Answer:
William James.
Step-by-step explanation:
William James is one of the founding fathers of Psychology. William James is not just only a Psychologist but also he was a philosopher. One of the theories William James proposed was the Functionalism or say the Williams James' theory of consciousness which explains how consciousness affect people in their habitat. Other works of William James were on the mechanism of dizziness and pragmatism.
Daria mind wandering off is the kind of consciousness that was proposed by William James.