Figure 5. The effects of PRL deficiency on exploratory and anxiety behaviors.

(A) In the open field test no significant differences were observed in the frequency, total duration, or latency of first occurrence in the inner zone nor in the total average distance moved between the genotypes (n = 43 animals). (B) Mice were also tested in the Porsolt forced swim test. The time that the mice spent immobile on the second day was measured and no significant difference between the PRL^−/−, PRL^−/+ and PRL^+/+ mice was observed (n = 43).