Research Topics
| Adam KohnSummaryAffiliation: Albert Einstein College of Medicine Country: USA Publications
Research Grants
| Collaborators
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Detail Information
Publications
Correlations and brain states: from electrophysiology to functional imagingAdam Kohn
Dom Purpura Department of Neuroscience, Albert Einstein College of Medicine, 1410 Pelham Parkway South, Bronx, NY 10461, USA
Curr Opin Neurobiol 19:434-8. 2009..Given the potential impact on population coding, this modulation of correlations may play an important role in sensory processing...
Visual adaptation: physiology, mechanisms, and functional benefitsAdam Kohn
Department of Neuroscience, Albert Einstein College of Medicine, Bronx, NY 10461, USA
J Neurophysiol 97:3155-64. 2007..I conclude with a brief discussion of some important open questions in the field...- Stimulus selectivity and spatial coherence of gamma components of the local field potentialXiaoxuan Jia
Dominick Purpura Department of Neuroscience, Albert Einstein College of Medicine, Bronx, New York 10461, USA
J Neurosci 31:9390-403. 2011..Our results show that there is not a single, fixed ensemble contributing to gamma and that the selectivity of gamma cannot be used to infer its spatial extent... - The influence of surround suppression on adaptation effects in primary visual cortexStephanie C Wissig
Dominick Purpura Department of Neuroscience, Albert Einstein College of Medicine, Bronx, NY, USA
J Neurophysiol 107:3370-84. 2012..Our data reveal that adaptation can have a much richer repertoire of effects on neuronal responsivity and tuning than previously considered and suggest an intimate mechanistic relationship between spatial and temporal contextual effects... 
Distinct effects of brief and prolonged adaptation on orientation tuning in primary visual cortexCarlyn A Patterson
Dominick Purpura Department of Neuroscience and Department of Ophthalmology and Visual Sciences, Albert Einstein College of Medicine, Bronx, New York 10461, USA
J Neurosci 33:532-43. 2013..Our findings show that effects do not simply scale with adaptation duration and suggest that distinct strategies exist for adjusting to moment-to-moment fluctuations in input and to more persistent visual stimuli...- No consistent relationship between gamma power and peak frequency in macaque primary visual cortexXiaoxuan Jia
Dominick Purpura Department of Neuroscience, Albert Einstein College of Medicine, Bronx, New York 10461, USA
J Neurosci 33:17-25. 2013..We propose a simple model that can account for the complex stimulus dependence we observe, and suggest that separate mechanisms determine gamma power and peak frequency... - Questioning the role of rebound firing in the cerebellumKarina Alviña
Dominick P Purpura Department of Neuroscience, Albert Einstein College of Medicine, Bronx, New York 10461, USA
Nat Neurosci 11:1256-8. 2008..We found that intact mouse or rat DCN neurons rarely showed rebound firing under physiological conditions in vitro or in vivo. These observations necessitate a critical re-evaluation of recent cerebellar models... - Visual adaptation: neural, psychological and computational aspectsColin W G Clifford
School of Psychology, University of Sydney, Sydney, NSW 2006, Australia
Vision Res 47:3125-31. 2007..Here, we discuss functional ideas about adaptation in the light of recent data and identify exciting directions for future research... - Glass pattern responses in macaque V2 neuronsMatthew A Smith
Center for Neural Science, New York University, New York, NY, USA
J Vis 7:5. 2007..It appears that the coding of the more complicated global structure in Glass patterns takes place further downstream in the visual system... - The role of correlations in direction and contrast coding in the primary visual cortexFernando Montani
Department of Bioengineering, Imperial College London, South Kensington, London SW7 2AZ, United Kingdom
J Neurosci 27:2338-48. 2007.... - Stimulus dependence of neuronal correlation in primary visual cortex of the macaqueAdam Kohn
Center for Neural Science, New York University, New York, New York 10003, USA
J Neurosci 25:3661-73. 2005.... - Adaptation changes the direction tuning of macaque MT neuronsAdam Kohn
Center for Neural Science, New York University, 4 Washington Place, Room 809, New York, New York 10003, USA
Nat Neurosci 7:764-72. 2004..This previously unknown effect of adaptation is consistent with perceptual aftereffects and indicates that different cortical regions may adjust to constant sensory input in distinct ways... - Neuronal adaptation to visual motion in area MT of the macaqueAdam Kohn
Howard Hughes Medical Institute, New York University, New York, NY 10003, USA
Neuron 39:681-91. 2003..While both preferred and null adaptation alter MT responses, these effects probably do not occur in MT neurons but are likely to reflect adaptation-induced changes in contrast gain earlier in the visual pathway... - Comparison of recordings from microelectrode arrays and single electrodes in the visual cortexRyan C Kelly
Center for the Neural Basis of Cognition, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
J Neurosci 27:261-4. 2007 - Measuring spike pattern reliability with the Lempel-Ziv-distanceMarkus Christen
Institute of Neuroinformatics, University ETH Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
J Neurosci Methods 156:342-50. 2006..For both applications, we show how the LZ-distance gives additional insights, as it adds a new perspective on the problem of firing reliability determination and allows neuron classifications in cases, where other distance measures fail... - Sensory cortical dynamicsAdam Kohn
Curriculum in Neurobiology and Department of Cell and Molecular Physiology, University of North Carolina, 155 Medical Research, Chapel Hill, NC 27599 7545, USA
Behav Brain Res 135:119-26. 2002..Candidate cellular mechanisms and the potential benefits of such stimulus-driven, rapid, and fully reversible sensory cortical dynamics are discussed...
Research Grants
- Adaptation to visual motionAdam Kohn; Fiscal Year: 2010..g. stroke) or peripheral (e.g. limb amputation) injury and designing sensory devices (e.g. artificial cochlea or visual aids) that extract or insert signals into the brain. ..