SOURCE: BBC
It may be possible to read a person's personality through their eyes, Swedish researchers have said.
They have detected patterns which show warm-heartedness and trust or neuroticism and impulsiveness.
The team from Orebro University read pits and lines in the irises of 428 people.
Experts said the study in Biological Psychology showed that at least some aspects of personality were determined by genetics.
Close-up pictures were taken of the study participants' irises, and they also filled out a questionnaire about their personalities.
The researchers looked at crypts (pits) and contraction furrows (lines curving around the outer edge of the iris), which are formed when pupils dilate.
It was found that those with more crypts were likely to be tender, warm and trusting, while those with more furrows were more likely to be neurotic, impulsive and give in to cravings.
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