Table 1.
Smile Stimuli Utilized in Studies 1 and 2: Type, Length, and Intensity Ratings of Younger and Older Adult Target Smiles as Rated by Younger and Older Adult Judges
| Smile | Type | Length (s) | YA judge M intensity (SD) |
OA judge M intensity (SD) |
All judges M intensity |
|---|---|---|---|---|---|
| Younger adult target smiles | |||||
| 1 | Spontaneous | 3.74 | 6.33 (0.98) | 5.69 (1.75) | 6.00 (1.44) |
| 2 | Spontaneous | 4.60 | 4.69 (1.44) | 3.58 (1.68) | 4.16 (1.62) |
| 3 | Spontaneous | 5.80 | 4.69 (1.32) | 4.50 (1.88) | 4.60 (1.58) |
| 4 | Spontaneous | 2.60 | 3.54 (0.88) | 3.46 (1.45) | 3.50 (1.17) |
| 5 | Posed | 2.20 | 2.08 (0.86) | 2.00 (1.77) | 2.04 (1.37) |
| 6 | Posed | 3.60 | 3.00 (1.53) | 2.38 (1.85) | 2.69 (1.69) |
| 7 | Posed | 3.60 | 5.46 (1.33) | 4.92 (1.51) | 5.20 (1.41) |
| 8 | Spontaneous | 3.54 | 2.54 (1.05) | 2.08 (0.86) | 2.31 (0.97) |
| 9 | Posed | 4.47 | 3.38 (0.96) | 3.62 (1.66) | 3.50 (1.33) |
| 10 | Spontaneous | 1.60 | 3.62 (1.04) | 1.77 (0.73) | 2.69 (1.29) |
| 11 | Spontaneous | 3.27 | 4.46 (1.76) | 5.38 (1.50) | 4.92 (1.67) |
| 12 | Posed | 2.27 | 1.50 (0.52) | 1.62 (0.87) | 1.56 (0.71) |
| 13 | Spontaneous | 4.87 | 5.00 (1.22) | 4.54 (1.45) | 4.77 (1.33) |
|
| |||||
| Older adult target smiles | |||||
| 1 | Posed | 1.42 | 1.85 (1.52) | 1.42 (0.67) | 1.64 (1.19) |
| 2 | Posed | 1.13 | 2.77 (1.30) | 2.92 (1.19) | 2.85 (1.22) |
| 3 | Spontaneous | 4.07 | 4.38 (2.10) | 3.62 (1.33) | 4.00 (1.77) |
| 4 | Posed | 3.38 | 4.42 (1.78) | 3.69 (1.60) | 4.04 (1.70) |
| 5 | Spontaneous | 3.12 | 2.85 (0.80) | 2.15 (1.41) | 2.50 (1.17) |
| 6 | Posed | 1.02 | 3.23 (1.64) | 2.31 (1.25) | 2.77 (1.50) |
| 7 | Spontaneous | 2.45 | 3.62 (0.96) | 4.17 (1.64) | 3.88 (1.33) |
| 8 | Spontaneous | 3.12 | 3.42 (1.00) | 2.58 (1.24) | 3.00 (1.18) |
| 9 | Posed | 1.37 | 3.08 (1.55) | 2.83 (1.11) | 2.96 (1.34) |
| 10 | Spontaneous | 2.43 | 2.62 (1.26) | 2.46 (1.56) | 2.54 (1.39) |
| 11 | Spontaneous | 2.47 | 3.69 (1.25) | 4.17 (1.64) | 3.92 (1.44) |
Note. YA = younger adult, OA = older adult. n = 6 for YA judges rating YA smile intensity (Study 1). n = 13 for YA judges rating OA smile intensity (Study 2). n = 15 for OA judges rating both YA and OA smile intensity (Study 2). Study 1 presented younger adult target smiles only (in the order presented in table). In Study 2, the smile presentation was randomized among smile type and target age; all participants viewed the same random order presentation of smiles.