a strong trendp = 0.0638
Arc was significantly elevated in the P2 but not the S2 fraction, although there was a strong trend towards upregulation of Arc in the S2 fraction ( Fig. 1 C , Arc in S2 t = 2.061, df = 11, p = 0.0638; Fig. 1 D ; Arc in P2, unpaired t test t = 2.217, df = 12, p = 0.0467).