Functional MRI of Intranasal Chemosensory Trigeminal Activation
نویسندگان
چکیده
منابع مشابه
Functional MRI of intranasal chemosensory trigeminal activation.
Numerous brain imaging studies using positron emission tomography or functional magnetic resonance imaging (fMRI) have provided considerable information regarding the processing of sensory information. While many studies have also been performed on olfactory mediated sensations, cerebral activation following intranasal trigeminal stimulation has not been systematically addressed. The aim of thi...
متن کاملCerebral activation to intranasal chemosensory trigeminal stimulation.
Although numerous functional magnetic resonance imaging (FMRI) studies have been performed on the processing of olfactory information, the intranasal trigeminal system so far has not received much attention. In the present study, we sought to delineate the neural correlates of trigeminal stimulation using carbon dioxide (CO(2)) presented to the left or right nostril. Fifteen right-handed men un...
متن کاملIntranasal chemosensory function of the trigeminal nerve and aspects of its relation to olfaction.
OBJECTIVES The review outlines characteristics of the intranasal trigeminal chemosensory system. In addition, it provides selective comparisons of the trigeminal and olfactory systems, the two of which interact at multiple levels. RESULTS AND CONCLUSIONS This interaction between the trigeminal and olfactory systems is an important determinant of sensations of odor. Further, it appears to chan...
متن کاملTrigeminal and olfactory chemosensory impact of selected terpenes.
In Experiment 1, four normosmics and four anosmics (three congenital, one idiopathic) provided odor and nasal pungency thresholds, respectively, for the following terpenes: delta3-carene, p-cymene, linalool, 1.8-cineole, and geraniol, plus the structurally related compound cumene. Additionally, all subjects provided nasal localization (i.e., right/left) and eye irritation thresholis. Trigeminal...
متن کاملPerception of trigeminal chemosensory qualities in the elderly.
One hundred healthy elderly subjects (65-88 years) were tested for their ability to: (i) assign verbal labels from a list of trigeminal type descriptors to six odorants known to have a strong trigeminal component; (ii) discriminate between intensity-matched pairs of these odorants in an odd-ball paradigm. Their performance was compared with that of 100 young controls (23--36 years). Young contr...
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ژورنال
عنوان ژورنال: Chemical Senses
سال: 2005
ISSN: 0379-864X,1464-3553
DOI: 10.1093/chemse/bjh186