32 adapt-test pairings, grouped into sixteen conditions according to angular difference and ocular presentation mode.

Each adaptor orientation appears four times, paired with a vertical test (0°) and a horizontal test (90°), and each adapt-test pairing is presented monoptically and dichoptically.

每种适应刺激的朝向（adaptor orientation）均呈现四次，分别与垂直测试刺激（0°）和水平测试刺激（90°）进行配对；且每一组适配-测试刺激配对均采用单眼呈现（monoptically）与双眼分视呈现（dichoptically）两种方式。