Table 1 The cell number (CN) and the mean contrast sensitivity (CS) value of V1 neurons with different preferred spatial frequencies (SFs) under two performance criteria (70.7% and 79.3%) before and after sham (s)- and cathode c-tDCS in the area 7 as well as some neurons before c-tDCS and after recovery from c-tDCS effect.
d′ | SFs | Before and after s-tDCS | Before and after c-tDCS | Before and after recovery | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
CN | CS pre | CS post | CN | CS pre | CS post | CN | CS pre | CS post | ||
d1′ | 0.1 | 13 | 11.3 ± 2.2 | 11.0 ± 2.5 | 15 | 11.1 ± 2.8 | 6.6 ± 2.8 | 10 | 12.1 ± 2.6 | 10.7 ± 2.3 |
0.2 | 15 | 16.1 ± 5.8 | 14.6 ± 4.4 | 14 | 15.0 ± 2.8 | 9.5 ± 3.0 | 8 | 15.0 ± 1.7 | 13.5 ± 2.6 | |
0.4 | 10 | 8.9 ± 3.2 | 10.9 ± 7.6 | 9 | 10.4 ± 2.8 | 5.8 ± 1.3 | 6 | 9.2 ± 2.5 | 8.9 ± 1.3 | |
0.6 | 6 | 4.7 ± 0.9 | 5.5 ± 1.5 | 5 | 8.2 ± 2.4 | 4.5 ± 1.0 | 3 | 8.1 ± 3.0 | 8.2 ± 1.2 | |
d2′ | 0.1 | 13 | 7.9 ± 1.4 | 8.8 ± 2.5 | 15 | 7.1 ± 1.5 | 4.4 ± 1.5 | 10 | 7.5 ± 1.2 | 6.8 ± 1.8 |
0.2 | 15 | 11.2 ± 4.5 | 11.9 ± 4.9 | 14 | 10.1 ± 2.4 | 6.3 ± 1.9 | 8 | 10.7 ± 2.4 | 9.4 ± 2.7 | |
0.4 | 10 | 6.3 ± 1.7 | 6.3 ± 1.6 | 9 | 7.9 ± 2.3 | 4.1 ± 0.8 | 6 | 6.9 ± 2.1 | 7.2 ± 1.4 | |
0.6 | 6 | 3.7 ± 0.8 | 3.5 ± 0.9 | 5 | 6.1 ± 2.1 | 3.4 ± 0.7 | 3 | 6.4 ± 2.5 | 6.0 ± 1.1 | |
