Table 3.
Mean values and standard deviations (SDs; in parentheses) of the evaluated amplitudes and latencies for the three groups (Control, sdaMCI, mdaMCI) in the three conditions (S, D, N), at the Fz, Cz, and Pz locations
| Control | sdaMCI | mdaMCI | |||||||
| Fz | Cz | Pz | Fz | Cz | Pz | Fz | Cz | Pz | |
| Amp Go-N2 | |||||||||
| S | –5.5 (5.7) | –10.4 (8.4) | –8.2 (6.9) | –3.1 (3.5) | –5.5 (4.9) | –4.7 (4.7) | –3.2 (3.6) | –6.4 (4.2) | –5.1 (4.5) |
| D | –6.6 (6.5) | –12.3 (8.7) | –9.8 (7.5) | –3.2 (4.3) | –5.3 (6.1) | –5.2 (5.7) | –4.3 (3.4) | –8.3 (3.7) | –6.7 (5.2) |
| N | –5.4 (7.5) | –10.4 (10.6) | –8.4 (8.9) | –3.0 (4.1) | –4.7 (5.2) | –4.4 (5.1) | –4.3 (5.0) | –7.3 (5.0) | –5.8 (4.8) |
| Amp Go-P3 | |||||||||
| S | 5.9 (7.1) | 2.7 (8.6) | 5.1 (8.0) | 6.2 (4.4) | 5.5 (5.8) | 7.5 (4.9) | 6.8 (6.9) | 4.1 (7.1) | 6.0 (7.2) |
| D | 7.0 (8.5) | 3.8 (10.0) | 6.7 (9.7) | 8.5 (4.9) | 7.6 (6.5) | 8.6 (6.6) | 9.3 (6.6) | 6.6 (6.8) | 8.5 (7.4) |
| N | 8.0 (8.3) | 5.4 (10.5) | 8.0 (9.8) | 7.3 (4.8) | 6.9 (6.7) | 8.0 (6.5) | 9.5 (8.9) | 7.3 (8.5) | 7.7 (8.2) |
| Amp NoGo-N2 | |||||||||
| S | –4.6 (4.8) | –7.0 (7.0) | –5.4 (6.6) | –3.3 (2.4) | –3.8 (3.4) | –3.7 (4.3) | –3.2 (2.2) | –4.1 (2.8) | –1.8 (3.8) |
| D | –4.7 (6.5) | –7.5 (8.7) | –5.5 (8.3) | –4.6 (3.8) | –4.8 (3.7) | –4.2 (3.6) | –5.8 (4.2) | –6.7 (4.8) | –4.9 (4.7) |
| N | –5.7 (4.4) | –8.1 (8.4) | –6.1 (8.0) | –1.8 (3.8) | –2.1 (4.3) | –2.7 (3.4) | –0.4 (2.1) | 0.3 (4.8) | 1.3 (5.8) |
| Amp NoGo-P3 | |||||||||
| S | 9.1 (6.3) | 10.4 (6.3) | 7.9 (5.8) | 8.8 (5.1) | 10.7 (5.4) | 8.7 (4.6) | 12.3 (8.1) | 12.0 (8.6) | 10.6 (8.3) |
| D | 11.6 (7.2) | 12.7 (8.1) | 10.6 (8.5) | 11.2 (6.2) | 13.5 (6.9) | 11.3 (6.1) | 12.5 (8.1) | 13.4 (8.5) | 12.6 (9.1) |
| N | 9.0 (4.0) | 11.5 (4.9) | 9.2 (4.2) | 10.4 (6.0) | 12.3 (6.3) | 10.0 (5.4) | 14.3 (10.2) | 15.7 (11.6) | 14.2 (11.0) |
| Amp PSW W1 (700–800 ms) | |||||||||
| S | 0.4 (5.6) | –1.3 (6.6) | 0.2 (6.9) | 2.5 (3.1) | 3.3 (4.1) | 4.3 (4.0) | –0.5 (6.3) | –1.6 (6.7) | 0.2 (7.1) |
| D | 0.4 (6.0) | –1.6 (7.4) | 0.0 (7.4) | 3.3 (3.1) | 4.4 (4.2) | 4.7 (4.1) | –0.8 (7.2) | –2.8 (8.4) | –0.8 (9.0) |
| N | 1.2 (7.5) | –0.9 (9.4) | 0.7 (9.0) | 2.5 (4.1) | 3.5 (5.8) | 5.0 (5.6) | 0.5 (6.2) | –0.6 (6.6) | 1.3 (6.3) |
| Amp PSW W2 (800–900 ms) | |||||||||
| S | 0.0 (4.6) | –1.5 (5.3) | –1.0 (5.7) | 2.2 (2.9) | 2.9 (3.6) | 2.9 (4.1) | –0.9 (6.2) | –1.6 (6.0) | 0.0 (6.0) |
| D | –0.1 (5.2) | –1.8 (5.7) | –1.1 (5.7) | 2.8 (2.7) | 3.7 (3.7) | 3.3 (4.3) | –1.6 (7.7) | –3.4 (7.8) | –1.6 (8.1) |
| N | 0.8 (7.4) | –1.0 (8.5) | –0.6 (8.4) | 2.2 (4.0) | 3.4 (5.6) | 3.8 (6.0) | –0.1 (5.7) | –0.8 (5.1) | 0.7 (4.9) |
| Amp PSW W3 (900–1000 ms) | |||||||||
| S | –0.6 (4.5) | –1.4 (5.2) | –1.8 (5.7) | 1.4 (3.2) | 2.0 (3.8) | 1.9 (4.3) | –1.2 (5.6) | –1.3 (5.3) | –0.5 (4.7) |
| D | –0.3 (4.5) | –2.0 (5.4) | –2.0 (5.5) | 2.1 (2.9) | 2.9 (3.8) | 2.5 (4.2) | –1.5 (6.5) | –2.8 (6.8) | –1.6 (7.0) |
| N | –0.3 (6.4) | –1.4 (7.6) | –1.7 (7.6) | 1.8 (4.8) | 2.7 (5.4) | 2.5 (5.6) | 0.8 (5.0) | 0.8 (5.1) | 2.1 (4.8) |
| Lat Go-N2 | |||||||||
| S | 290 (45) | 307 (50) | 304 (47) | 316 (50) | 318 (58) | 320 (62) | 334 (25) | 347 (23) | 355 (32) |
| D | 299 (51) | 307 (57) | 307 (59) | 310 (51) | 318 (52) | 317 (53) | 317 (44) | 331 (39) | 340 (38) |
| N | 322 (85) | 338 (84) | 338 (92) | 319 (41) | 337 (42) | 334 (47) | 338 (44) | 357 (34) | 356 (34) |
| Lat Go-P3 | |||||||||
| S | 498 (80) | 530 (101) | 557 (86) | 423 (261) | 564 (111) | 597 (108) | 510 (43) | 508 (58) | 526 (60) |
| D | 488 (58) | 541 (88) | 554 (62) | 534 (89) | 546 (95) | 580 (90) | 527 (34) | 544 (32) | 551 (34) |
| N | 497 (64) | 493 (198) | 555 (92) | 527 (105) | 443 (231) | 562 (122) | 531 (67) | 542 (72) | 547 (74) |
| Lat NoGo-N2 | |||||||||
| S | 261 (45) | 264 (52) | 275 (53) | 284 (57) | 274 (57) | 286 (66) | 267 (52) | 275 (53) | 285 (60) |
| D | 264 (49) | 261 (53) | 268 (63) | 297 (50) | 296 (56) | 305 (53) | 269 (52) | 280 (56) | 281 (62) |
| N | 284 (49) | 275 (55) | 285 (57) | 300 (66) | 297 (50) | 301 (67) | 298 (50) | 312 (57) | 299 (56) |
| Lat NoGo-P3 | |||||||||
| S | 482 (62) | 484 (79) | 498 (93) | 519 (80) | 513 (81) | 533 (78) | 491 (57) | 471 (40) | 489 (64) |
| D | 488 (42) | 501 (73) | 512 (82) | 484 (64) | 502 (73) | 517 (78) | 474 (52) | 468 (43) | 472 (49) |
| N | 485 (65) | 486 (63) | 479 (77) | 497 (66) | 504 (64) | 527 (79) | 484 (39) | 482 (44) | 480 (47) |
S, Standard; D, Deviant; N, Novel; Amp, amplitude; Lat, latency; W1, first window; W2, second window; W3, third window. Amplitudes: expressed in microvolts, upper panel. Latencies: expressed in milliseconds, from the presentation of the visual stimulus, lower panel.