منابع مشابه
Olfactory discrimination in the rabbit olfactory glomerulus.
Slow potentials evoked by odor stimulation were recorded from individual glomeruli in the olfactory bulb. Systematic analysis of responses to nine different, arbitrarily selected stimuli strongly suggests a certain amount of discrimination. This fact seems to reflect in the first synapse of the olfactory tract the type of discrimination that was recently demonstrated within olfactory neuroepith...
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Many mammals discriminate the scents of their predators (reviewed in Apfelbach et al. 2005) and this trait may be heritable (there is genetic variation in the degree of response to synthetic fox [Vulpes vulpes] odor in rats [Rattus norvegicus], Rosen et al. 2006). The mechanism underlying this identification may be relatively experience-independent, or it may rely on specific experience with pr...
متن کاملChemotopy of amino acids on the olfactory bulb predicts olfactory discrimination capabilities of zebrafish Danio rerio.
Amino acids reliably evoke strong responses in fish olfactory system. The molecular olfactory receptors (ORs) are located in the membrane of cilia and microvilli of the olfactory receptor neurons (ORNs). Axons of ORNs converge on specific olfactory bulb (OB) glomeruli and the neural responses of ORNs expressing single Ors activate glomerular activity patterns typical for each amino acid. Chemic...
متن کاملDisruption of centrifugal inhibition to olfactory bulb granule cells impairs olfactory discrimination.
Granule cells (GCs) are the most abundant inhibitory neuronal type in the olfactory bulb and play a critical role in olfactory processing. GCs regulate the activity of principal neurons, the mitral cells, through dendrodendritic synapses, shaping the olfactory bulb output to other brain regions. GC excitability is regulated precisely by intrinsic and extrinsic inputs, and this regulation is fun...
متن کاملDiscrimination of saturated aldehydes by the rat I7 olfactory receptor.
The discrimination of n-alkyl-saturated aldehydes during the early stage of odorant recognition by the rat I7 olfactory receptor (OR-I7) is investigated. The concentrations of odorants necessary for 50% activation (or inhibition) of the OR-I7 are measured by calcium imaging recordings of dissociated rat olfactory sensory neurons, expressing the recombinant OR-I7 from an adenoviral vector. These...
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ژورنال
عنوان ژورنال: Science
سال: 1969
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.166.3910.1310