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Recent "electrophysiology" articles

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Bookmarks matching tag electrophysiology
 
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Cardiac Electrophysiology: From Cell to Bedside
Douglas Zipes and Jose Jalife
 
Visual Modulation of Neurons in Auditory Cortex
Christoph Kayser, Christopher I Petkov, and Nikos K Logothetis
Cerebral Cortex 18 (7), (06 Jan 2008)
 
The coordinated mapping of visual space and response features in visual cortex.
The Coordinated Mapping of Visual Space and Response Features in Visual Cortex
Neuron 47 (2), 267 (2005)
Whether general principles can explain the layouts of cortical maps remains unresolved. In primary visual cortex of ferret, the relationships between the maps of visual space and response features are predicted by a "dimension-reduction" model. The representation of visual space is anisotropic, with the elevation and azimuth axes having different magnification. This anisotropy is reflected in the orientation, ocular dominance, and spatial frequency domains, which are elongated such that their directions of rapid change, or high-gradient axes, are orthogonal to the high-gradient axis of the visual map. The feature maps are also strongly interdependent-their high-gradient regions avoid one another and intersect orthogonally where essential, so that overlap is minimized. Our results demonstrate a clear influence of the visual map on each feature map. In turn, the local representation of visual space is smooth, as predicted when many features are mapped within a cortical area.
 
Foci of orientation plasticity in visual cortex.
Valentin Dragoi, Casto Rivadulla, and Mriganka Sur
Nature 411 (6833), 80-6 (03 May 2001)
Cortical areas are generally assumed to be uniform in their capacity for adaptive changes or plasticity. Here we demonstrate, however, that neurons in the cat striate cortex (V1) show pronounced adaptation-induced short-term plasticity of orientation tuning primarily at specific foci. V1 neurons are clustered according to their orientation preference in iso-orientation domains that converge at singularities or pinwheel centres. Although neurons in pinwheel centres have similar orientation tuning and responses to those in iso-orientation domains, we find that they differ markedly in their capacity for adaptive changes. Adaptation with an oriented drifting grating stimulus alters responses of neurons located at and near pinwheel centres to a broad range of orientations, causing repulsive shifts in orientation preference and changes in response magnitude. In contrast, neurons located in iso-orientation domains show minimal changes in their tuning properties after adaptation. The anisotropy of adaptation-induced orientation plasticity is probably mediated by inhomogeneities in local intracortical interactions that are overlaid on the map of orientation preference in V1.
 
Expanded CUG repeats trigger aberrant splicing of ClC-1 chloride channel pre-mRNA and hyperexcitability of skeletal muscle in myotonic dystrophy
Ami Mankodi et al.
Molecular cell 10 (1), 35-44 (Jul 2002)
DA - 20020801 IS - 1097-2765 (Print) LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S RN - 0 (CLC-1 channel) RN - 0 (Chloride Channels) RN - 0 (RNA Precursors) RN - 0 (RNA, Messenger) SB - IM
 
Enhanced Response of Neurons in Rat Somatosensory Cortex to Stimuli Containing Temporal Noise
Armin Lak, Ehsan Arabzadeh, and Mathew Diamond
Cerebral Cortex 18 (5), (01 May 2008)
 
Spatio temporal Dynamics of Face Recognition
Emmanuel Barbeau et al.
Cerebral Cortex 18 (5), 997 (01 May 2008)
 
Dynamic Moment Analysis of the Extracellular Electric Field of a Biologically Realistic Spiking Neuron
Joshua Milstein and Christof Koch
Neural Computation, 080403130219708 (2008)
Posted by btel to CSD LFP electrophysiology toread on Mon Apr 07 2008 at 12:49 UTC | info | related
 
Specialized color modules in macaque extrastriate cortex.
Bevil R Conway, Sebastian Moeller, and Doris Y Tsao
Neuron 56 (3), 560-73 (08 Nov 2007)
 
Clathrin Dependence of Synaptic-Vesicle Formation at the Drosophila Neuromuscular Junction.
Heather Heerssen, Richard D Fetter, and Graeme W Davis
Current biology : CB, (18 Mar 2008)

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