Crespi Francesco, On the Role of Cholecystokinin (CCK) in Fear and Anxiety: A Review and Research Proposal, Journal of Human Psychology, Volume 1, Issue 2, 2019, Pages 1-10, ISSN 2644-1101, https://doi.org/10.14302/issn.2644-1101.jhp-19-2766. (http://oap-journals.orgjhp/article/1094) Keywords: Cholecystokinin; amygdala; fear and anxiety; in vivo electrochemistry; in vivo electrophysiology