Spontaneous Alternation (Y-Maze).

A) Scopolamine-injected mice (SCP) and control (Ctrl) mice showed the same level of spontaneous alternation (n = 9-10/group). B) Scopolamine-treated mice had significantly more arm entries than control mice. C) 129S6/Tg2576 mice and WT mice performed showed the same level of spontaneous alternation (n = 16-19/group). D) The number of total arm entries between WT and 129S6/Tg2576 mice was not statistically different. Mice with less than 8 arm entries were excluded from the alternation analysis. Data are mean ± SEM; **p < 0.01 (Student’s t-test).