Landry Simon P, Pagé Sara, Shiller Douglas M, Lepage Jean-François, Théoret Hugo, Champoux François
aSchool of Speech Pathology and Audiology, University of Montreal, Montréal, Québec, Canada bRaymond-Dewar Institute, Montréal, Québec, Canada cNeuropsychology and Cognition Research Center dCHU Sainte-Justine Research Centre eCenter for Research on Brain, Language and Music, McGill University, Montréal, Québec, Canada fCenter for Interdisciplinary Brain Sciences Research, Stanford University School of Medicine, Stanford, California, USA.
Neuroreport. 2015 Feb 11;26(3):101-6. doi: 10.1097/WNR.0000000000000307.
A large number of neuroimaging studies have investigated imagined sensory processing and motor behaviours. These studies have reported neural activation patterns for imagined processes that resemble those of real sensory and motor events. The widespread use of such methods has raised questions about the extent to which imagined sensorimotor events mimic their overt counterparts, including their ability to elicit sensorimotor interactions. Direct behavioural evidence of imagery-induced multisensory interactions has been found recently in tasks involving auditory and visual processing. An influence of sensory imagery on the control of motor action, however, has not been investigated previously. Here, we show that both real and imagined moving sounds induce involuntary ocular movement in a nonvisual tracking task. The present data build on the results of previous studies of sensory imagery by showing that such conditions activate sensory neural areas. Moreover, we show an engagement of functional sensorimotor networks for imagined stimuli in a manner similar to the processing of real auditory stimuli.
大量神经影像学研究对想象中的感觉处理和运动行为进行了调查。这些研究报告了想象过程的神经激活模式，这些模式类似于真实的感觉和运动事件。此类方法的广泛应用引发了一些问题，即想象中的感觉运动事件在多大程度上模仿其明显的对应物，包括它们引发感觉运动相互作用的能力。最近在涉及听觉和视觉处理的任务中发现了意象诱发的多感觉相互作用的直接行为证据。然而，感觉意象对运动动作控制的影响此前尚未得到研究。在此，我们表明，真实的和想象中的移动声音都会在非视觉跟踪任务中诱发不自主的眼球运动。目前的数据基于先前感觉意象研究的结果，表明此类条件会激活感觉神经区域。此外，我们还表明，功能性感觉运动网络对想象刺激的参与方式类似于对真实听觉刺激的处理。
