Marks D F, Isaac A R
Health Research Centre, Middlesex University, Queensway, Enfield, UK.
Br J Psychol. 1995 May;86 ( Pt 2):271-82. doi: 10.1111/j.2044-8295.1995.tb02561.x.
Brain mapping techniques were used to investigate the topographical distribution of electroencephalographic (EEG) activity accompanying visual and motor imagery in four different tasks. Participants were selected for their self-reported vivid or non-vivid imagery using the Vividness of Visual Imagery Questionnaire (VVIQ) and the Vividness of Movement Imagery Questionnaire (VMIQ). Topographical maps of EEG activation revealed that alpha power was attenuated in vivid images during visual imagery, particularly in the left posterior quadrant of the cortex, but enhanced during motor imagery. The imagery vividness variable interacted with experimental condition or with experimental condition and location in all four tasks. Because demand characteristics and instrument artifacts can be eliminated as possible explanations of the results, these data provide strong evidence of the construct validity of the VVIQ and VMIQ as measures of visual and motor imagery experience.
脑图谱技术被用于研究在四项不同任务中，伴随视觉和运动想象的脑电图（EEG）活动的地形分布。使用视觉意象生动性问卷（VVIQ）和运动意象生动性问卷（VMIQ），根据参与者自我报告的生动或不生动意象来选择参与者。EEG激活的地形图显示，在视觉想象过程中，生动图像中的α波功率减弱，特别是在皮质的左后象限，但在运动想象过程中增强。在所有四项任务中，意象生动性变量与实验条件或与实验条件及位置相互作用。由于需求特征和仪器伪迹可以作为结果的可能解释而被排除，这些数据为VVIQ和VMIQ作为视觉和运动意象体验测量方法的结构效度提供了有力证据。
