Table 2 Electromyographically recorded startle eyeblink responses at baseline (no pre-pulse presented) and following presentations of subtle acoustic pre-pulses at 120- and 480-ms lead intervals
|  | 22q11DS (n = 17) | HC group (n = 19) | ||
|---|---|---|---|---|
| Â | Â | %PPI or %PPF | Â | %PPI or %PPF |
Passive listening task | Â | Â | Â | Â |
  Baseline startle | 111.98 (±73.07) μV |  | 133.2 (±117.3) μV |  |
  120-ms pre-pulse | 87.08 (±65.25) μV | 22.8 (±5.6) | 109.3 (±103.8) μV | 17.1 (±8.3) |
  480-ms pre-pulse | 136.08 (±81.6) μV | -24.4 (±11.7) | 131.2 (±100.8) μV | -3.1 (±8.5) |
Active discrimination task | Â | Â | Â | Â |
  Baseline startle | 94.9 (±69.1) μV |  | 104.9 (±72.6) μV |  |
  120-ms pre-pulse | 73.7 (±61.0) μV | 15.5 (±11.9) | 68.6 (±53.1) μV | 34.1 (±5.4) |
  480-ms pre-pulse | 99.0 (±84.7) μV | -12.8 (±18.3) | 114.2 (±86.2) μV | -23.3 (14.0) |