/7/ Lihat Rea Rodriguez-Raecke, Andreas Niemeier, Kristin Ihle, Wolfgang Reuther, Arne May, "Brain Gray Matter Decrease in Chronic Pain Is the Consequence and Not the Cause of Pain", The Journal of Neuroscience, 4 Nov 2009, vol. 29 (44), pp. 13746-13750.
/8/ Laporan ilmiah lengkap studi Nigel Blackwood dkk, lihat Sarah Gregory, Dominic Ffytche, Andrew Simmons,..., Nigel Blackwood, "The Antisocial Brain: Psychopathy Matters-- A Structural MRI Investigation of Antisocial Male Violent Offenders", Archives of General Psychiatry Journal, 2012, 69:9, hlm. 962-972.
Laporan populer tentang temuan Nigel Blackwoood dkk ini juga ada: Dina Spector, "Psychopaths Have Different Brain Than Normal People", Business Insider, 8 May 2012. Juga Kate Kelland, "Study finds psychopaths have distinct brain structure", Reuters, 7 May 2012.
/9/ Uraian selanjutnya disarikan dari Maria Konnikova, "Politics and Personality: Most of What You Read Is Malarkey", The New Yorker, 23 August 2016. Lihat juga Josh Hill, "Are You Conservative or Liberal? Your Political Preferences Might be Hard-Wired", The Daily Galaxy, 11 Feb 2008.
