sentences:  These states were linked to the dysregulation in opioid receptor systems and are commonly known as temperament traits  The examples are dispositional dysphoria, irritability, withdrawal, or dispositional good and relaxed moods.These dispositions create emotional biases in cognition.Studies of meaning attribution in 24 groups contrasted by various temperament traits showed that people with high neuroticism, high emotionality and weak endurance perceived neutral abstract concepts more negatively than people with low neuroticism and strong endurance.