Presentation 1999/11/26
A feedforward model of the brainstem saccade generator
Masahiko Fujita,
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Abstract(in English) Models of local feedback system are well-known with the brainstem saccade generator, but they have at least two difficulties. In the present model, the activity of the superior collliculus (SC) during a saccade, when summed up temporally and spatially, holds a constant value, thus producing a correct size of the amplitude. The direction of a saccade could be encoded by the synaptic efficacy of axon terminals from the SC as in other models, but here we present a new hypothesis of population coding in the burst neuron (BN) pools. Without local feedback, the output saturation of the BNs which explains the main sequence of the saccade, does not contradict the stretch phenomena owing to the population coding of the BNs.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) supeiror colliculus / burst neuron / population coding / neural integrator / pause neuron / main sequence
Paper # NC99-54
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Committee NC
Conference Date 1999/11/26(1days)
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Registration To Neurocomputing (NC)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A feedforward model of the brainstem saccade generator
Sub Title (in English)
Keyword(1) supeiror colliculus
Keyword(2) burst neuron
Keyword(3) population coding
Keyword(4) neural integrator
Keyword(5) pause neuron
Keyword(6) main sequence
1st Author's Name Masahiko Fujita
1st Author's Affiliation Hosei University, Fac. of Eng., Dept. of Ind. & Sys. Eng. Human NeuroSystem lab.:CREST()
Date 1999/11/26
Paper # NC99-54
Volume (vol) vol.99
Number (no) 473
Page pp.pp.-
#Pages 5
Date of Issue