Table 2 Cognitive test performance
From: The impact of expectancy on cognitive performance during alcohol hangover
|  | All subjects | AHS > 0 only | ||||
|---|---|---|---|---|---|---|
Expectancy group | Control group | p-value | Expectancy group | Control group | p-value | |
Stroop test | ||||||
Mean RT—congruent items (ms) | 1184.0 (188.5) | 1300.5 (270.2) | .55 | 1193.8 (198.0) | 1304.2 (273.8) | .18 |
Mean RT—incongruent items (ms) | 1617.1 (343.0) | 1680.7 (323.9) | .12 | 1649.2 (363.7) | 1655.6 (329.1) | .96 |
Interference (ms) | 433.2 (232.0) | 380.2 (256.6) | .50 | 455.3 (242.0) | 351.4 (219.8) | .19 |
Number of errors | 5.5 (2.0) | 5.5 (1.9) | 1.00 | 5.5 (2.1) | 5.5 (2.0) | .97 |
Eriksen’s Flanker test | ||||||
Compatibility RT (ms) | 16.4 (60.1) | 11.8 (35.6) | .77 | 15.7 (64.9) | 11.8 (33.1) | .82 |
Distance RT (ms) | 21.9 (32.7) | 19.5 (50.6) | .86 | 23.0 (35.1) | 17.5 (52.8) | .72 |
Number of errors | 2.2 (1.4) | 1.5 (1.7) | .16 | 2.20 (1.2) | 1.6 (1.7) | .44 |
Divided attention test | ||||||
Mean RT—central stimuli (ms) | 696.6 (190.7) | 698.8 (178.0) | .97 | 702.6 (206.3) | 671.3 (162.1) | .63 |
Mean RT—peripheral stimuli (ms) | 774.0 (182.9) | 768.8 (182.9) | .92 | 745.7 (178.6) | 761.5 (111.6) | .76 |
Number of errors | 3.4 (4.4) | 3.1 (2.3) | .80 | 3.3 (4.3) | 2.8 (2.3) | .70 |
CANTAB—Intra-extra dimensional set shifting test | ||||||
Extra-dimensional number of errors | 13.9 (10.3) | 11.4 (9.6) | .43 | 13.7 (10.7) | 11.4 (9.9) | .52 |
Intra-dimensional number of errors | 6.6 (2.5) | 6.0 (4.3) | .56 | 6.1 (1.7) | 6.0 (4.5) | .92 |
CANTAB—spatial working memory test | ||||||
Number of errors | 21.6 (19.2) | 22.5 (17.0) | .88 | 21.5 (18.1) | 24.2 (17.2) | .67 |
Strategy score | 30.3 (5.8) | 28.3 (9.6) | .45 | 30.8 (5.7) | 29.6 (6.6) | .58 |
Free recall test | ||||||
Number of correctly recalled words | 8.2 (2.9) | 6.9 (2.5) | .15 | 7.6 (2.7) | 7.1 (2.5) | .55 |