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Attentional modulation in human primary olfactory cortex
Nature Neuroscience, 2004Central to the concept of attention is the fact that identical stimuli can be processed in different ways. In olfaction, attention may designate the identical flow of air through the nose as either respiration or olfactory exploration. Here we have used functional magnetic resonance imaging (fMRI) to probe this attentional mechanism in primary ...
Zelano, Christina +8 more
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Orbitofrontal control of the olfactory cortex regulates olfactory discrimination learning
The Journal of PhysiologyAbstractServing as an integral node for cognitive processing and value‐based decision‐making, the orbitofrontal cortex (OFC) plays a multifaceted role in associative learning and reward‐driven behaviours through its widespread synaptic integration with both subcortical structures and sensory cortices.
Ding Wang +7 more
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Brain Imaging and Behavior, 2017
Upper respiratory tract infection (URI) is one of the most common etiology of olfactory loss. Previous studies demonstrated that both olfactory bulb (OB) volume and sulcus (OS) depth decreased in patients with post-infectious olfactory loss (PIOL) compared to normal controls. The aim of our study was to observe alterations of central olfactory pathways
Linyin Yao +6 more
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Upper respiratory tract infection (URI) is one of the most common etiology of olfactory loss. Previous studies demonstrated that both olfactory bulb (OB) volume and sulcus (OS) depth decreased in patients with post-infectious olfactory loss (PIOL) compared to normal controls. The aim of our study was to observe alterations of central olfactory pathways
Linyin Yao +6 more
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What's primary about primary olfactory cortex?
Nature Neuroscience, 2011Learned odor discrimination and generalization are reflected in patterns of ensemble activity in anterior piriform cortex, where learned discrimination between two odors reduces the correlation between their induced patterns.
Tali, Weiss, Noam, Sobel
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Neurogenesis in the rat primary olfactory cortex
International Journal of Developmental Neuroscience, 1986AbstractNeurogenesis in the rat primary olfactory cortex was examined with [3H]thymidine autoradiography. The experimental animals were the offspring of pregnant females given an injection of [3H]thymidine on two consecutive gestation days. Nine groups of embryos were exposed to [3H] thymidine on E13–E14, E14–E15, … E21–E22, respectively.
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Cerebral Cortex and Olfactory Apparatus
2017This section contains a gallery of original Cajal drawings pertaining to the cerebral cortex and olfactory apparatus.
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Piriform Cortex and Olfactory Tubercle
2014This chapter describes perspectives on the possible functional logic of neuronal circuits in the central olfactory system. The central olfactory system has multiplex pathways and loops that connect the olfactory bulb, olfactory cortex, neocortex, thalamus, ventral striatum, amygdala, hippocampus, and hypothalamus.
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Comparative Aspects of Olfactory Cortex
1990Three different types of cerebral cortex have traditionally been distinguished on the basis of structural, phylogenetic, and ontogenetic considerations (Ariens Kappers et al., 1936): neocortex, hippocampal archicortex, and olfactory paleocortex. An often-stated speculation with little experimental or theoretical support is that the neocortex evolved ...
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Axonal patterns in olfactory cortex after olfactory bulb removal in newborn rats
Experimental Neurology, 1975Abstract The degeneration pattern in olfactory cortex following lesions within this region is described in mature rats, of which some had one olfactory bulb removed at birth. The observations suggest that the intracortical pathway reinnervates the distal parts of apical dendrites that had been deafferented by the neonatal lesion.
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