Halligan P W, Marshall J C
Rivermead Rehabilitation Centre, Oxford.
Cortex. 1989 Sep;25(3):517-21. doi: 10.1016/s0010-9452(89)80066-8.
We describe two patients with left neglect who show a linear relationship between the magnitude of their line bisection displacements and the veridical length of the line presented. For lines smaller than those typically employed in previous investigations, the patients' mean performance is fairly accurate; with even smaller lines, the direction of displacement crosses over true centre to give a leftward displacement ('right neglect'). In both cases, the slope of the regression line falsifies the conjecture that (intact) left hemisphere mechanisms (correctly) bisect the (subtotal or supertotal) line length that is available in right hemispace.
我们描述了两名患有左侧忽视症的患者，他们的直线二等分位移幅度与所呈现直线的实际长度之间呈现线性关系。对于比先前研究中通常使用的直线更小的直线，患者的平均表现相当准确；对于更小的直线，位移方向越过真正的中心，产生向左的位移（“右侧忽视”）。在这两种情况下，回归线的斜率都证明了这样一种推测是错误的，即（完整的）左半球机制（正确地）二等分右半空间中可用的（部分或全部）直线长度。
