表象建构的面积评估

通过视觉或触觉给被试呈现完整的三角形，或呈现构成一个三角形所必要而又充分的一组部件以在表象上形成一个三角形，并评估其大小。结果发现，被试在表象中利用部件建构起来的三角形面积的增长，与实际知觉的三角形一样，均遵从幂函数定律，且幂函数指数均小于１，显示出表象与知觉的机能等价。

THE ESTIMATION OF AREA CONSTRUCTED BY IMAGERY

This experiment investigated the estimation of area constructed by imagery in comparison with the estimation of area perceived.The stimuli consisted either of a rectangle or of a group of its necessary component parts,e.g.the line(s)and corner(s),were presented visually or tactually.Ss were then asked to estimate the area of a rectangle perceived or constructed from the parts by imagery and to assign a number to it in accordance with a standard one which became familiar at the beginning of the experiment.It was found that the increase of area constructed by imagery obeyed the power function law as the increase of area perceived,the index was 0.601-0.830(visual experiment)and 0.524-0.787(tactual experiment).The results confirmed the functional equivalance of imagery and perception.