What is the fine-grained topic of the following text: 2] As part of this scientific reorientation, there is a growing body of work focused on populations at 'clinical high risk' for psychoses and on adolescents and young adults in the putative prodromal phase of a first psychotic episode--at which time there is illness-related deterioration in the functioning of the brain and in neurocognitive, social and role functioning. Only return the topic.
Research on early identification of psychosis in high-risk populations