Abstract
Abstract. Japanese quail, Coturnix coturnix japonica, were bidirectionally selected for early approach preferences between two achromatic patterns and two coloured stimuli. The pattern preference lines responded to selection by less robust and more asymmetrical progression than the colour preference lines, but F 2 segregation suggested relatively simple genetic influences in both selection studies. Selection effects were partially transferred across the two stimulus modalities. While imprinting to colours modified colour preferences in subjects from each genetic line of each study, imprinting to patterns did not modify pattern preferences in any of the lines. This was true regardless of the type and magnitude of selected preferences. Discussion focuses on the uses of these preparations in modelling the neural representation of stimulus information, and on the processes of genotype-environment interaction and genetic canalization of behavioural development.
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