動力學造形柱體之旋轉性動態錯視運動知覺研究

Motion Perception on Column of Rotational Dynamic Illusion in Kinetic Art

本研究是從視覺心理學的角度，藉由心理物理法中的調整法實驗方式，從轉速閾值界限顯現的角度透過實驗的三項作業，探討動力學造形柱體邊數與旋轉轉速間的相互關係，以及柱體邊數、旋轉轉速和三種運動知覺間的因果關係。研究發現，不同邊數的動力學造形柱體在不同轉速搭配下，牽動了兩種視覺干擾現象的形成與強弱。這直接影響三種運動知覺在個別及整體柱體，上下絕對閾值界限與速度閾值範圍的顯現。三種運動知覺中，誘導運動速度閾值最大；似動運動最小，顯示誘導運動的動態錯視效果時間最長；似動運動最短。當轉速閾值由慢到快，依序會產生似動運動、誘導運動及運動殘像。似動運動表現最佳的是三角柱體；誘導運動表現最佳的是圓柱體；運動殘像表現最佳的是三角柱體。研究最後發現，不同柱體變化搭配不同轉速，受試者會在慢速區間出現「曖昧性運動知覺場域」；快速區間出現「空窗性運動知覺場域」。

The study approaches the perspective from the theory of visual perception and the adjustment technique in psychophysical method to discuss the causal relationship between dynamics optical illusion of motion perception and rotational speed from the perspective of 3 tasks show the speed threshold limit. The study found that different number of edges in column shape would influence the formation and strength of two visual interferences at different speeds. This directly affects three motion perception of the individual and all of the column, and further the effect of upper and lower absolute speed threshold and the range of threshold. In three different motion perceptions, the threshold of the induced movement is maximum and the threshold of the apparent movement is minimum. The induced movement of dynamic visual illusion is longest and the apparent movement is shortest. From slow to fast speed threshold, the motion perception will appear apparent movement, induced movement and movement afterimage in the order. The best performance in the apparent movement is triangular column; the best performance in the induced movement is cylinder and the best performance in the movement afterimage is triangular column. Finally, the experiments subjects will appear 'the ambiguity motion perception field' in the slow zone and 'the window period of motion perception field' in the rapid zone in different columns and speeds.