Time, not sleep, unbinds contexts from item memory.

There was a highly significant positive effect of the congruent contextual cue on memory performance [F(1,77) = 100.9, P<0.001, η 2 = 0.57], but no effect of time of day [F(1,77) = 2.0, P = 0.17, η 2 = 0.03], nor an interaction between these factors [F(1,77) = 0.4, P = 0.53, η 2 = 0.01].

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