David P. M. Northmore
D.Phil., University of Sussex, England, 1973
Department of Psychology
Phone: Office (302) 831-3692: Lab 831-1701: Fax
Office: Room 228 Wolf Hall
Dr. Northmore is a neuroscientist who joined the faculty of the Psychology
Department in 1989. His research employs behavioral and electrophysiological
approaches to the visual systems of lower vertebrates, particularly the
midbrain optic tectum and nuclei closely associated with it. Exploiting
the remarkable capacity of the fish optic nerve to regenerate after damage,
he has studied the remapping of the visual field on the tectum during regeneration,
and the subsequent recovery of visually guided behavior. Recent work applies
this knowledge to model sensorimotor behavior using networks of electronic
neurons fabricated in silicon by VLSI techniques. The research on artificial
neurons is being done with Dr. John Elias of the Electrical Engineering
Department and is currently supported by two grants from the National Science
Research on the fish visual system is being carried out by three graduate
students. Dong-Jin Oh is correlating receptive field properties of retinal
ganglion cells with their axonal conduction velocity in normal and regenerating
optic nerves. Shawn Gallagher is recording from different sites in the
visual system, comparing the coding of color information.
Elias, J. G., & Northmore, D. P. M. (1995). Switched-capacitor neuromorphs
with wide-range variable dynamics. IEEE Transactions on Neural Networks,
Elias, J. G., & Northmore, D. P. M. (1995). VLSI neuromorphs: Building
blocks for neural circuits. In The neurobiology of computation (pp.
385-390). Kluwer Academic Publishers, Boston.
Hartline, P. H., Vimal, R. L. P., King, A. J., Kurylo, D. D., & Northmore,
D. P. M. (1995). Effects of eye position on auditory localization and neural
representation of space in superior colliculus of cats. Exp. Brain Res.,
Gibbs, M. A., & Northmore, D. P. M. (1996). The role of the torus longitudinalis
in the dorsal light reflex. Brain Behav. Evol., 48:115-120.
Northmore, D. P. M., & Elias, J. G. (1996). Spike train processing
by a silicon neuromorph: The role of sublinear summation in dendrites.
Neural Computation , 8:1245-1265.
Elias, J. G., Northmore, D. P. M., & Westerman, W. (1997). An analog
memory device for spiking silicon neurons. Neural Computation, 9:419-440.
Northmore, D. P. M., & Oh, D-J. (1997). Axonal conduction velocities
of functionally characterized retinal ganglion cells in goldfish. Journal
of Physiology, in press.