Clustering of antipsychotic-naïve patients with schizophrenia based on functional connectivity from resting-state electroencephalography.

"Declarations Conflict of interestBHE has received lecture fees and/or is part of Advisory Boards of Bristol-Myers Squibb, Eli Lilly and Company, Janssen-Cilag, Otsuka Pharma Scandinavia AB, Takeda Pharmaceutical Company, Boehringer Ingelheim, and Lundbeck Pharma A/S. BYG is the leader of a Lundbeck Foundation Centre of Excellence for Clinical Intervention and Neuropsychiatric Schizophrenia Research (CINS), which is partially financed by an independent grant from the Lundbeck Foundation based on international review and partially financed by the Mental Health Services in the Capital Region of Denmark, the University of Copenhagen, and other foundations. All grants are the property of the Mental Health Services in the Capital Region of Denmark and administrated by them. She has no other conflicts to disclose. NB is employed by H. Lundbeck A/S. KBB received lecture fee from Lundbeck Pharma A/S. The remaining authors have nothing to disclose. Ethical approvalThe studies were approved by the Regional Danish Committee on Health Research Ethics (H-D-2008-088, H-3-2013-149) and conducted in accordance with the ethical standards laid down in the 1964 Declaration of Helsinki and its later amendments. Informed consentAll participants provided written informed consent. Conflict of interest BHE has received lecture fees and/or is part of Advisory Boards of Bristol-Myers Squibb, Eli Lilly and Company, Janssen-Cilag, Otsuka Pharma Scandinavia AB, Takeda Pharmaceutical Company, Boehringer Ingelheim, and Lundbeck Pharma A/S. BYG is the leader of a Lundbeck Foundation Centre of Excellence for Clinical Intervention and Neuropsychiatric Schizophrenia Research (CINS), which is partially financed by an independent grant from the Lundbeck Foundation based on international review and partially financed by the Mental Health Services in the Capital Region of Denmark, the University of Copenhagen, and other foundations. All grants are the property of the Mental Health Services in the Capital Region of Denmark and administrated by them. She has no other conflicts to disclose. NB is employed by H. Lundbeck A/S. KBB received lecture fee from Lundbeck Pharma A/S. The remaining authors have nothing to disclose."

"Funding This study was supported by grants from the Lundbeck Foundation (ID: R25-A2701 and ID: R155-2013–16,337). EVD received funding from the Dutch Organization for Health Research and Development (ZonMW) Mental Health Program under Grant Agreement No. 60–63,600-98–711, and a UMC Utrecht Rudolf Magnus Fellowship. LKH was supported by the Danish Pioneer Centre for AI, DNRF grant number P1. "