Affective priming of semantic categorisation responses

Fazio, Sanbonmatsu Powell, & Kardes, (1986) demonstrated that less time is needed to affectively categorise a target as positive or negative when it is preceded by a prime with the same valence (e.g., summer-honest) compared to when the target is preceded by a prime with a different valence (e.g., cancer-honest). Such effects could be due to spreading of activation within a semantic network and/or to Stroop-like response conflicts. If a spreading of activation mechanism operates in priming tasks, primes should also facilitate nonaffective semantic processing of affectively congruent targets. In Experiment 1, we failed to observe affective priming when participants responded on the basis of whether the target referred to a person or animal. Experiment 2 revealed significant affective priming when participants responded on the basis of the valence of the targets but not when the semantic category of the targets (person or object) was relevant, despite the fact that apart from the task, both conditions were identical. The present results suggest that affective priming in the affective categorisation task is primarily due to the operation of a Stroop-like response conflict mechanism