Answer;
Wundt; introspection
Describing the experience of a snowflake melting on one's tongue as "cold . . . Wet . . . Tingly . . . Slightly metallic in taste" echoes Wundt's method of introspection.
Step-by-step explanation;
The pioneering psychologist Wilhelm Wundt used a method called introspection to enable subjects to examine their own mental processes. introspection is used to describe a research technique that was first developed by psychologist Wilhelm Wundt.
Introspection is the examination of one's own conscious thoughts and feelings. In psychology, the process of introspection relies exclusively on observation of one's mental state, while in a spiritual context it may refer to the examination of one's soul.