Ian Nauhaus

Interests

Visual cortex, two-photon imaging, intrinsic signal imaging, electrophysiology, optogenetics, circuits, functional architecture, population codes

Biography

Dr. Nauhaus plans to accept a graduate student for Fall 2019.

Ian is a faculty member in the departments of Neuroscience and Psychology, researching coding strategies and corresponding mechanisms of the brain’s visual system. We primates rely heavily on vision to guide our behavior and perceive the world. By probing the circuits of the visual system with light from a computer monitor, our hope is to uncover general principles of how a healthy brain processes input from the natural environment. Many recently developed experimental tools for measuring activity of neural circuits should allow for new leaps in our understanding of the brain. Ian’s lab employs multiple imaging and electrophysiological methods to measure activity at different spatial and temporal scales within the visual cortex. Data from these experimental tools are combined to develop computational models of how populations of cells in the visual system encode visual input.

Courses

Publications

Rhim I., Coello-Reyes G., Ko HK., Nauhaus I. (2017) Maps of cone opsin input to mouse V1 and higher visual areas. Journal of Neurophys. 117:1674-82.

Juavinett A.L., Nauhaus I., Garrett M., Zhuang J., Callaway M.E. (2017) Automated identification of mouse visual areas with intrinsic signal imaging. Nature Protocols. 12:32-43.

Nauhaus I., Nielsen K.J., Callaway E.M. (2016) Efficient Receptive Field Tiling in Primate V1. Neuron. 4:893-904.

Garrett M., Nauhaus I., Marshel J.H., Callaway M. (2014) Topography and areal organization of mouse visual cortex.  J. Neurosci. 37:12587-12600.

Nauhaus I., Nielsen K.J. (2014) Building maps from maps in primary visual cortex. Curr Opinion in Neurobiology 24:1-6.

Nauhaus I., Nielsen K.J., Disney A.A., Callaway E.M. (2012) Orthogonal micro-organization of orientation and spatial frequency in primate primary visual cortex. Nature Neuroscience 12:1683-90.

Marshel J.H., Kaye A.P., Nauhaus I., Callaway E.M. (2012) Anterior-posterior direction opponency in the superficial mouse lateral geniculate nucleus. 4:713-20 Neuron.

Sato T.K., Nauhaus I., Carandini M. (2012) Traveling waves in visual cortex. Neuron. 2:218-29.

Nauhaus I., Busse L., Ringach D.L., Carandini M. (2012) Robustness of traveling waves in visual cortex. Journal of Neuroscience.  9:3088-94.

Marshel J.H., Garrett M., Nauhaus I., Callaway M. (2011) Functional specialization of seven mouse visual cortical areas. Neuron. 6:1040-54

Nauhaus I., Nielsen K.J., Callaway E.M. (2011) Nonlinearity of two-photon Ca²⁺ imaging yields distorted measurements of tuning for V1 neuronal populations. Journal of Neurophysiology. 3:923-36.

Nauhaus I., Busse L., Carandini M., Ringach D.L. (2009). Stimulus contrast modulates functional connectivity in visual cortex. Nature Neuroscience. 1:70-6.

Nauhaus I., Benucci A., Carandini M., Ringach D.L. (2008). Neuronal selectivity and local map structure in visual cortex. Neuron, 57: 637-639.

Nauhaus I., Ringach D.L. (2007). Precise alignment of micro-machined electrode arrays with V1 functional maps. Journal of Neurophysiology, 97: 3781-3789.