Seeing it both ways: Openness to experience and binocular rivalry suppression

- Demonstrates personality and mood can impact low-level perceptual experiences.
- Mixed percept, a binocular rivalry state, positively correlated with openness.
- Findings were replicated across samples and response bias was excluded.
- Used a perceptual-aesthetic mood induction that increased mixed in open people.

Openness to experience is characterised by flexible and inclusive cognition. Here we investigated whether this extends to basic visual perception, such that open people combine information more flexibly, even at low-levels of perceptual processing. We used binocular rivalry, where the brain alternates between perceptual solutions and times where neither solution is fully suppressed, mixed percept. Study 1 showed that openness is positively associated with duration of mixed percept and ruled out the possibility of response bias. Study 2 showed that mixed percept increased following a positive mood induction particularly for open people. Overall, the results showed that openness is linked to differences in low-level visual perceptual experience. Further studies should investigate whether this may be driven by common neural processes.