“…Further, they found that the process of perceiving the fitness of a brand extension is a categorization process, and an ERP component, P300, could be considered as a measure of the perceived fitness (Ma, Wang, Shu, & Dai, 2008). In 2010, Ma and colleagues studied the influence of induced negative emotion on brand extension, which revealed that the amplitude of N2 could be viewed as a reference measure reflecting the effect of negative emotion on brand extension (Ma, Wang, Wang, Wang, & Wang, 2010). The experimental paradigms in all the above studies, however, were to sequentially present an original brand name and then (after a very short time) to present an extension product name (i.e., the paradigm of S1-S2).…”