Commentary on the paper "The heartbeat evoked potential is a questionable biomarker in nightmare disorder: A replication study. By Bogdany, T., Perakakis, P., Bodizs, R., Simor, P., 2021. Neuroimage Clin 33, 102933".
Neuroimage Clin September 19, 2022
This commentary critically examines a replication study on nightmare disorder and the heartbeat evoked potential (HEP). It contends that the original study's negative findings may stem from methodological limitations rather than definitively disproving HEP's utility as a biomarker. The authors argue that the replication attempt, while valuable, does not conclusively rule out a role for HEP in nightmare disorder due to issues such as sample characteristics and analytical choices. They propose that further research with refined methods is needed before dismissing HEP as a biomarker.