There may be a link between the cold, callous personality traits associated with psychopaths and sense of smell, according to a new study.
The research, published in the journal Chemosensory Perception, showed that people who scored high on a test of psychopathy also had more problems with being able to tell different smells apart, not to mention identifying smells.
The study included 79 adults who didn't have a criminal background. The researchers conducted a number of experiments to test their ability to smell and tell smells apart, and also had them take a test that measured their levels of psychopathic traits like callousness, manipulation, the urge to commit criminal acts, and leading an erratic lifestyle.
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