“…According to these three levels of processing, the associative learning of the verbal (word forms) and nonverbal stimuli (referents) would be essential to learn real words. Previous studies have reported that word forms can be associated with referents or with words already associated with referents through associative learning, in which participants learned associative pairs of a word form and referent(s), including pictures or sounds (Paivio and Csapo, 1973;Cornelissen et al, 2004;Breitenstein et al, 2005;HultĂ©n et al, 2009;Tsukiura et al, 2010;Tsukiura et al, 2011;Kambara et al, 2013;Takashima et al, 2014;Ferreira et al, 2015;Grönholm et al, 2015;Hawkins et al, 2015;Hawkins and Rastle, 2016;Takashima et al, 2017;Havas et al, 2018;Li et al, 2020;Horinouchi et al, under review;Yan et al, under review;Yang et al, under review) or lexical conditioning (researchers also call the conditioning classical, semantic, or evaluative), in which participants generalize the referents (evaluative responses; e.g., positive and negative meanings) of real words to referents of pseudowords, real words, or symbols (Razran, 1939;Staats and Staats, 1957;Staats and Staats, 1958;Staats et al, 1959a;Staats et al, 1959b;Staats et al, 1961;Paivio, 1964;Cicero and Tryon, 1989;Tryon and Cicero, 1989;Till and Priluck, 2001;Hughes et al, 2018). In the associative learning of word forms in a first language (L1) or a second language (L2) and referents, differences between modalities of referents could affect task performance in the test phase (Lee et al, 2003;Jeong et al, 2010;Carpen...…”