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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:dateCreated |
1989-8-22
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pubmed:abstractText |
An inverse method is developed to investigate the oculomotor neural control signal. The oculomotor plant is modeled with a fourth-order linear homeomorphic saccadic eye movement model. Parameter estimation is performed using a conjugate gradient search method which minimizes the integral of the absolute value of the error squared between the model and the data. Derivatives are computed using band-limited differentiation (BLD) techniques and the results are compared to derivatives computed using the two-point central difference method. Using the BLD technique allows for greater flexibility in choosing a cutoff frequency, provides true low-pass filtering above the cutoff frequency, and gives more consistent results than using the two-point central difference method. The input to the oculomotor plant model is computed. The input is a cumulative force consisting of the agonist and antagonist active state tensions and their respective rate-of-change terms. The agonist force is also determined by approximating the antagonist active state tension and removing if from the cumulative input force.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:issn |
0067-8856
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
25
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
135-40
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pubmed:dateRevised |
2009-11-11
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pubmed:meshHeading |
pubmed-meshheading:2742960-Electrooculography,
pubmed-meshheading:2742960-Eye Movements,
pubmed-meshheading:2742960-Humans,
pubmed-meshheading:2742960-Models, Neurological,
pubmed-meshheading:2742960-Oculomotor Nerve,
pubmed-meshheading:2742960-Saccades,
pubmed-meshheading:2742960-Signal Processing, Computer-Assisted
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pubmed:year |
1989
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pubmed:articleTitle |
Neurosignal analysis during saccadic eye movements.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, Non-P.H.S.
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