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This study explored pigeon memory for short time intervals. Occasional (one per session) shorter-than-usual interfood intervals (IFIs) were interspersed in series of longer IFIs. In phase 1, the shorter IFIs were of a magnitude that varied from daily session to session. In phase 2, the shorter IFIs were of one magnitude for 20 consecutive daily sessions. Analysis of the results of both experiments...
Eight pigeons were trained on a conditional discrimination using red and green saturated and desaturated fields, and red and green saturated and desaturated vertical and horizontal black-on-colour gratings. The pigeons learned to discriminate the stimuli on the basis of colour, to a high level of accuracy, regardless of saturation or the presence of gratings. The pigeons were then repeatedly exposed...
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