Hebb's speculations regarding how cell assemblies and phase sequences develop has led to a new research area called:

Connectionism

Explanation:

Connectionism is a specific philosophy applicable to machine learning and other developments in technology; it perceives the human mind to be connected to complex networks of interconnection.

Several link the term to data scientist Donald Hebbs who was prominent in the 1940s.

Connectionism claims that very complicated behavioral and emotional behavior can be explained by evaluating, as a main instance, cells in the brain, the complicated interaction of simple units.