• Publications
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Principles of visual motion detection
TLDR
We show that the mechanisms underlying biological motion detection can be attributed to only a few, essentially equivalent computational principles. Expand
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Computational structure of a biological motion-detection system as revealed by local detector analysis in the fly's nervous system.
The computations performed by individual movement detectors are analyzed by intracellularly recording from an identified direction-selective motion-sensitive interneuron in the fly's brain and byExpand
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Transient and steady-state response properties of movement detectors.
The transient and steady-state responses of movement detectors are studied at various pattern contrasts (i) by intracellularly recording from an identified movement-sensitive interneuron in the fly'sExpand
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Binocular contributions to optic flow processing in the fly visual system.
Integrating binocular motion information tunes wide-field direction-selective neurons in the fly optic lobe to respond preferentially to specific optic flow fields. This is shown by measuring theExpand
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Neural Mechanisms of Visual Course Control in Insects
TLDR
Visual orientation and course-stabilization of flying insects rely essentially on the evaluation of the retinal motion patterns perceived by the animals during flight. Expand
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Mechanisms of dendritic integration underlying gain control in fly motion-sensitive interneurons
In the compensatory optomotor response of the fly the interesting phenomenon of gain control has been observed by Reichardt and colleagues (Reichardt et al., 1983): The amplitude of the responseExpand
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On the neuronal basis of figure-ground discrimination by relative motion in the visual system of the fly
  • M. Egelhaaf
  • Computer Science
  • Biological Cybernetics
  • 1 June 1985
TLDR
A new class of large-field tangential neurones (Figure Detection (FD-) cells) has been found and analysed in the lobula plate, the posterior part of the third visual ganglion, of the fly by combined extra-and intracellular recording as well as Lucifer Yellow injection. Expand
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Speed tuning in elementary motion detectors of the correlation type
TLDR
We show that other versions of the correlation model, which consists of a single unidirectional motion detector with opposite preferred directions, produces a response which varies not only with the velocity of the image, but also with its spatial structure and contrast. Expand
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On the neuronal basis of figure-ground discrimination by relative motion in the visual system of the fly
A fly can discriminate an object (“figure”) from its background on the basis of motion information alone. This information processing task has been analysed, so far, mainly in behavioural studies butExpand
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Chasing a dummy target: smooth pursuit and velocity control in male blowflies
Male blowflies chase and catch other flies in fast acrobatic flights. To unravel the underlying control system, we presented a black moving sphere instead of a real fly as a pursuit target. ByExpand
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