Answer:
William James.
Explanation:
As the exercise suggests, the description of Daria's consiousness is similar to the one proposed by William James as he was the one to describe the "flow" through the mind as a stream, very much like what Daria is doing: her mind wanders from topic to topic, her thoughts interweaving and overtaking each other like currents of flowing water. This theory, more of a metaphor actually, compares the mind as a flow of water in a stream, which is in turn affected by or calm or anxiety, causing that flow to be fast moving or not.
