Question 4 is fun to speculate about. He doesn't laugh. Doctor is all emotion. Kirk in between. We do not have these cues in literature.
Cognition depends on emotion .
Interpreters Donald, Origins of the Modern Mind , pp. Representation of a scene or episode Self-awareness, which leads to idea of interpreters. Three kinds of csness, leading to 3 kinds of self. Solms and the idea that there are 2 kinds of pcptn of mental activity. Feeling as what decides about a feedback.