Feasibility study of imaging fast neural activity in retinal tissue using Electrical Impedance Tomography
Danyi Zhu, Xiunan Fang, Calvin Eiber, James Avery, David Holder, Alistair McEwan
Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) | IEEE | Published : 2017
Electrical Impedance Tomography has been recently applied to image fast neural activity in the somatosensory cerebral cortex. This non-invasive imaging modality has the unique advantage of high spatial-temporal resolution in millimeters over milliseconds. This work was designed to test an existing 32-channel EIT system, a modified UCL ScouseTom, and to discuss the feasibility of imaging neural activity in retinal tissue through computer simulation. The finite element method was used to model a retinal slice with a realistic conductivity-depth profile of the macaque eye. The conductivity perturbation was simulated in five different layers of the model. 5μVRMS white noise was added to boundary..View full abstract
This work was supported by a Faculty of Engineering Mid Career Researcher Grant and the Australian Institute for Nanoscale Science and Technology at The University of Sydney. The authors would like to thank Weilong Wang and James Avery for their assistance.