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J Comput Neurosci (2009) 27:3754 DOI 10.1007/s10827-008-0125-3

Summary: J Comput Neurosci (2009) 27:3754
DOI 10.1007/s10827-008-0125-3
Balance between noise and adaptation in competition
models of perceptual bistability
Asya Shpiro Ruben Moreno-Bote
Nava Rubin John Rinzel
Received: 9 June 2008 / Revised: 23 October 2008 / Accepted: 4 November 2008 / Published online: 6 January 2009
Springer Science + Business Media, LLC 2008
Abstract Perceptual bistability occurs when a physical
stimulus gives rise to two distinct interpretations that
alternate irregularly. Noise and adaptation processes
are two possible mechanisms for switching in neuronal
competition models that describe the alternating be-
haviors. Either of these processes, if strong enough,
could alone cause the alternations in dominance. We
examined their relative role in producing alternations
by studying models where by smoothly varying the
parameters, one can change the rhythmogenesis mech-
anism from being adaptation-driven to noise-driven. In
consideration of the experimental constraints on the


Source: Andrzejak, Ralph Gregor - Departament de Tecnologia, Universitat Pompeu Fabra


Collections: Computer Technologies and Information Sciences