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Olfactory networks: from sensation to perception
Current Opinion in Genetics & Development, 2011Olfactory networks, comprised of sensory neurons and interneurons, detect and process changes in the chemical environment to drive animal behavior. Recent studies combining genetics with behavioral analyses and imaging in worms, flies and mice have revealed new insights into the mechanisms of olfaction. In this discussion, we focus on three interesting
Sarah G, Leinwand +1 more
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Distorted olfactory perception: A systematic review
Acta Oto-Laryngologica, 2012The sense of smell provides people with valuable input from the chemical environment around them. The human sense of smell generally fails in three ways; one is an intensity reduction and the other two are the quality of changes. Smell disorders can be classified into central or peripheral depending on their origin.
Seok-Chan, Hong +3 more
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Modulation of Olfactory Perception
2016In “Modulation of olfactory perception”, Keller reviews the flow of information from other parts of the mind toward olfaction. There is substantial input into the olfactory system from both cognitive processes, a phenomenon known as cognitive penetration of perception, and from other perceptual systems.
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Olfactory perception, cognition, and dysfunction in humans
WIREs Cognitive Science, 2013AbstractThe main functions of olfaction relate to finding food, avoiding predators and disease, and social communication. Its role in detecting food has resulted in a unique dual mode sensory system. Environmental odorants are ‘smelled’ via the external nostrils, while volatile chemicals in food—detected by the same receptors—arrive via the nasopharynx,
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The Effect of Verbal Context on Olfactory Perception.
Journal of Experimental Psychology: General, 2003Three experiments were conducted to examine how verbal context and sensory stimulation interact to influence odor hedonic perception. Eight common odors were presented in their natural and synthetic forms, and verbal labels designating name and source (natural, synthetic) information were either explicitly given, self-generated, falsely provided, or ...
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PERCEPTION OF ODORS BY A NONLINEAR MODEL OF THE OLFACTORY BULB
International Journal of Neural Systems, 2001The behavior of the olfactory bulb is modeled as a network of interconnected cells with nonlinear dynamics. External inputs from sensory neurons are introduced as perturbations to subsets of cells within the network. We describe the attractors of the system and show how they can be classified and ordered according to their varying degrees of symmetry ...
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The molecular biology of olfactory perception
International Journal of Food Science and Technology, 1998Abstract This review discusses the anatomy of human odorant reception, with particular reference to the seven-helical transmembrane-protein superfamily of olfactory receptors, the concept of a novel multigene olfactory-receptor family, the location of the olfactory-receptor genes in the human genome and the characterization of the ...
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Early olfactory computations and perception
The FASEB Journal, 2007In this talk I will present an overview of the olfactory bulb network from a computational point of view. I will discuss the functionality of the different types of neurons, the networks they form with respect to computing stable, context independent representations of olfactory stimuli.
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Chapter 5. Olfactory perception
2012From a functional perspective odor perception involves the detection and recognition of complex chemical blends against an ever-changing chemical background. This chapter examines one account of how this might occur using an object recognition approach (ORA).
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