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. 2014 Jun 6;9(6):e98163. doi: 10.1371/journal.pone.0098163

Figure 5. Proximal auditory stimuli (either tone or white noise) are more reinforcing than distal stimuli.

Figure 5

Rats made more food-cup entries during the proximal stimulus presentation during training (panel A), and performed more nose-pokes for the proximal stimulus (panel B). Data are represented as mean (± SEM). There were no significant differences between sign-trackers (ST) and goal-trackers (GT).