Position and velocity estimation in the visual cortex

Bijoy K. Ghosh, Zoran Nenadic

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


Early extracellular recordings from turtle visual cortex have shown the existence of a wave of depolarizing activity as a response to a localized light flashes presented in the turtle visual field. Experiments using voltage sensitive dye techniques have supported this observation. The dynamics of the cortical wave might be responsible for encoding the parameters of an unknown input stimulus. We develop a data compression algorithm for representing the cortical response elicited by a family of stimuli. To process image data we use the principal components analysis method and we provide a consistent way of choosing the number of principal modes necessary for effective data representation.

Original languageEnglish
Title of host publicationIFAC Proceedings Volumes (IFAC-PapersOnline)
EditorsGabriel Ferrate, Eduardo F. Camacho, Luis Basanez, Juan. A. de la Puente
PublisherIFAC Secretariat
Number of pages6
ISBN (Print)9783902661746
StatePublished - 2002
Event15th World Congress of the International Federation of Automatic Control, 2002 - Barcelona, Spain
Duration: Jul 21 2002Jul 26 2002

Publication series

NameIFAC Proceedings Volumes (IFAC-PapersOnline)
ISSN (Print)1474-6670


Conference15th World Congress of the International Federation of Automatic Control, 2002


  • Detection and estimation
  • KL decomposition
  • Turtle visual cortex

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