Sensory population decoding for visually-guided movements
| Autor: | Kris S. Chaisanguanthum, Stephen G. Lisberger, Sonja S. Hohl |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Male
genetic structures Eye Movements Motion Perception Action Potentials 0302 clinical medicine Models Psychology Visual Cortex Neurons 0303 health sciences education.field_of_study General Neuroscience medicine.anatomical_structure Neurological Cognitive Sciences Smooth Decoding methods Neural decoding Neuroscience(all) Clinical Trials and Supportive Activities Population Models Neurological Sensory system Smooth pursuit Article 03 medical and health sciences Clinical Research medicine Reaction Time Animals Motion perception education Eye Disease and Disorders of Vision 030304 developmental biology Neurology & Neurosurgery business.industry Neurosciences Eye movement Pattern recognition Macaca mulatta Pursuit Smooth Visual cortex Pursuit Artificial intelligence business Neuroscience 030217 neurology & neurosurgery Photic Stimulation |
| Zdroj: | Neuron, vol 79, iss 1 |
| Popis: | SummaryWe have used a new approach to study the neural decoding function that converts the population response in extrastriate area MT into estimates of target motion to drive smooth pursuit eye movement. Experiments reveal significant trial-by-trial correlations between the responses of MT neurons and the initiation of pursuit. The preponderance of significant correlations and the relatively low reduction in noise between MT and the behavioral output support the hypothesis of a sensory origin for at least some of the trial-by-trial variation in pursuit initiation. The finding of mainly positive MT-pursuit correlations, whether the target speed is faster or slower than the neuron’s preferred speed, places strong constraints on the neural decoding computation. We propose that decoding is based on normalizing a weighted population vector of opponent motion responses; normalization comes from neurons uncorrelated with those used to compute the weighted population vector. |
| Databáze: | OpenAIRE |
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