Vividness of mental imagery: individual variability can be measured objectively

Cui, Jeter, Yang, Montague, Eagleman (2007) Vividness of mental imagery: individual variability can be measured objectively Vision Res (IF: 1.8) 47(4) 474-8

Abstract

When asked to imagine a visual scene, such as an ant crawling on a checkered table cloth toward a jar of jelly, individuals subjectively report different vividness in their mental visualization. We show that reported vividness can be correlated with two objective measures: the early visual cortex activity relative to the whole brain activity measured by functional magnetic resonance imaging (fMRI) and the performance on a novel psychophysical task. These results show that individual differences in the vividness of mental imagery are quantifiable even in the absence of subjective report.

当被要求想象一个视觉场景，例如蚂蚁在方格桌布上朝着一罐果冻爬行时，个人主观地在他们的心理可视化中报告不同的生动性。我们表明报告的生动性可以与两个客观测量相关联：早期视觉皮层活动相对于通过功能磁共振成像（fMRI）测量的整个大脑活动和在新的心理物理任务上的表现。这些结果表明，即使没有主观报告，心理图像的生动性的个体差异也是可以量化的。

Links

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1839967
http://www.ncbi.nlm.nih.gov/pubmed/17239915
http://dx.doi.org/10.1016/j.visres.2006.11.013

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