“…First, attention has not been easy to account for in some previous studies (Shapiro, MacInnis, Heckler, & Perez, 1999), in that subjects could have attended to the ads, but the same effect surfaced because the stimuli were not interesting (as suggested above). Second, advertising screening and memory without recall are common in real life (Krugman, 1986(Krugman, , 1988, and in the increasing advertising clutter (Ha & Litman, 1997;Shapiro, MacInnis, Heckler, & Perez, 1999) it is important to adjust to consumers' limited attention spans.…”