Patterns of Cerebral Activation During Olfactory and Trigeminal Stimulations
Patterns of Cerebral Activation During Olfactory and Trigeminal Stimulations
复制标题
DOI：
10.1002/hbm.20548
复制
发表时间：
2009-03-01
影响因子：
4.8
通讯作者：
Millot, Jean-Louis
中科院分区：
文献类型：
--
作者：
Lombion, Sandrine;Comte, Alexandre;Millot, Jean-Louis
众所周知，大多数气味剂都会刺激嗅觉系统和三叉神经系统。然而，涉及这些感觉知觉的大脑过程之间的重叠仍然很少被记录。本研究的目的是比较功能磁共振成像大脑激活，同时闻到两种气味的相似的感知强度和愉快：苯乙醇（纯嗅觉刺激）和乙酸异戊酯（双峰嗅觉三叉神经刺激）在一个同质样本的15名健康，右利手的女性受试者。分析处理这两种气味条件之间的大脑激活模式的对比。结果表明，一个显着的招聘的权利岛皮质，并在两侧扣带回响应三叉神经组件。这些研究结果进行了讨论，这些气味剂的特性与以前的研究中所测试的。《脑图谱》30：821-828，2009年。(c)2008 Wiley-Liss，Inc.
It is well known that most odorants stimulate both the olfactory system and the trigeminal system. However, the overlap between the brain processes involved in each of these sensorial perceptions is still poorly documented. This study aims to compare fMRI brain activations while smelling two odorants of a similar perceived intensity and pleasantness: phenyl ethyl alcohol (a pure olfactory stimulus) and iso-amyl-acetate (a bimodal olfactory-trigeminal stimulus) in a homogeneous sample of 15 healthy, right-handed female subjects. The analysis deals with the contrasts of brain activation patterns between these two odorant conditions. The results showed a significant recruitment of the right insular cortex, and bilaterally in the cingulate in response to the trigeminal component. These findings are discussed in relation to the characteristics of these odorants compared with those tested in previous studies. Hum Brain Mapp 30:821-828, 2009. (c) 2008 Wiley-Liss, Inc.