Thomas Nicole A, Gwinn Owen S, Bartlett Megan L, Nicholls Michael E R
Turner Institute for Brain and Mental Health, Monash University, Melbourne, AU.
College of Education, Psychology and Social Work, Flinders University, Adelaide, AU.
J Cogn. 2020 Feb 3;3(1):4. doi: 10.5334/joc.92.
Pseudoneglect causes neurologically intact individuals to bias their attention to the left in near space, and to the right in far space. These attentional asymmetries impact both ambulatory and non-ambulatory activities, causing individuals to deviate rightward. While most studies investigating real-world navigation have found a rightward deviation when passing through a door, some have found the opposite pattern for corridors. To explore this dissociation, the current experiment explicitly compared navigation through doorways and corridors. To allow for a direct comparison between these two environments, the navigation task was undertaken in a simulated environment. Dextral participants ( = 98) completed several trials in either the doorway or corridor condition and their mean lateral position and variance was analysed. A rightward deviation was observed for doorways, consistent with previous research. Rightward biases were also observed for corridors, irrespective of the position within the corridor. The results argue against an explanation based on near/far space for the leftward bias in corridors. An explanation based on elevation of view is proposed as an alternative. The study also demonstrates that simulated environments provide an efficient means of investigating asymmetries in navigation.
假性忽视会使神经功能正常的个体在近空间将注意力偏向左侧，而在远空间将注意力偏向右侧。这些注意力不对称会影响移动和非移动活动，导致个体向右偏离。虽然大多数研究现实世界导航的实验发现，人们穿过门时会向右偏离，但也有一些研究发现，在走廊中情况则相反。为了探究这种差异，本实验明确比较了通过门口和走廊的导航情况。为了能够直接比较这两种环境，导航任务在模拟环境中进行。右利手参与者（n = 98）在门口或走廊条件下完成了多项试验，并分析了他们的平均横向位置和方差。在门口观察到向右偏离，这与先前的研究一致。在走廊中也观察到向右偏向，无论在走廊中的位置如何。结果反驳了基于近/远空间来解释走廊中向左偏向的观点。提出了一种基于视角高度的解释作为替代。该研究还表明，模拟环境为研究导航中的不对称性提供了一种有效的方法。
