The nature of the pi1 colour mechanism of W.S. Stiles.

  title={The nature of the pi1 colour mechanism of W.S. Stiles.},
  author={E. N. Pugh},
  journal={The Journal of physiology},
  volume={257 3},
  • E. N. Pugh
  • Published 1976 in The Journal of physiology
The ppi1 colour mechanism was isolated by means of Stile's auxiliary field technique: that it is pi1 which is isolated is proven by both test and field action spectra. 2. The fundamental mechanisms of human trichromatic colour vision must satisfy Grassman's law of additivity. The hypothesis that pi1 is one of the three fundamentals is tested by experiments in which pairs (u1, u2) of monochromatic adapting fields are mixed 3. When two fields with wave-lengths in the neighbourhood of its primary… CONTINUE READING