用于丘脑视觉假体的电极放置模拟。
Simulations of electrode placement for a thalamic visual prosthesis.
作者信息
Pezaris John S, Reid R Clay
机构信息
Neurosurgery Department, Massachusetts General Hospital, Boston, MA 02114, USA.
出版信息
IEEE Trans Biomed Eng. 2009 Jan;56(1):172-8. doi: 10.1109/TBME.2008.2005973.
Abstract
In this paper, placement parameters for microstimulation electrodes in a visual prosthesis are evaluated based on retinotopic models of macaque and human lateral geniculate nucleus. Phosphene patterns were simulated for idealized microwire electrodes as well as for currently available clinical electrodes. For idealized microwire electrodes, spacing as large as 600 microm in three dimensions would allow for over 250 phosphenes per visual hemifield in macaques, and over 800 in humans.
摘要
在本文中，基于猕猴和人类外侧膝状体的视网膜拓扑模型，对视觉假体中微刺激电极的放置参数进行了评估。针对理想化的微丝电极以及目前可用的临床电极模拟了光幻视模式。对于理想化的微丝电极，在三维空间中高达600微米的间距将允许猕猴每个视觉半视野产生超过250个光幻视，人类则超过800个。
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