Werth R, Pöppel E
Institut für Medizinische Psychologie, München 2, F.R.G.
Neuropsychologia. 1988;26(5):741-5. doi: 10.1016/0028-3932(88)90010-3.
Subjects (N = 18) were required to imagine how far lines of three different lengths which were presented to them previously would extend to the left or to the right of a vertical mark. They were asked to indicate the midpoint of the imagined line length. The frequency of deviations to the left or to the right of the geometrical midpoint of the line which had to be visualized was dependent on the length of the line and on the direction towards which the subjects imagined the line to extend. Whereas a compression of imagined half space compared to geometric half space was observed both for the left and right side, imagined half space on the right side of the visual field was shifted in addition more towards the periphery. It is suggested that the latter result is related to properties of left hemisphere functioning which could explain the occurrence of a typical symptom of unilateral neglect after a right hemisphere lesion.
受试者（N = 18）需要想象之前呈现给他们的三条不同长度的线会向左或向右延伸到垂直标记的多远位置。他们被要求指出想象的线长度的中点。必须可视化的线的几何中点向左或向右偏差的频率取决于线的长度以及受试者想象线延伸的方向。虽然在左侧和右侧都观察到与几何半空间相比想象半空间的压缩，但视野右侧的想象半空间还额外更向周边偏移。有人认为，后一结果与左半球功能的特性有关，这可以解释右半球损伤后单侧忽视典型症状的出现。
