Visual Latencies, Masking and Synchronisation

This line of research has focused on the speed of activation propagation in a hierarchical simplified model of
the visual system. Neurons acted as coincidence detectors with and internal memory that keeps them firing
once a coincidence has been detected. Feedback from the next layers is used to reset its input layer once
a coincidence has been detected. With Poisson spike trains as input, coincidences occur at random
times and activation propagation becomes stochastic.

This model reproduces many features of the visual system such as latencies, backward masking and sychronization.
The theoretical work underlying the results in the papers hereafter was completed in 1994 but is still unpublished...

Start with the two papers published in 1994.


"The neuronal computation time" (gif scan PDF 732K)
Bugmann, G. (1992)
In: Alexander, I. and Taylor, J.G. (ed) "Artificial Neural Networks II", Elsevier, Proc. of ICANN'92, Brighton, UK, p. 861-864.

"A model for latencies in the visual system" ( 96K)  (pdf 57K)
Bugmann, G. and Taylor J.G. (1993)
in proc. 3rd Conf. on Artificial Neural Networks (ICANN'93, Amsterdam), Gielen S. and Kappen B. (eds), p.165-168.

 "Role of short-term memory in visual information propagation" (ps.ZIP 61K)  (PDF 69K)
Bugmann, G. and Taylor J.G. (1994)
Extended Abstract Book of Int. Symp. on Dynamics of Neural Processing, Washington, 132-136.

"A top-down model for neuronal synchronization" (PDF 59K)
Bugmann, G. and Taylor J.G. (1994)
Research Report NRG-94-02, School of Computing, University of Plymouth, Plymouth PL4 8AA, UK.

"Modelling visual latencies, masking and synchronization" (ps.ZIP 7K) (PDF 7K)
Bugmann G. and Taylor J.G. (1995)
Brain Research Association Abstracts, 12, p. 68.

"Binding by Synchronisation: A Task Dependence Hypothesis" (ps.ZIP 13K) (PDF 17K)
Bugmann G. (1997)
Brain and Behaviour Sciences, 20, pp. 685-686.

 "A Model of Visual Backward Masking" (PDF118KB)
Bugmann G., and  Taylor J.G. (2005) 
Biosystems, 79, 151-158.

Guido Bugmann, 18 August 2005