“…Further, in the post conditioning phase CS alone can prompt the response (Rossiter and Percy, 1980). Previously, classical conditioning theory was considered for advertising research by several studies (Amirshahi et al, 2019;Stach, 2017;Vredenburg et al, 2015;Pornpitakpan, 2012;Smith et al, 1998;Gresham and Shimp, 1985;Rossiter and Percy, 1980). In this study, conditioning process included advertising puffery and celebrity trustworthiness as UCS, whereas advertising and the product were considered as CS that further produces attitude toward advertising and purchase intent for the product.…”