On average, aspartame-trained animals showed a trend to completing a higher number of trials compared to water-trained animals, but this difference was not significant (mean±SEM: Water 389±85 trials/day, N = 6 mice; Aspartame 492±41, N = 9 mice; P = 0.25).
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An automated homecage system for multiwhisker detection and discrimination learning in mice.
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When the stimulus was reduced to the low-intensity air puff at the beginning of the third training day, averaged anticipatory licking on stimulus trials was initially reduced but rapidly increased relative to “blank” trials after 24 hrs of training, a difference that was highly significant across the group (10/14 animals showed a stimulus-evoked increase in licking frequency; Fig 6B, 6C and 6E ).