Question: Before he began studying economics, what concept did Hayek come up with that was later featured in his 1952 book?
Sentence: Hayek's expansion of the "Hebbian synapse" construction into a global brain theory has received continued attention in neuroscience, cognitive science, computer science, behavioural science, and evolutionary psychology, by scientists such as Gerald Edelman, and Joaquin Fuster.
Answer in sentence: no