Brightness Induction: Rate Enhancement and Neuronal Synchronization as Complementary Codes

@article{Biederlack2006BrightnessIR,
  title={Brightness Induction: Rate Enhancement and Neuronal Synchronization as Complementary Codes},
  author={Julia Biederlack and Miguel Castelo‐Branco and Sergio Neuenschwander and Diek W. Wheeler and Wolf Singer and Danko Nikolic},
  journal={Neuron},
  year={2006},
  volume={52},
  pages={1073-1083}
}

Figures from this paper

Motion contrast in primary visual cortex: a direct comparison of single neuron and population encoding
TLDR
It is argued that motion contrast can be reflected in complementary and superimposed neuronal signatures that can represent different surround features in independent neuronal populations.
A Neurodynamical Model of Brightness Induction in V1
TLDR
This work suggests that intra-cortical interactions in V1 could, at least partially, explain brightness induction effects and reveals how a common general architecture may account for several different fundamental processes, such as visual saliency and brightness induction, which emerge early in the visual processing pathway.
Cortical Synchrony as a Mechanism of Collinear Facilitation and Suppression in Early Visual Cortex
TLDR
A model of oscillators which represent three neuronal populations in visual cortex with distinct receptive fields reflecting the target and two flankers, respectively, and whose connectivity is determined by the collinearity of the presented Gabor stimuli confirms that neuronal synchrony can indeed explain knownCollinear facilitation and suppression effects for attended and unattended stimuli.
Relationship between spontaneous and evoked spike-time correlations in primate visual cortex.
TLDR
Recordings from primary visual cortex of the anesthetized and paralyzed prosimian bush baby suggest that spike-time correlations present in evoked activity are generated by mechanisms common to those operating in spontaneous conditions.
Local differences in neuronal activation level decorrelate spatially coherent global fluctuations in gamma rhythms
TLDR
To identify the mechanism, a statistical technique was developed to isolate the rhythmic component of the spiking process and found that above results are explained by an activation-dependent increase in neuronal sensitivity to gamma-rhythmic input.
Predictive coding of natural images by V1 firing rates and rhythmic synchronization
Increased Surround Modulation of Perceived Contrast in the Elderly
  • R. Karas, A. McKendrick
  • Medicine
    Optometry and vision science : official publication of the American Academy of Optometry
  • 2011
TLDR
The findings suggest that age-related differences are likely in the appearance of objects in natural environments where background contrast varies, and normal ageing increases perceived contrast surround suppression, irrespective of information at the stimulus border between center and surround.
Synchrony Makes Neurons Fire in Sequence, and Stimulus Properties Determine Who Is Ahead
TLDR
It is shown that, in the cat visual cortex, the pairwise delays between neurons form a preferred order of spiking, called firing sequence, which spans up to ∼15 ms and is referenced not to external events but to the internal cortical activity (e.g., beta/gamma oscillations).
...
...

References

SHOWING 1-10 OF 43 REFERENCES
Neural Correlates of Perceived Brightness in the Retina, Lateral Geniculate Nucleus, and Striate Cortex
TLDR
It is suggested that brightness information is explicitly represented in the responses of neurons in striate cortex as part of a neural representation of object surfaces.
Synchronization of oscillatory responses in visual cortex correlates with perception in interocular rivalry.
TLDR
It is suggested that at early stages of visual processing the degree of synchronicity rather than the amplitude of responses determines which signals are perceived and control behavioral responses.
Stimulus-specific neuronal oscillations in orientation columns of cat visual cortex.
  • C. Gray, W. Singer
  • Biology
    Proceedings of the National Academy of Sciences of the United States of America
  • 1989
TLDR
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.
Oscillatory responses in cat visual cortex exhibit inter-columnar synchronization which reflects global stimulus properties
TLDR
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.
Spatial phase sensitivity of V1 neurons in alert monkey.
TLDR
Results from two monkeys show that most of the V1 neurons with suppressive ERF are sensitive to the RSP, and the degree of sensitivity is strongly dependent on the strength of ERF suppression.
Surround modulation measured with functional MRI in the human visual cortex.
TLDR
Data from functional MRI studies demonstrating contextual modulation in the human visual cortex is presented to provide a direct demonstration of the existence of powerful and stimulus-specific surround effects in humanVisual cortex.
Length and width tuning of neurons in the cat's primary visual cortex.
TLDR
Results show that end- and side-inhibition tend to be strongest at the orientation and spatial frequency that yield maximal excitation, suggesting that inhibition is mediated by a pool of neurons.
Characteristics of surround inhibition in cat area 17
TLDR
Inhibition by orientations flanking the optimum could serve to sharpen orientation selectivity in the presence of contextual stimuli and to enhance orientational contrast; and it may play a part in orientation contrast illusions.
Neuronal responses to static texture patterns in area V1 of the alert macaque monkey.
TLDR
Responses from neurons in area V1 of the alert macaque monkey to textured patterns modeled after stimuli used in psychophysical experiments of pop- out are consistent with a possible functional role of V1 cells in the mediation of perceptual pop-out and in the segregation of texture borders.
Relation between oscillatory activity and long-range synchronization in cat visual cortex.
TLDR
The results show that when synchronization of neuronal activity occurs over distances of > 2 mm in primary visual cortex, or occurs between the two hemispheres, it is almost always associated with oscillatory firing patterns, whereas synchronization over short distances occurs also in the absence of oscillations, supporting the hypothesis that oscillatory activity can contribute to the establishment of long-range synchrony in a network of reciprocally coupled neurons.
...
...