Merry Christmas and Happy New Year, 2011

Merry Christmas and Happy New Year to you from all of us at Webvision.  This image, a Christmas wreath created by Robert E. Marc is composed of 104 rod bipolar cell axonal fields from the world’s first complete connectome with synaptic level resolution.  Each bipolar cell in this field has been annotated from ultrastructural data revealing its extent and connectivities to other cell classes.  The rod bipolar cells have been rendered out in 3D and is viewed from the top, or photoreceptor side, looking down towards the ganglion cell layer.

 

 

Notable Paper: Acute vision in the giant Cambrian predator Anomalocaris and the origin of compound eyes

Because knowing where we have come from with respect to the evolution of vision is so important, this paper by John R. Paterson, Diego C. García-Bellido, Michael S. Y. Lee, Glenn A. Brock, James B. Jago and Gregory D. Edgecombe gets our nod for a notable paper.  It does not hurt that I have a fascination with the evolution of vision as well.  Its just unfortunate that our obsession, the retina is not preserved in the fossil record.   Continue reading “Notable Paper: Acute vision in the giant Cambrian predator Anomalocaris and the origin of compound eyes”

Optic Nerve Head

Another amazing image sent to us by Gabriel Luna out of the Steve Fisher and Geoff Lewis’s retinal cell biology group at UC Santa Barbara Neuroscience Research Institute.  This image is of the optic nerve head of a normal mouse retina displaying the “glial tubes” formed by the astrocytic network (anti-GFAP; red).  Anti-GFP (green) and anti-Collagen IV (blue) which were used to determine numbers of astrocytes and relative locations in relation to blood vessels.