A closer look at the dependence of neon colour spreading on wavelength and illuminance

Ejima, Redies, Takahashi and Akita [(1984) Vision Research, 24, 1719-1726], studying the dependence of the neon colour spreading effect on wavelength and illuminance, found a number of relationships that appeared of difficult interpretation. This paper shows that these relationships can all be logically predicted within Grossberg and Mingolla's [(1985) Psychological Review, 92, 173-211] approach to the neon spreading problem, with no need of making ad hoc assumptions.