Table 1.
Spearman correlations between fear behavior outcomes at 1 year of age.
| Facial fear | Vocal distress | Bodily fear | Startle | Escape behavior | Wariness | IBQ-R fear | |
|---|---|---|---|---|---|---|---|
| Facial fear | — | 0.98 | 0.87 | 0.80 | 0.52 | −0.04 | 0.05 |
| Vocal distress | — | — | 0.88 | 0.80 | 0.59 | −0.01 | 0.13 |
| Bodily fear | — | — | — | 0.71 | 0.56 | 0.10 | −0.08 |
| Startle | — | — | — | — | 0.32 | −0.03 | 0.01 |
| Escape behavior | — | — | — | — | — | −0.08 | 0.26 |
| Wariness | — | — | — | — | — | — | 0.04 |
| IBQ-R fear | — | — | — | — | — | — | — |
Facial fear, vocal distress, bodily fear, startle, and escape behavior are measured during the Mask Task. Wariness is measured during the Strange Situation Paradigm. The IBQ-R scale is a parent report questionnaire measure, the fear subscale was used. Bold formatting denotes correlations with p < 0.05. Vocal distress and facial fear (p = 1.104e–13), bodily fear and facial fear (p = 6.763e–07), bodily fear and vocal distress (p = 3.356e–07), startle and facial fear (p = 2.243e–05), startle and vocal distress (p = 2.785e–05), startle and bodily fear (p = 0.0004), escape behavior and facial fear (p = 0.017), escape behavior and vocal distress (p = 0.006), escape behavior and bodily fear (p = 0.01). Source data for this table are provided as a Source Data file.