Shaffer J I
Percept Mot Skills. 1976 Oct;42(43):567-72. doi: 10.2466/pms.1976.43.2.567.
The effects of prolonged practice on the duration of the spiral aftereffect were investigated; 3,000 trials over 30 days with 5 levels of ambient illumination were randomly presented to a single subject. Scores gradually decreased until a plateau was reached during the last 13 days. A large decrement during the last 5 days was attributed to a decision process component. An early difference in performance at different illumination levels was largely eliminated by the last 5 days.
研究了长时间练习对螺旋后效持续时间的影响；在30天内对一名受试者随机呈现3000次试验，试验包含5种环境光照水平。分数逐渐下降，直到在最后13天达到平稳状态。最后5天的大幅下降归因于决策过程因素。到最后5天，不同光照水平下早期的表现差异基本消除。
