Table 3.
Mean reaction times and median error rates per participant group and per presentation number within category in the blocked cyclic picture naming paradigm. Standard deviations (for reaction times) and interquartile ranges (for error rates) are in brackets.
| Reaction times (in msec) | |||||||
|---|---|---|---|---|---|---|---|
| Presentation # | |||||||
| 2 | 3 | 4 | 5 | 6 | Average | ||
| Left PFC patients | HOM | 824 (67) | 829 (77) | 844 (81) | 836 (64) | 863 (63) | 838 (140) |
| HET | 788 (53) | 800 (63) | 774 (52) | 771 (59) | 782 (63) | 783 (115) | |
| Aged-matched controls |
HOM | 831 (49) | 827 (47) | 814 (53) | 828 (60) | 822 (53) | 824 (102) |
| HET | 783 (42) | 782 (51) | 767 (47) | 763 (54) | 760 (55) | 771 (97) | |
| Error rates (in %) | |||||||
| Presentation # | |||||||
| 2 | 3 | 4 | 5 | 6 | Median | ||
| Left PFC patients | HOM | 32 (19–42) |
22 (13–32) |
26 (23–30) |
26 (20–31) |
22 (18–24) |
25 (17–33) |
| HET | 17 (6–25) |
11 (11–15) |
8 (8–10) |
8 (6–10) |
11 (4–16) |
10 (6–17) |
|
| Aged-matched controls |
HOM | 7 (3–13) | 6 (3–10) | 8 (3–13) | 10 (1–14) | 7 (1–13) | 8 (3–14) |
| HET | 7 (1–8) | 6 (1–6) | 3 (3–8) | 4 (1–6) | 1 (0–8) | 4 (0–8) | |