Table 1.
Descriptive statistics for infant and mother mean heart period, skin conductance levels, and respiratory sinus arrhythmia at baseline and in each episode of the FFSF
| Baseline | Normal Play | Still-Face | Reunion | |||||
|---|---|---|---|---|---|---|---|---|
| N | M (SD) | N | M (SD) | N | M (SD) | N | M (SD) | |
| Infant HP (msec) | 135 | 433.69 (33.46) | 120 | 436.52 (34.16) | 116 | 414.43 (35.71) | 102 | 415.90 (37.95) |
| Mother HP (msec) | 138 | 728.35 (103.19) | 129 | 683.05 (97.42) | 128 | 763.93 (111.50) | 117 | 685.77 (89.00) |
| Infant SC (uS) | 84 | 9.27 (7.04) | 71 | 13.13 (8.91) | 68 | 14.31 (9.05) | 59 | 16.52 (10.04) |
| Mother SC (uS) | 73 | 7.22 (5.05) | 79 | 11.49 (7.21) | 75 | 11.20 (7.23) | 72 | 12.59 (8.08) |
| Infant RSA (msec2) | 135 | 3.18 (.85) | 118 | 3.87 (1.15) | 109 | 3.85 (1.13) | 95 | 3.79 (1.19) |
| Mother RSA (msec2) | 136 | 5.86 (1.04) | 124 | 5.75 (1.27) | 127 | 5.63 (1.08) | 116 | 5.47 (.97) |
Note. SC = mean skin conductance level; RSA = respiratory sinus arrhythmia; HP = heart period.