wen, Peng and Ahfock, Tony (2011) Effect of fat and muscle tissue conductivity on cortical currents - a tDCS study. In: 2011 IEEE/ICME International Conference on Complex Medical Engineering (CME 2011), 22-25 May 2011, Harbin, China.
Cortical current density distribution induced by tDCS has been assessed using an anatomically accurate high esolution finite element head model. The study examines the influence of low conductive fat tissue and muscle layers on cortical modulation. Comparison between commonly used 5 layers and proposed 7 layers head model has been carried out using statistical matrices (RDM, MAG and CC). Results indicate that fat and muscle tissue have a profound effect on cortical current distribution. These layers reduce the effective volume of scalp, thus leading to a reduction in the preferential current pathways around scalp. These findings support the need of more complex head models so that more accurate estimates can be made on the effects of cortical current stimulation on neurons.
|Item Type:||Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)|
|Additional Information:||Permanent restricted access to published version due to publisher copyright policy.|
|Uncontrolled Keywords:||tDCS; tissue conductivity; cortical modulation; fat tissue; head model; high resolution; muscle layers; muscle tissues; finite element model|
|Depositing User:||Mr Syed Salman Shahid|
|Date Deposited:||04 Aug 2011 05:26|
|Last Modified:||03 Jul 2013 00:43|
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