Table 1.
Demographics, N-back working memory and encoding of recognition memory behavioral performance.
| Working Memory | ||||||
|---|---|---|---|---|---|---|
| Age | IQ | Handedness | Working Memory Test (2 Back) | Working Memory Test (2 Back) | ||
| Total N (males) |
Mean (sd) |
Mean (sd) |
Mean (sd) |
Mean (sd) |
Mean (sd) |
|
| % correct responses | reaction time (msec) | |||||
|
DRD2 | ||||||
| GG | 110(37♂) | 27.7 (±7.4) | 113.5 (±13.0) | 0.75 (±0.43) | 67.7 (±16.7) | 523.2 (±248.9) |
| GT | 32(19♂) | 28.4 (±7.9) | 111.4 (±14.7) | 0.73 (±0.32) | 69.4 (±15.7) | 499.7 (±246.0) |
|
DAT | ||||||
| 10/10 repeat | 51(21♂) | 28.6 (±7.1) | 115.7 (±10.8) | 0.70 (±0.43) | 70.2 (±15.4) | 517.0 (±254.8) |
| 9 repeat carriers | 91(35♂) | 27.4 (±7.6) | 111.6 (±14.4) | 0.76 (±0.38) | 66.9 (±17.0) | 518.1 (±244.7) |
|
DRD2-DAT | ||||||
| GG-10/10 repeat | 41(13♂) | 28.6 (±7.1) | 117.9 (±9.6) | 0.72 (±0.43) | 69.4 (±16.3) | 507.3 (±261.5) |
| GG-9 repeat carriers | 69(24♂) | 27.1 (±7.5) | 111.0 (±14.0) | 0.76 (±0.42) | 66.7 (±17.0) | 533.0 (±242.4) |
| GT-10/10 repeat | 10(8♂) | 28.4 (±7.6) | 107.0 (±11.5) | 0.62 (±0.43) | 73.2 (±11.3) | 553.9 (±235.4) |
| GT-9 repeat carriers | 22(11♂) | 28.4 (±8.2) | 114.1 (±15.6) | 0.78 (±0.25) | 67.6 (±17.3) | 473.3 (±252.2) |
| Recognition Memory | ||||||
|---|---|---|---|---|---|---|
| Age | IQ | Handedness | Recognition Memory Test (encoding) | Recognition Memory Test (encoding) | ||
| Total N (males) |
Mean (sd) |
Mean (sd) |
Mean (sd) |
Mean (sd) |
Mean (sd) |
|
| % correct responses | reaction time (msec) | |||||
|
DRD2 | ||||||
| GG | 82(23♂) | 26.2 (±5.9) | 112.6 (±11.4) | 0.7 (±0.47) | 94.8 (±3.9) | 1129.5 (±187.3) |
| GT | 20(9♂) | 26.5 (±5.8) | 112.5 (±12.2) | 0.7 (±0.36) | 92.5 (±5.5) | 1170.6 (±221.5) |
|
DAT | ||||||
| 10/10 repeat | 38(10♂) | 27.5 (±5.3) | 113.7 (±10.4) | 0.66 (±0.46) | 94.6 (±3.9) | 1140.4 (±192.2) |
| 9 repeat carriers | 64(22♂) | 25.6 (±6.1) | 112.1 (±12.0) | 0.73 (±0.44) | 94.2 (±4.6) | 1136.1 (±196.8) |
|
DRD2-DAT | ||||||
| GG-10/10 repeat | 33(7♂) | 27.0 (±5.6) | 114.5 (±9.7) | 0.62 (±0.49) | 94.7 (±3.9) | 1113.3 (±182.6) |
| GG-9 repeat carriers | 49(16♂) | 25.7 (±6.2) | 111.7 (±12.1) | 0.76 (±0.46) | 94.8 (±3.9) | 1140,0 (±191.7) |
| GT-10/10 repeat | 5(3♂) | 30.2 (±2.2) | 109.0 (±5.7) | 0.87 (±0.16) | 94.2 (±3.7) | 1303.3 (±183.1) |
| GT-9 repeat carriers | 15(6♂) | 25.5 (±6.0) | 113.2 (±11.9) | 0.70 (±0.39) | 92.0 (±6.0) | 1123.2 (±220.0) |