Locomotor activity was measured individually for each mouse using OPTO-M3 locomotor activity cages (Columbus Instruments, Columbus, OH, USA) attached to a compatible personal computer. Each cage (13 × 23 × 15 cm) was connected to an array of photocell beams. Each photobeam interruption was recorded as horizontal activity, which comprised the ambulation scores. The experimental design for locomotor activity measurements was the same as described for the ASST; however, different animals completed the locomotor activity test and the ASST.
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