A neural cocktail-party processor

  title={A neural cocktail-party processor},
  author={Christoph von der Malsburg and Wolfgang Schneider},
  journal={Biological Cybernetics},
Sensory segmentation is an outstanding unsolved problem of theoretical, practical and technical importance. The basic idea of a solution is described in the form of a model. The response of “neurons” within the sensory field is temporally unstable. Segmentation is expressed by synchronization within segments and desynchronization between segments. Correlations are generated by an autonomous pattern formation process. Neuronal coupling is the result both of peripheral evidence (similarity of… 

Sensory segmentation with coupled neural oscillators

A model of sensory segmentation that is based on the generation and processing of temporal tags in the form of oscillations, as suggested by the Dynamic Link Architecture is presented, which produces signal correlation within segments and anticorrelation between segments.

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A network of oscillatory amplitude-phase units connected in two layers that can exhibit synchronized oscillations that is unsupervised and based on a Hebbian update, and extended to address the problem of translational invariance.

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Binding and segmentation of multiple objects through neural oscillators inhibited by contour information

Simulations performed in a 50×50 neural grid with 21 different visual scenes with random initial conditions demonstrate that the network can correctly segment objects in almost 100% of cases using a single set of parameters, i.e., without the need to adjust parameters from one visual scene to the next.

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Responses of visual cortical neurons in early processing stages can be modulated by stimuli presented outside the classical receptive field. The function of these context effects is still not

A Neural Model for the Visual Attention Phenomena

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It is suggested that the scheme of a synaptic pattern may be more adapted than the classical cell-assembly notion for explaining cognitive abilities such as generalization and categorization, which pertain to the notion of invariance.

A feature-integration theory of attention

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The basic structure of a neuronal circuitry possibly underlying the detection of discontinuities in the optical flow by the visual system of the houseflyMusca is proposed and detailed predictions of the model circuitry are compared with old and new behavioural experiments on Musca.

Auditory streaming and the building of timbre.

These experiments demonstrated that fusion and sequential organization of streams are carried out using two sorts of information which compete to determine the best perceptual description of the input.

Spectral Fusion and the Creation of Auditory Images

The auditory system participates in the forming of images evoked by acoustic phenomena in the world around us. An important aspect of the imaging process is the distinguishing of different sound

Function of the thalamic reticular complex: the searchlight hypothesis.

  • F. Crick
  • Biology
    Proceedings of the National Academy of Sciences of the United States of America
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It is suggested that in the brain the internal attentional searchlight, proposed by Treisman and others, is controlled by the reticular complex of the thalamus (including the closely related

Auditory continuity and amplitude edges.

It was found that brief changes in the amplitude of the tones, introduced before and after the noise burst, reduced the illusion of continuity; this reduction was greater when the amplitude decreased rather than increased before the noise.

Nervous Structures with Dynamical Links

Connectivity patterns (instead of mere activity distributions) are argued to be the natural objects of fast brain dynamics. They are to be understood as a basis for self-organization. Natural

Signal Processing for a Cocktail Party Effect

A binaural listener has the ability to concentrate on speech from a particular location while suppressing speech from other locations (binaural “cocktail party” effect). In some communication

Spatial properties of an EEG event in the olfactory bulb and cortex.

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    Electroencephalography and clinical neurophysiology
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