MEMS neuroprosthetic system outlines

Neuroprosthetic Systems

From the literature, it is possible to generalize three different situations for MEMS-based neuroprosthetic systems and to identify similarities and differences between them that affect the circuit design. These are systems located in the central nervous system (CNS), systems located in the peripheral nervous system (PNS), and those located in the eye (retinal prostheses). With this in mind, it is possible to outline generic systems, and use these as a basis for discussion of the individual...

Retinal anatomy and physiology

Retinal Anatomy

If one were to observe a normal human retina through an ophthalmoscope, one would see the gross morphological features illustrated in Figure 11.2. On the right side of the figure is the head of the optic nerve, also called the optic disk. A number of blood vessels originate from approximately the center of the optic disk and spread to cover much of the inner retina the side of the retina closest to the lens . These vessels are supplied by the central artery and vein of the retina, which pass...

References

Hodgkin, A.L. and Huxley, A.F., A quantitative description of membrane current and its application to conduction and excitation in nerve, J. Physiol., 117, 500-544, 1952. McNeal, D.R., Analysis of a model for excitation of myelinated nerve, IEEE Trans. Biomed. Eng., BME-23, 329-337, 1976. Rattay, F., Analysis of models for external stimulation of axons, IEEE Trans. Biomed. Eng., 33, 974-977, 1986. Rattay, F., Analysis of models for extracellular fiber stimulation, IEEE Trans. Biomed. Eng.,...