IRCCS Centro San Giovanni di Dio Fatebenefratelli, Via PILASTRONI, 4; 25125 Brescia, Italy.
Neuropsychology. 2011 Mar;25(2):193-200. doi: 10.1037/a0021304.
It has been proposed that time, space, and numbers share the same metrics and cortical network, the right parietal cortex. Several recent investigations have demonstrated that the mental number line representation is distorted in neglect patients. The aim of this study is to investigate the relationship between time and spatial configuration in neglect patients.
Fourteen right-brain damaged patients (six with neglect and eight without neglect), as well as eight age-matched healthy controls, performed a time discrimination task. A standard tone (short: 700 ms and long: 1,700 ms) had to be confronted in duration to a test tone. Test tone differed of 100, 200, and 300 ms respect to the standard tone duration.
Neglect patients performed significantly worse than patients without neglect and healthy controls, irrespective of the duration of the standard tone.
These results support the hypothesis that mental representations of space and time both share, to some extent, a common cortical network. Besides, spatial neglect seems to distort the time representation, inducing an overestimation of time durations.
有人提出，时间、空间和数字具有相同的度量和皮质网络，即右顶叶皮层。最近的几项研究表明，在忽视症患者中，心理数字线表示被扭曲。本研究旨在探讨忽视症患者时间和空间构形之间的关系。
14 名右脑损伤患者（6 名忽视症患者和 8 名无忽视症患者）以及 8 名年龄匹配的健康对照者进行了时间辨别任务。标准音（短：700ms 和长：1700ms）必须与测试音在持续时间上相匹配。测试音比标准音的持续时间长 100、200 和 300ms。
忽视症患者的表现明显差于无忽视症患者和健康对照组，而与标准音的持续时间无关。
这些结果支持了这样一种假设，即空间和时间的心理表象在某种程度上共享一个共同的皮质网络。此外，空间忽视似乎扭曲了时间表示，导致时间持续时间的高估。
