David W. Marshak

David W. Marshak, PhD, is a Professor at The University of Texas Health Science Center at Houston. His research focuses on neural circuits in the primate retina, particularly the synaptic organization of color vision pathways. Current work includes collaborative studies with the Neitz Laboratory at the University of Washington to analyze blue cone processing in macaque retinas using serial block-face electron microscopy and neuronal reconstruction.

• Key research areas include retinal connectome mapping, synaptic interactions between bipolar cells and midget ganglion cells, and the role of H2 horizontal cells in color perception.
• His publications emphasize histamine's role in modulating retinal neurons, synaptic organization of color opponent pathways, and comparative studies across primate and non-primate retinas.
• Notable collaborative investigations address fundamental questions about retinal circuitry's contribution to visual signal processing and potential implications for color vision disorders.