Neural substrates of animal mental imagery: calcarine sulcus and dorsal pathway involvement - an fMRI study
Neural substrates of animal mental imagery: calcarine sulcus and dorsal pathway involvement - an fMRI study
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DOI：
10.1016/s0006-8993(01)03232-2
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发表时间：
2002-01-11
期刊：
影响因子：
2.9
通讯作者：
Mauss, Y
中科院分区：
文献类型：
--
作者：
Lambert, S;Sampaio, E;Mauss, Y
神经反应进行了测量，使用功能磁共振成像在六个健康的志愿者，执行一个心理意象的任务，只使用口头线索。他们听了一系列动物的名字，从中产生一个心理形象，被动地听了一系列抽象的单词。他们使用相同的方案进行了两次测试。SPM99处理结果显示，两个会话激活的距状沟和局部激活灶，主要是在枕顶区。其他涉及使用言语线索的比喻心理意象的研究表明枕颞区的激活。但距状沟和背侧通路均无。我们帐户毛皮的差异相对于以前的心理意象研究使用口头线索，在实验条件的差异。在我们看来，限制刺激到一个单一的语义类别（动物），并增加专门用于生产MI的时间，可能已经增强了图片的组成部分。这个心理意象生成协议显示了解剖功能反应的实验任务的设计的重要性。(C)2002 Elsevier Science B.V.保留所有权利。
Neural response was measured using fMRI in six healthy volunteers, performing a mental imagery task, using verbal cues exclusively. They listened to a list of animal names from which to generate a mental image, and listened passively to a list of abstract words. They were tested twice, using the same protocol. SPM99-processed results showed for both sessions activation in the calcarine sulcus and local activation foci, mainly in the occipito-parietal region. Other studies involving figurative mental imagery using verbal cues, have shown activation in the occipito-temporal area. but none in the calcarine sulcus or in the dorsal route. We account fur the discrepancies relative to previous mental imagery studies using verbal cues, in terms of differences in the experimental conditions. In our opinion, restricting the stimuli to a single semantic category (animals) and increasing the time dedicated to the production of MI, may have enhanced the components of the pictures. This mental imagery generation protocol shows the importance of the design of experimental tasks on anatomo-functional responses. (C) 2002 Elsevier Science B.V. All rights reserved.