Reinforcement probability modulates temporal memory selection and integration processes.

ABSTRACT: We have previously shown that rats trained in a mixed-interval peak procedure (tone=4s, light=12s) respond in a scalar manner at a time in between the trained peak times when presented with the stimulus compound (Swanton & Matell, 2011). In our previous work, the two component cues were reinforced with different probabilities (short=20%, long=80%) to equate response rates, and we found that the compound peak time was biased toward the cue with the higher reinforcement probability. Here, we examined the influence that different reinforcement probabilities have on the temporal location and shape of the compound response function. We found that the time of peak responding shifted as a function of the relative reinforcement probability of the component cues, becoming earlier as the relative li

SUBMITTER: Matell MS 

PROVIDER: S-EPMC3903670 | biostudies-literature | 2014 Mar

REPOSITORIES: biostudies-literature