Optical imaging of electrically evoked visual signals in cats. I, Responses to corneal and intravitreal electrical stimulation

Yan T. Wong, Luke E. Hallum, Spencer C. Chen, Norbert B. Dommel, Shaun L. Cloherty, John W. Morley, Gregg J. Suaning, Nigel H. Lovell

    Research output: Chapter in Book / Conference PaperConference Paper

    Abstract

    ![CDATA[Microelectronic retinal prostheses have been shown to restore the perception of light to the blind through electrical stimulation. Conventional recording techniques such as recording electrode arrays on the visual cortex can give a basic understanding of the events that occur during such stimulation events, but their finite size and number limits the spatial resolution achievable with them. Optical imaging of intrinsic signals (OIS imaging) allows for greater resolution (approximately 50 mum) of the activity in the cortex. This can be used to facilitate a greater understanding of the complex neurophysiological events that allow prosthetic vision. This paper shows responses to visual and electrical stimulation of the retina, and demonstrates that OIS imaging may be an effective technique in further refining stimulation techniques and implant designs for retinal prostheses.]]
    Original languageEnglish
    Title of host publication2007 Annual International Conference of the IEEE Engineering in Medicine and Biology Society : Lyon, France, 22-26 August 2007
    PublisherIEEE
    Number of pages4
    ISBN (Electronic)1424407877
    ISBN (Print)9781424407873
    Publication statusPublished - 2007
    EventIEEE Engineering in Medicine and Biology Society. Conference -
    Duration: 28 Aug 2012 → …

    Conference

    ConferenceIEEE Engineering in Medicine and Biology Society. Conference
    Period28/08/12 → …

    Keywords

    • imaging systems
    • optical imaging
    • visual cortex
    • artificial vision
    • optical imaging of intrinsic signals

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