Imagining rotation by endogenous versus exogenous forces: Distinct neural mechanisms
Imagining rotation by endogenous versus exogenous forces: Distinct neural mechanisms
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DOI：
10.1097/00001756-200108080-00046
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发表时间：
2001-08-08
期刊：
影响因子：
1.7
通讯作者：
Alpert, NM
中科院分区：
文献类型：
--
作者：
Kosslyn, SM;Thompson, WL;Alpert, NM
先前关于心理图像转换的神经影像学研究有时涉及运动过程，有时则不然。在这项研究中，在进行神经成像之前，受试者要么观看旋转有角度物体的电动机，要么手动旋转该物体。接下来，他们执行了相同的心理旋转任务，其中他们比较了此类人物对的成员，但被要求想象人物在旋转，就像他们刚刚看到模型旋转一样。当直接比较两种旋转条件的结果时，发现只有当受试者想象旋转是手动活动的结果时，运动皮层（包括 MI 区）才会被激活。因此，至少有两种性质不同的方法来想象图像中旋转的物体，并且可以自愿采用这些不同的策略。 NeuroReport 12:2519-2525 (C) 2001 Lippincott Williams & Wilkins。
Previous neuroimaging studies of mental image transformations have sometimes implicated motor processes and sometimes not. In this study, prior to neuroimaging the subjects either viewed an electric motor rotating an angular object, or they rotated the object manually. Following this, they performed the identical mental rotation task in which they compared members of pairs of such figures, but were asked to imagine the figures rotating as they had just seen the model rotate. When results from the two rotation conditions were directly compared, motor cortex (including area MI) was found to be activated only when subjects imagined the rotations as a consequence of manual activity. Thus, there are at least two, qualitatively distinct, ways to imagine objects rotating in images, and these different strategies can be adopted voluntarily. NeuroReport 12:2519-2525 (C) 2001 Lippincott Williams & Wilkins.