Gardner Mark R, Potts Rosalind
University of Westminster, United Kingdom.
Acta Psychol (Amst). 2011 Jul;137(3):371-81. doi: 10.1016/j.actpsy.2011.04.006. Epub 2011 May 18.
Three experiments investigated the contribution of domain general processes to imagined transformations of whole body perspective. In a task where participants make left-right judgements about a schematic human figure, reaction times made from the point of view of the figure are longer when the figure does not share the same spatial orientation as the participant and are substantially longer than those made from the participant's own point of view. These phenomena have been attributed to a specialised mechanism for imagined perspective transformations. In the present experiments, the effect of orientation on performance was influenced by factors that affect spatial stimulus-response (S-R) compatibility; it was attenuated with reduced dimensional overlap and reversed by crossed S-R mappings. Performance in a control experiment in which no figure was present suggests that processes moderating S-R mappings may account for the effect of adopting another's point of view. Our findings demonstrate a role for domain general processes in imagined transformations of whole body perspective, imply that egocentric codes for spatial relationships within visually presented bodies are automatically generated, and undermine evidence for a specialised mechanism for imagined perspective transformations.
三项实验研究了领域通用过程对全身视角想象转换的作用。在一项任务中，参与者要对一个示意性人体图形进行左右判断，当图形与参与者的空间方向不同时，从图形角度做出的反应时间比从参与者自身角度做出的反应时间更长，且比从参与者自身角度做出的反应时间长得多。这些现象被归因于一种用于想象视角转换的特殊机制。在本实验中，方向对表现的影响受到影响空间刺激-反应（S-R）兼容性的因素的影响；随着维度重叠的减少，这种影响会减弱，并且会因交叉的S-R映射而逆转。在一个没有图形的对照实验中的表现表明，调节S-R映射的过程可能解释了采用他人视角的效果。我们的研究结果证明了领域通用过程在全身视角想象转换中的作用，意味着视觉呈现身体内空间关系的自我中心编码是自动生成的，并且削弱了关于想象视角转换特殊机制的证据。
