Final answer:
Neuroscience is the most focused-upon perspective in contemporary research, gaining prominence with the cognitive revolution that redirected attention back to mental processes after the behaviorism era.
Step-by-step explanation:
The focus of more research today than any other perspective is neuroscience. Neuroscience deals with the study of the nervous system, which includes the brain and the neurological processes that underpin our thoughts, emotions, and behaviors. It has become increasingly influential due to the cognitive revolution, which brought about a renewed interest in the study of mental processes. The cognitive revolution was a response to the limitations of behaviorism, which had primarily emphasized observable behavior to the exclusion of mental processes, and psychoanalysis, which focused on unconscious influences. The emergence of neuroscience has significantly contributed to our understanding of cognitive processes and has become a central area of research in contemporary psychology.