Purpura, Keith P.

Publications

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selected publications

Regulation of arousal and performance of a healthy non-human primate using closed-loop central thalamic deep brain stimulation. International IEEE/EMBS Conference on Neural Engineering : [proceedings]. International IEEE EMBS Conference on Neural Engineering. 2023 Academic Article GET IT
Geometry of spiking patterns in early visual cortex: a topological data analytic approach. Journal of the Royal Society, Interface. 2022 Academic Article GET IT
Selective activation of central thalamic fiber pathway facilitates behavioral performance in healthy non-human primates. Scientific reports. 2021 Academic Article GET IT
Times cited: 4
Predicting task performance from biomarkers of mental fatigue in global brain activity. Journal of neural engineering. 2021 Academic Article GET IT
Times cited: 7
Robust modulation of arousal regulation, performance, and frontostriatal activity through central thalamic deep brain stimulation in healthy nonhuman primates. Journal of neurophysiology. 2016 Academic Article GET IT
Times cited: 43
Responses to orientation discontinuities in V1 and V2: physiological dissociations and functional implications. The Journal of neuroscience : the official journal of the Society for Neuroscience. 2014 Academic Article GET IT
Times cited: 19
Cannabinoid neuromodulation in the adult early visual cortex. PloS one. 2014 Academic Article GET IT
Times cited: 11
Gating of attentional effort through the central thalamus. Journal of neurophysiology. 2012 Academic Article GET IT
Times cited: 53
Long-term expression and safety of administration of AAVrh.10hCLN2 to the brain of rats and nonhuman primates for the treatment of late infantile neuronal ceroid lipofuscinosis. Human gene therapy methods. 2012 Academic Article GET IT
Times cited: 75
Sparse coding and high-order correlations in fine-scale cortical networks. Nature. 2010 Academic Article GET IT
Times cited: 232
Characterization of trial-to-trial fluctuations in local field potentials recorded in cerebral cortex of awake behaving macaque. Journal of neuroscience methods. 2009 Academic Article GET IT
Times cited: 8
Subpopulations of neurons in visual area v2 perform differentiation and integration operations in space and time. Frontiers in systems neuroscience. 2009 Academic Article GET IT
Times cited: 64
Laminar and orientation-dependent characteristics of spatial nonlinearities: implications for the computational architecture of visual cortex. Journal of neurophysiology. 2009 Academic Article GET IT
Times cited: 10
A Bayesian statistical analysis of behavioral facilitation associated with deep brain stimulation. Journal of neuroscience methods. 2009 Academic Article GET IT
Times cited: 29
Attentional modulation of adaptation in V4. The European journal of neuroscience. 2009 Academic Article GET IT
Times cited: 12
Modulation of arousal regulation with central thalamic deep brain stimulation. Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference. 2009 Academic Article GET IT
Times cited: 15
Comparing spectra and coherences for groups of unequal size. Journal of neuroscience methods. 2006 Academic Article GET IT
Times cited: 101
Responses of V1 neurons to two-dimensional hermite functions. Journal of neurophysiology. 2005 Academic Article GET IT
Times cited: 33
Analysis of perisaccadic field potentials in the occipitotemporal pathway during active vision. Journal of neurophysiology. 2003 Academic Article GET IT
Times cited: 46
Interspike intervals, receptive fields, and information encoding in primary visual cortex. The Journal of neuroscience : the official journal of the Society for Neuroscience. 2000 Academic Article GET IT
Times cited: 130
Age-related differences in visual perception: a PET study. Neurobiology of aging. 2000 Academic Article GET IT
Times cited: 35
Striate cortex in humans demonstrates the relationship between activation and variations in visual form. Experimental brain research. 2000 Academic Article GET IT
Times cited: 14
Estimation of information in neuronal responses. Trends in neurosciences. 1999 Letter GET IT
Times cited: 2
Gating of local network signals appears as stimulus-dependent activity envelopes in striate cortex. Journal of neurophysiology. 1999 Academic Article GET IT
Times cited: 13
Cortical regions involved in visual texture perception: a fMRI study. Brain research. Cognitive brain research. 1998 Academic Article GET IT
Times cited: 37
Robust temporal coding of contrast by V1 neurons for transient but not for steady-state stimuli. The Journal of neuroscience : the official journal of the Society for Neuroscience. 1998 Academic Article GET IT
Times cited: 82
Spatial phase and the temporal structure of the response to gratings in V1. Journal of neurophysiology. 1998 Academic Article GET IT
Times cited: 36
Chromatic and luminance interactions in spatial contrast signals. Visual neuroscience. 1998 Academic Article GET IT
Times cited: 8
PET reveals occipitotemporal pathway activation during elementary form perception in humans. Visual neuroscience. 1998 Academic Article GET IT
Times cited: 45
Sensory coding in cortical neurons. Recent results and speculations. Annals of the New York Academy of Sciences. 1997 Academic Article GET IT
Times cited: 21
Dynamic shifts of the contrast-response function. Visual neuroscience. 1997 Academic Article GET IT
Times cited: 18
Nature and precision of temporal coding in visual cortex: a metric-space analysis. Journal of neurophysiology. 1996 Academic Article GET IT
Times cited: 453
Contrast sensitivity and spatial frequency response of primate cortical neurons in and around the cytochrome oxidase blobs. Vision research. 1995 Academic Article GET IT
Times cited: 87
Population encoding of spatial frequency, orientation, and color in macaque V1. Journal of neurophysiology. 1994 Academic Article GET IT
Times cited: 80
Striate cortex extracts higher-order spatial correlations from visual textures. Proceedings of the National Academy of Sciences of the United States of America. 1994 Academic Article GET IT
Times cited: 52
Response variability in retinal ganglion cells of primates. Proceedings of the National Academy of Sciences of the United States of America. 1993 Academic Article GET IT
Times cited: 102
Circadian rhythms in Limulus photoreceptors. II. Quantum bumps. The Journal of general physiology. 1990 Academic Article GET IT
Times cited: 21
Light adaptation in the primate retina: analysis of changes in gain and dynamics of monkey retinal ganglion cells. Visual neuroscience. 1990 Academic Article GET IT
Times cited: 163
Background light and the contrast gain of primate P and M retinal ganglion cells. Proceedings of the National Academy of Sciences of the United States of America. 1988 Academic Article GET IT
Times cited: 233
Color and luminance contrast as tools for probing the primate retina. Neuroscience research. Supplement : the official journal of the Japan Neuroscience Society. 1988 Academic Article GET IT
Times cited: 17
Contrast affects the transmission of visual information through the mammalian lateral geniculate nucleus. The Journal of physiology. 1987 Academic Article GET IT
Times cited: 147

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Research

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Funding awarded

Role of fixational eye movements and saccades in processing spatial information in V1-V2-V4 networks awarded by National Eye Institute/NIH/DHHS Principal Investigator 2022 - 2026

Central thalamic deep brain stimulation to regulate arousal and cognition awarded by National Institute of Neurological Disorders & Stroke Co-Investigator 2020 - 2024

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Background

education and training

Ph.D., The Rockefeller University 1988

Contact

full name

Keith P. Purpura

primary email

kpurpura@med.cornell.edu

VIVO Weill Cornell Medical College

Keith P. Purpura Associate Professor of Neuroscience

Publications

selected publications

Research

Funding awarded

Background

education and training

Contact

full name

primary email

Phone

Publications

selected publications

Research

Funding awarded

Background

education and training

Contact

full name

primary email