Figure 1.

Behavioural results. (a) Plot of the log-transformed reaction times across the learning and the two consolidation phases for the d-cycloserine (circles) and the placebo (triangles, dashed line) groups. The initial learning blocks were the 15 sequence learning blocks (blocks 2 to 14, 16 and 17) while participants performed a random sequence in blocks 1 and 15. Each consolidation phase consisted of three sequence blocks. There were no group differences in either the initial learning or the consolidation (all p>0.9). (b) Balance scores (i.e. log-transformed reaction times multiplied by accuracy) across the learning task and consolidation. Error bars show the standard error of the mean, *p<0.055.