Personality and temperament traits are stable representations of emotional, motor and attentional reactivity to stimulation, as manifested by an organized pattern of behavioral responses across a range of contexts.1 The assessment of personality and temperament measures in human populations is therefore a major component of efforts to correlate higher order behaviors with underlying biology. Two common models for assessing personality include the five factor model of personality (FFM)2 and the temperament and character inventory (TCI).3, 4
