The left side of the face is generally considered more attractive.
The Left Side Advantage
Research indicates that the left side of the face is typically perceived as more aesthetically pleasing than the right side. This preference applies to both male and female faces, according to studies using poser photos. This finding is not just based on subjective opinions, but is also supported by objective measures.
Confirmation through Pupil Dilation
Interestingly, these preferences have been confirmed by observing pupil dilation. Pupil size is an involuntary response; pupils dilate when we see something interesting or appealing, and constrict when exposed to unpleasant imagery. Studies show that our pupils dilate more when looking at the left side of a face, indicating a greater level of interest or attraction.
Summary of Findings
| Aspect | Result |
|---|---|
| Perceived Attractiveness | Left side of the face is generally rated more attractive. |
| Physiological Response | Pupils dilate more when viewing the left side of a face. |
| Gender Applicability | This preference is consistent for both males and females. |
Why the Left Side?
While the exact reason is still being explored, it's suggested that this preference may be related to the right hemisphere of the brain, which is more associated with emotional processing and facial recognition. The right hemisphere receives primary visual input from the left side of the visual field, and by extension, the left side of a face. This stronger neural connection may lead to increased favorability towards the left side of the face.
