Familial recurrence is not independent replication
The claim links abnormal temporal variability organization with verbal memory and psychotic symptoms in schizophrenia patients and their first-degree relatives. Similarity across relatives may support familial aggregation, but it does not provide independent replication because relatives share genetic background and often environmental factors. Replication would require an unrelated cohort with compatible imaging features, cognitive measures, and symptom definitions, plus a prespecified direction of effect. An ancestry-specific analysis would also show whether the association generalizes beyond the discovery population.
