Algorithm 1 The proposed algorithm for the umbrella review.
1.	Set the search query to: “fMRI”[Title/Abstract] OR “functional magnetic resonance”[Title/Abstract]) AND (“autism”[Title/Abstract] OR “ASD”[Title/Abstract] OR “autistic”[Title/Abstract])) AND (systematicreview[Filter])”
2.	Conduct a targeted search on Pubmed and Scopus using the search query from step 1.
3.	Select studies published in peer-reviewed journals that focus on the field
4.	For each study, evaluate the following parameters: N1: Is the rationale for the study in the introduction clear? N2: Is the design of the work appropriate? N3: Are the methods described clearly? N4: Are the results presented clearly? N5: Are the conclusions based and justified by results? N6: Did the authors disclose all the conflicts of interests?
5.	Assign a graded score to parameters N1–N5, ranging from 1 (minimum) to 5 (maximum).
6.	For parameter N6, assign a binary assessment of “Yes” or “No” to indicate if the authors disclosed all the conflicts of interest.
7.	Preselect studies that meet the following criteria: Parameter N6 must be “Yes”. Parameters N1–N5 must have a score greater than 3.
8.	Include the preselected studies in the overview.