Presentation 1997/3/17
Delay control mechanism in the cortex : A physiological plausible basis for attention
Masahide Nomura,
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Abstract(in English) A wide variety deviations of illusory line motion are explained with a gradient model, that assumes the signal propergations from sensors to motion detectors are speeded by attention potential. However, physiological basis of the psychological model has been not clear. The paper proposed a physiologically plausible model for cortical neural network to control cell response delay by attention. The model incorporates both of D. Heeger's feedback model for response normalization and positive feedback amplification suggested with histological evidences. Adding to GABA-B type inhibition, GABA-A type inhibition to deep layer excitatory cells is assumed with disinhibition mechanism for voluntary attention effect. The model network is consistent with canonical microcircuit proposed by R.J. Douglas. The model incorporated with two-stage motion energy model brings a physiological plausible understanding of the illusory line motion perception.
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Keyword(in English) neural network / normalization / canonical microcircuit / two-stage motion energy model / delay control
Paper # NC96-145
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Committee NC
Conference Date 1997/3/17(1days)
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Registration To Neurocomputing (NC)
Language JPN
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Title (in English) Delay control mechanism in the cortex : A physiological plausible basis for attention
Sub Title (in English)
Keyword(1) neural network
Keyword(2) normalization
Keyword(3) canonical microcircuit
Keyword(4) two-stage motion energy model
Keyword(5) delay control
1st Author's Name Masahide Nomura
1st Author's Affiliation NEC Fundamental Res. Labs. Exploratory Res. Lab.()
Date 1997/3/17
Paper # NC96-145
Volume (vol) vol.96
Number (no) 583
Page pp.pp.-
#Pages 8
Date of Issue