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Title: Bases of a pre-attentional mechanism by means of presynaptic inhibition in the lateral geniculate nucleus
Authors: Moreno-Diaz, Roberto 
Quesada-Arencibia, A. 
Aleman-Flores, Miguel 
UNESCO Clasification: 120304 Inteligencia artificial
220990 Tratamiento digital. Imágenes
Issue Date: 2000
Conference: Medical Imaging 2000 Conference 
Medical Imaging 2000: Image Perception and Performance 
Abstract: Presynaptic Inhibition (PI) basically consists of the strong suppression of a neuron's response before the stimulus reaches the synaptic terminals mediated by a second, inhibitory, neuron. It has a long lasting effect, greatly potentiated by the action of anaesthetics, that has been observed in motorneurons and in several other places of nervous systems, mainly in sensory processing. In this paper we will focus on several different ways of modelling the effect of Presynaptic Inhibition(PI) in the visual pathway as well as the different artificial counterparts derived from such modelling, mainly in two directions: the possibility of computing invariant representations against general changes in illumination of the input image impinging the retina (which is equivalent to a low-level non linear information processing filter) and the role of PI as selector of sets of stimulae that have to be derived to higher brain areas, which, in turn, is equivalent to a "higher-level filter" of information, in the sense of "filtering" the possible semantic content of the information that is allowed to reach later stages of processing.
ISBN: 0-8194-3598-8
ISSN: 0277-786X
DOI: 10.1117/12.383122
Source: Proceedings of SPIE - The International Society for Optical Engineering [ISSN 0277-786X], v. 3981, p. 290-297
Appears in Collections:Actas de congresos
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