Table 2 The cognitive performance for the Stroop and word-reading test in young and elderly subjects
Trial | Stroop test | Word-reading test | Stroop interference time (s) | ||||||
|---|---|---|---|---|---|---|---|---|---|
n | Total time period (s) | 100/total time period (answers/s) | Number of errors | n | Total time period (s) | 100/total time period (answers/s) | Number of errors | ||
Young subjects | |||||||||
 Tr 1 | 9 | 64.2 ± 4.8# | 1.6 ± 0.1# | 1.7 ± 0.7# | 9 | 47.4 ± 2.0 | 2.1 ± 0.1 | 0 | 16.9 ± 3.0 |
 Tr 2 | 9 | 62.7 ± 3.8# | 1.6 ± 0.1# | 1.4 ± 0.6# | 9 | 45.9 ± 1.4 | 2.2 ± 0.1 | 0 | 16.8 ± 2.8 |
 Tr 3 | 9 | 61.8 ± 3.5# | 1.7 ± 0.1# | 2.0 ± 0.9# | 9 | 46.1 ± 1.1 | 2.2 ± 0.1 | 0 | 15.6 ± 2.6 |
 Tr 4 | 8 | 64.7 ± 4.2# | 1.6 ± 0.1# | 1.6 ± 0.5# | 7 | 45.3 ± 0.7 | 2.2 ± 0.0 | 0.1 ± 0.1 | 19.2 ± 4.5 |
Elderly subjects | |||||||||
 Tr 1 | 9 | 94.6 ± 4.9†,# | 1.1 ± 0.1†,# | 3.2 ± 0.6†,# | 9 | 63.2 ± 2.8†| 1.6 ± 0.1†| 0.1 ± 0.1 | 31.4 ± 3.2†|
 Tr 2 | 9 | 90.7 ± 4.4†,# | 1.1 ± 0.1†,# | 3.0 ± 0.9†,# | 9 | 59.6 ± 3.3†| 1.7 ± 0.1†| 0.1 ± 0.1 | 31.1 ± 2.3†|
 Tr 3 | 9 | 89.6 ± 4.4†,# | 1.1 ± 0.1†,# | 4.1 ± 0.9†,# | 9 | 58.2 ± 2.5†| 1.7 ± 0.1†| 0 | 31.4 ± 3.3†|
 Tr 4 | 9 | 84.2 ± 3.8†,# | 1.2 ± 0.1†,# | 2.2 ± 0.7†,# | 6 | 61.6 ± 4.5†| 1.7 ± 0.1†| 0.6 ± 0.4 | 26.8 ± 3.1†|