Thank you. My more recent work has focused more on mental health constructs used to track clinical progress over time. The parts I like the most are more concerned with the activation of emotion systems than behavioral tendencies or personality.

I really like the Jaak Panksepp's affective neuroscience view of emotion systems and Paul Gilbert's work on social safeness as an often overlooked emotion system.

Interestingly, emotions can be measured and viewed very similarly to personality traits (really the propensity to experience a particular emotion) and in fact positive emotionality forms a subcomponent (sometimes called an 'aspect') of extroversion and negative emotionality more or less IS neuroticism.