Perception without a Thalamus How Does Olfaction Do It?
نویسنده
چکیده
The olfactory system has generated considerable interest in recent years, mainly focused on receptor genes and early olfactory processing. In this issue of Neuron, Mori et al. focus centrally, providing evidence for slow- and fast-wave states in olfactory cortex that appear to gate the inflow of information underlying conscious smell perception.
منابع مشابه
Olfactory Objects
The philosophy of perception has been mostly focused on vision, to the detriment of other modalities like audition or olfaction. In this paper I focus on olfaction and olfactory experience, and raise the following questions: is olfaction a perceptual-representational modality? If so, what does it represent? My goal in the paper is, firstly, to provide an affirmative answer to the first question...
متن کاملThalamic olfaction: characterizing odor processing in the mediodorsal thalamus of the rat.
Thalamus is a key crossroad structure involved in various functions relative to visual, auditory, gustatory, and somatosensory senses. Because of the specific organization of the olfactory pathway (i.e., no direct thalamic relay between sensory neurons and primary cortex), relatively little attention has been directed toward the thalamus in olfaction. However, an olfactory thalamus exists: the ...
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Olfactory information reaches olfactory cortex without a thalamic relay. This neuroanatomical substrate has combined with functional findings to suggest that, in olfaction, the typical thalamic role in sensory processing has shifted to the olfactory bulb or olfactory cortex. With this in mind, we set out to ask whether the thalamus at all plays a significant functional role in human olfaction. ...
متن کاملHuman Olfaction, Crossmodal Perception, and Consciousness
When philosophers attempt to provide a theory of perception they usually focus exclusively on vision, assuming, without argument, that it can serve as a model for perception in general, extendible, with minor modifications, to all other senses. This is a hopeless strategy and Andreas Keller’s monograph is a useful corrective to it. The concluding chapter, Comparing Olfaction and Vision, would b...
متن کاملThe functional role of the medio dorsal thalamic nucleus in olfaction.
Olfaction is unique relative to other sensory modalities in terms of how its neuroanatomy is organized within the brain and its perceptual properties. Olfactory information processing occurs via connections made directly from primary processing areas (piriform cortex) to neocortical structures (orbitofrontal cortex) as well as indirectly via the medio-dorsal nucleus of the thalamus (MDNT). To d...
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عنوان ژورنال:
- Neuron
دوره 46 شماره
صفحات -
تاریخ انتشار 2005