Friederici A D, Levelt W J
Max-Planck-Institut fur Psycholinguistik, Nijmegen, The Netherlands.
Aviat Space Environ Med. 1987 Sep;58(9 Pt 2):A164-9.
The cognitive mechanisms of spatial orientation were studied in an experiment varying different perceptual cues systematically: the retinal, the visual background, the vestibular, and the somatosensory information. Verbal descriptions of visually presented arrays were required under different head positions (straight/tilt) and under different gravity conditions (1 G/micro G). Results for two subjects clearly show that different coordinate systems are used under the two gravity conditions. Under 1 G it is the gravitational vertical which is chosen for primary reference, whereas under microgravity retinal information is primary. Conflicts between competing pieces of sensory information are solved by weighting the perceptual cues differently. The finding that consistent assignment can be made immediately after first exposure to weightlessness indicates that mental representations of space can be used independently of perceptual input parameters.
在一项实验中，通过系统地改变不同的感知线索来研究空间定向的认知机制：视网膜、视觉背景、前庭和体感信息。在不同的头部位置（直立/倾斜）和不同的重力条件（1G/微重力）下，需要对视觉呈现的阵列进行语言描述。两名受试者的结果清楚地表明，在两种重力条件下使用了不同的坐标系。在1G条件下，以重力垂直方向作为主要参考，而在微重力条件下，视网膜信息是主要的。通过对感知线索进行不同的加权来解决相互竞争的感官信息之间的冲突。首次接触失重后能立即进行一致的赋值这一发现表明，空间的心理表征可以独立于感知输入参数而被使用。
