Russell P W, Wheeler T G
Vision Res. 1983;23(5):525-8. doi: 10.1016/0042-6989(83)90127-x.
The luminance of a large diffuse field, viewed peripherally, was temporally modulated near absolute detection threshold. The field luminance either increased abruptly and decreased gradually (ON stimulus) or increased gradually and decreased abruptly (OFF stimulus). For all wavelengths shorter than 620 nm, sensitivity to the ON stimulus was greater than to the OFF. The spectral sensitivity curves obtained indicate that rods and/or their associated neural pathways are more sensitive to ON stimulus transients than to OFF.
当以周边视野观察时，一个大的漫射场的亮度在接近绝对检测阈值的情况下进行时间调制。场亮度要么突然增加并逐渐降低（开刺激），要么逐渐增加并突然降低（关刺激）。对于所有短于620纳米的波长，对开刺激的敏感度高于关刺激。所获得的光谱敏感度曲线表明，视杆细胞和/或其相关的神经通路对开刺激瞬变比对关刺激更敏感。
