Neural stimulation with optical radiation
Laser Photon Rev. Author manuscript; available in PMC 2012 October 16.
Lee et al.  have demonstrated that neurons of the central auditory system can be stimulated via INS.
4. Possible mechanisms for optical stimulation of neurons
Although some regimes of optical stimulation occur via photochemical interaction (see earlier sections), it is unlikely that pulsed, mid-infrared lasers, such as the FEL, Ho:YAG, or Aculight diode lasers, evoke neural responses via a photochemical reaction. The individual photon energies emitted by these lasers are significantly lower than the energies required to move an electron to an excited state, as is needed for a photochemical reaction.
Read More at: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3472451/
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February 24, 2013 at 1:29 am
Tagged with Brain, Cerebral cortex, Cochlea, cochlear implants, deafening, electrical stimulation, fiber-optics, fMRI, Functional magnetic resonance imaging, Human, Human brain, infrared, infrared neural stimulation, laser, neural stimulation, neuroprosthesis, optical stimulation, pulse infrared lasers, radiation, Research, spatial selectivity