Abstract
Twelve male hooded rats were trained on a discrimination task in which two perfectly correlated cues (size and shape) were present. Half of the Ss were trained under moderate level of water deprivation (MOD group) while the other group was highly water-deprived (HI group). Not only did MOD Ss learn the task more quickly than HI Ss, but the former made fewer errors on tests utilizing only the shape cues. This study supports the hypothesis that span of attention is inversely related to drive level.
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