In the early 1960s, the cognitive revolution in psychology involved a renewal of interest in the scientific study of:

Mental processes

Explanation:

The manner of approach to psychology started to experience change. It was around this time that the scientific study of human behavior bean the return to the its foundational and primary subject of mental processes. As such the focus was more than a focus on the behavioral aspect but also on the mental states and processes. The change was further enabled by the fields of computer science and neuroscience. The result was the emergence of the cognitive revolution, bringing about the awareness that cognition was essential for the comprehension of behavior.

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