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. 2026 Jan 9;19:1690499. doi: 10.3389/fnbeh.2025.1690499

Figure 1.

Flowchart of a systematic review process with sections: Identification, Screening, and Included. Initially, 123 records identified from databases and registers, with 35 duplicates removed. Out of 120 screened records, 85 excluded. From 35 reports sought, none were not retrieved. Thirty-five assessed for eligibility, with 27 reports excluded due to lacks like direct flow state measurement, no neuroimaging data, or indirect inferences. Nine studies included in the review.

Study selection process. * indicates that records identified from databases and registers might include the same studies. ** indicates that exclusions occurred at the screening stage.