Selection of mice for high scores of elementary logical task solution

Animal cognition (reasoning) in the light of genetic ideas

“…The task performance was evaluated by the mean latency of the escape reaction and by the proportion of mice, which were able to solve the most difficult stages of this test -the two tests when the underpass was blocked by a plug. The performance of EX mice in this test was significantly better than that of CoEX) up to the present F17 generation (Perepelkina et al, , 2015.…”

“…The next step was the attempt to create a "smart" mouse strain via selection involving mating individuals who demonstrated high scores of correct extrapolation task solutions (EX strain) and comparing these individuals to mice of non-selected heterogeneous population, labeled CoEX (Perepelkina et al, 2011(Perepelkina et al, , 2015. The selection criterion was rather strict -the parents of the next generation should needed to demonstrate not only high extrapolation scores, but also the lack of anxiety signs when an animal was placed in the extrapolation test environment (Poletaeva, a -the murine version of extrapolation box allows investigators to not handle animal during six test presentations, minimizing interference which could induce the anxiety in the test subjects.…”