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dc.contributor.authorPerrone, John A.
dc.coverage.spatialUnited Statesen_NZ
dc.date.accessioned2009-08-05T04:12:50Z
dc.date.available2009-08-05T04:12:50Z
dc.date.issued2006
dc.identifier.citationPerrone, J. A. (2006). A single mechanism can explain the speed tuning properties of MT and V1 complex neurons. The Journal of Neuroscience, 26(46), 11987-11991.en
dc.identifier.urihttps://hdl.handle.net/10289/2744
dc.description.abstractA recent study by Priebe et al., (2006) has shown that a small proportion (27%) of primate directionally selective, complex V1 neurons are tuned for the speed of image motion. In this study, I show that the weighted intersection mechanism (WIM) model, which was previously proposed to explain speed tuning in middle temporal neurons, can also explain the tuning found in complex V1 neurons. With the addition of a contrast gain mechanism, this model is able to replicate the effects of contrast on V1 speed tuning, a phenomenon that was recently discovered by Priebe et al., (2006). The WIM model simulations also indicate that V1 neuron spatiotemporal frequency response maps may be asymmetrical in shape and hence poorly characterized by the symmetrical two-dimensional Gaussian fitting function used by Priebe et al., (2006) to classify their cells. Therefore, the actual proportion of speed tuning among directional complex V1 cells may be higher than the 27% estimate suggested by these authors.en
dc.format.mimetypeapplication/pdf
dc.language.isoen
dc.publisherSociety for Neuroscienceen_NZ
dc.rightsThis article has been published in the Journal of Neuroscience. Copyright © 2006 Society for Neuroscience.en
dc.subjectspeed tuningen
dc.subjectvisual motion processingen
dc.subjectV1en
dc.subjectMTen
dc.subjectspatiotemporal frequencyen
dc.subjectcontrast sensitivityen
dc.titleA single mechanism can explain the speed tuning properties of MT and V1 complex neuronsen
dc.typeJournal Articleen
dc.identifier.doi10.1523/JNEUROSCI.4024-06.2006en
dc.relation.isPartOfThe Journal of Neuroscienceen_NZ
pubs.begin-page11987en_NZ
pubs.elements-id33722
pubs.end-page11991en_NZ
pubs.issue46en_NZ
pubs.volume26en_NZ


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