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Participants’ mean arousal and valence ratings (and standard deviations)
| Stimulus category | Valence (SD) | Arousal (SD) |
|---|---|---|
| Medium-shot snake | 3.95 (1.25) | 4.22 (2.11) |
| Close-up snake | 4.35 (1.66) | 4.07 (2.11) |
| Medium-shot spider | 3.21 (1.28) | 4.86 (2.22) |
| Close-up spider | 3.40 (1.69) | 5.47 (2.27) |
| Medium-shot bird | 6.41 (1.28) | 1.36 (.61) |
| Close-up bird | 6.32 (1.14) | 1.56 (.66) |
Valence and arousal ratings are based on a rating scale from 1 to 9
