Before revision:  Here we study the quantitative relation between adaptive response and background compensation within the frameworkof mathematical models. We show that any particular type of adaptive response is neither sufficient nor necessary for an effective adaptive enlargement of dynamic range.
After revision:  Here we study the quantitative relation between adaptive response and background compensation within a modeling framework. In contrast to the commonly held view, we show that any particular type of adaptive response is neither sufficient nor necessary for an effective adaptive enlargement of dynamic range.