Symbolic working memory—latency for serial order recall

4-Span (secs) non-MCI (n = 33) MCI (n = 24) Significance
position 1 2.47 (0.93) 3.71 (1.82) P < 0.001
position 2 1.30 (1.31) 1.81 (0.94) ns
position 3 1.26 (0.80) 1.95 (1.55) P = 0.032
position 4 0.64 (0.27) 0.75 (0.28) ns
5-Span (secs) non-MCI MCI Significance
position 1 2.60 (1.25) 2.57 (1.48) ns
position 2 1.30 (1.05) 1.49 (0.99) ns
position 3 1.70 (1.14) 2.21 (2.03) ns
position 4 1.66 (0.94) 2.34 (1.22) ns
position 5 1.03 (1.26) 1.33 (1.30) ns

ns: not significant