Physics of Psychophysics: Stevens and Weber-Fechner laws are transfer functions of excitable media

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dc.creatorCopelli, Mauro
dc.creatorRoque, Antonio C.
dc.creatorOliveira, Rodrigo F.
dc.creatorKinouchi, Osame
dc.date2001-12-20
dc.date2004-10-19
dc.date.accessioned2026-07-07T06:25:03Z
dc.date.available2026-07-07T06:25:03Z
dc.descriptionSensory arrays made of coupled excitable elements can improve both their input sensitivity and dynamic range due to collective non-linear wave properties. This mechanism is studied in a neural network of electrically coupled (e.g. via gap junctions) elements subject to a Poisson signal process. The network response interpolates between a Weber-Fechner logarithmic law and a Stevens power law depending on the relative refractory period of the cell. Therefore, these non-linear transformations of the input level could be performed in the sensory periphery simply due to a basic property: the transfer function of excitable media.
dc.description4 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0112395
dc.identifierhttp://arxiv.org/abs/cond-mat/0112395
dc.identifierPhysical Review E, 65, 060901 (2002)
dc.identifierdoi:10.1103/PhysRevE.65.060901
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/96743
dc.subjectDisordered Systems and Neural Networks
dc.subjectStatistical Mechanics
dc.subjectCellular Automata and Lattice Gases
dc.subjectBiological Physics
dc.subjectNeurons and Cognition
dc.titlePhysics of Psychophysics: Stevens and Weber-Fechner laws are transfer functions of excitable media
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