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Functional optical coherence tomography for detecting neural activity through scattering changes.

Mariya Lazebnik·Daniel L Marks·Kurt Potgieter·Rhanor Gillette·Stephen A Boppart
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Abstract

We have demonstrated functional optical coherence tomography (fOCT) for neural imaging by detecting scattering changes during the propagation of action potentials through neural tissue. OCT images of nerve fibers from the abdominal ganglion of the sea slug Aplysia californica were taken before, during, and after electrical stimulation. Images acquired during stimulation showed localized reversible increases in scattering compared with those acquired before stimulation. Motion-mode OCT images of nerve fibers showed transient scattering changes from spontaneous action potentials. These results demonstrate that OCT is sensitive to the optical changes in electrically active nerve fibers.

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AbdomenAction PotentialsAnimalsAplysiaElectric StimulationGangliaOptics and PhotonicsScattering, RadiationTomographyJournal ArticleResearch Support, Non-U.S. Gov'tResearch Support, U.S. Gov't, Non-P.H.S.Research Support, U.S. Gov't, P.H.S.

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Mariya Lazebnik, Daniel L Marks, Kurt Potgieter, Rhanor Gillette, Stephen A Boppart. 2003-07-15. Functional optical coherence tomography for detecting neural activity through scattering changes.. https://doi.org/10.1364/ol.28.001218

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