Analog VLSI model of the fly elementary motion detector

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Publication Type Journal Article
School or College College of Engineering
Department Electrical & Computer Engineering
Creator Harrison, Reid R.
Other Author Koch, Christof
Title Analog VLSI model of the fly elementary motion detector
Date 1998-01-01
Description Flies are capable of rapidly detecting and integrating visual motion information in behaviorly-relevant ways. The first stage of visual motion processing in flies is a retinotopic array of functional units known as elementary motion detectors (EMDs). Several decades ago, Reichardt and colleagues developed a correlation-based model of motion detection that described the behavior of these neural circuits. We have implemented a variant of this model in a 2.0-μm analog CMOS VLSI process. The result is a low-power, continuous-time analog circuit with integrated photoreceptors that responds to motion in real time. The responses of the circuit to drifting sinusoidal gratings qualitatively resemble the temporal frequency response, spatial frequency response, and direction selectivity of motion-sensitive neurons observed in insects. In addition to its possible engineering applications, the circuit could potentially be used as a building block for constructing hardware models of higher-level insect motion integration.
Type Text
Publisher MIT Press
Journal Title Neural Information Processing Systems
First Page 880
Last Page 6
Language eng
Bibliographic Citation Harrison, R. R., & Koch, C. (1998). Analog VLSI model of the fly elementary motion detector. Advances in Neural Information Processing Systems (NIPS), 880-6.
Rights Management (c) MIT Press
Format Medium application/pdf
Format Extent 69,376 bytes
Identifier ir-main,13984
ARK ark:/87278/s6rj52k6
Setname ir_uspace
Date Created 2012-06-13
Date Modified 2021-05-06
ID 702605
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