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Oscillatory responses in cat visual cortex exhibit inter-columnar synchronization which reflects global stimulus properties
It is demonstrated here that neurons in spatially separate columns can synchronize their oscillatory responses, which has, on average, no phase difference, depends on the spatial separation and the orientation preference of the cells and is influenced by global stimulus properties. Expand
Visual feature integration and the temporal correlation hypothesis.
The mammalian visual system is endowed with a nearly infinite capacity for the recognition of patterns and objects. To have acquired this capability the visual system must have solved what is a… Expand
Stimulus-specific neuronal oscillations in orientation columns of cat visual cortex.
The results demonstrate that local neuronal populations in the visual cortex engage in stimulus-specific synchronous oscillations resulting from an intracortical mechanism, and may provide a general mechanism by which activity patterns in spatially separate regions of the cortex are temporally coordinated. Expand
Chattering Cells: Superficial Pyramidal Neurons Contributing to the Generation of Synchronous Oscillations in the Visual Cortex
Chattering cells located in the superficial layers of the cortex intrinsically generate 20- to 70-hertz repetitive burst firing in response to suprathreshold depolarizing current injection, and exhibit pronounced oscillations in membrane potential during visual stimulation that are largely absent during periods of spontaneous activity. Expand
Tetrodes markedly improve the reliability and yield of multiple single-unit isolation from multi-unit recordings in cat striate cortex
- C. Gray, P. Maldonado, Mathew R Wilson, B. McNaughton
- Physics, Medicine
- Journal of Neuroscience Methods
- 1 December 1995
Tetrode recording currently provides the best and most reliable method for the isolation of multiple single units in the neocortex using a single probe. Expand
Electrophysiological classes of cat primary visual cortical neurons in vivo as revealed by quantitative analyses.
- L. Nowak, R. Azouz, Maria V. Sanchez-Vives, C. Gray, D. McCormick
- Biology, Medicine
- Journal of neurophysiology
- 1 March 2003
The results indicate that firing properties do not form a continuum and that cortical neurons are members of distinct electrophysiological classes and subclasses. Expand
Dynamic spike threshold reveals a mechanism for synaptic coincidence detection in cortical neurons in vivo.
The basic mechanism responsible for action potential generation also enhances the sensitivity of cortical neurons to coincident synaptic inputs, and voltage-gated Na(+) and K(+) conductances endow cortical neurons with an enhanced sensitivity to rapid depolarizations that arise from synchronous excitatory synaptic inputs. Expand
Cellular Mechanisms Contributing to Response Variability of Cortical Neurons In Vivo
Cortical neurons recorded in vivo exhibit highly variable responses to the repeated presentation of the same stimulus. To further understand the cellular mechanisms underlying this phenomenon, we… Expand
Stimulus‐Dependent Neuronal Oscillations in Cat Visual Cortex: Inter‐Columnar Interaction as Determined by Cross‐Correlation Analysis
- A. Engel, P. König, C. Gray, W. Singer
- Physics, Medicine
- The European journal of neuroscience
- 1 July 1990
The results demonstrate that oscillatory responses at separate cortical sites can transiently synchronize and are suggested that this synchronization provides a mechanism for the formation of neuronal assemblies in the visual cortex. Expand
Content-Specific Fronto-Parietal Synchronization During Visual Working Memory
Results indicate that short-term memories are represented by large-scale patterns of synchronized activity across the fronto-parietal network, which are prevalent among stimulus-selective neurons and are governed by influences arising in parietal cortex. Expand