問題 大小知觉是視知觉心理学中重要問題之一,也是人在实践活动中所經常接触的問題。前人研究表明,大小知觉总是与知觉对象的距离成一定的关系,并提出所謂大小-距离不变假設(Size-Distance Invariace Hypothesis)来說明这种現象。在一般情况下,对象离开观察者愈远,网膜视象随距离按比例縮小,而观察者所知觉的大小却仍接近对象的原来实际大小(物理大小),也就是說大小知觉保持着一定的恆常性。这是大小知觉与距离关 Problem size perception is one of the most important problems in visual psychology. It is also a problem that people often touch on in practical activities. Previous studies have shown that size perception always has a certain relationship with the perceived object distance and proposed the so-called size-distance invariant hypothesis (Size-Distance Invariace Hypothesis) to illustrate this phenomenon. In general, the farther the object is from the observer, the closer the retinal image scales with distance and the perceived size of the observer is still close to the original actual size (physical size) of the object, meaning that the size perception remains constant Constant. This is the size of perception and distance off