highly significantP =0.001
Spindle power for gained ‘cued' words without feedback was higher as compared with gained ‘cued+feedback' words ( P =0.05) and the interaction between the factors feedback (‘cued' versus ‘cued+feedback') and memory consequence (‘gains' versus ‘loss') was highly significant ( F (1,19) =15.31, P =0.001; η 2 =0.32).