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NROC34: Article 17 - Estimation of self-motion by optic flow processing in single visual neurons.doc

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Department
Neuroscience
Course
NROC34H3
Professor
Andrew Mason
Semester
Winter

Description
Article 17Estimation of selfmotion by optic flow processing in single visual neuronsObject detection and navigation in structured surroundingsMotionsensed by large arrays of small field mvt detectseach prefer motion in certain directionSelf motion generates optic flow fields in the eyes that depends on rotation or translation mvtsHow is optic flow processed at neuronal levelIC recordings of rdinterneurons in 3 visual neuropilGlobal structure of the resulting motion response fieldssimilar to optic flow fieldsOrganization of the VS neurongseach of these neurons specifically extracts rotatory component of the optic flow around a particular horizontal axisRetinal imageshiftsoptic flow fieldsvector fields where each vector indicates the direction and velocity of the local image shiftStructure of optic flow field depends on instantaneous selfmotionrotatorytranslator componentsOptic flowexploited for estimation of selfmotionstIn 1 stages of processing in visual sys motionanalyzed locally by elementary motion detectorsdiff kinds of selfmotoion may induce same excitation in an EMD bc l
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