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. 2003 Sep;10(5):355–362. doi: 10.1101/lm.60803

Figure 3.

Figure 3

The relationship between the mean percentage of CRs generated by various NM conditioning procedures in control animals (abscissa) and the degree of enhancement of learning produced by LSD (13 μg/kg). The effects of LSD are expressed as an acquisition ratio, calculated as the mean percentage of CRs for animals injected with LSD divided by the mean percentage of CRs for their respective controls. Data were taken from Gimpl et al. (1979), Harvey et al. (1982, 1988), Schindler et al. (1985a,b), and Welsh et al. (1998a,b).