Surface neural activity has been widely visualized using optical intrinsic signal imaging (OISI) from various cortical sensory areas. OISI of the cortical surface with a CCD camera gives integrated information across a depth of a few hundred micrometers. We visualize depth-resolved activation patterns of cat primary visual cortex by functional optical coherence tomography (fOCT). A comparison of the depth-integrated results of fOCT maps with the optical intrinsic signal profiles shows fairly good agreement. Our results reveal layerspecific activation patterns and indicate that the activation was not homogeneous.
|Number of pages||3|
|Publication status||Published - 2007 Sept 1|
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics