The Role of Decision Biases in Semantic Priming Effects
Abstract
At least a part of semantic priming effects observed in binary decision tasks is supposed to be caused by decision biases. A semantic relationship between prime and target could positively bias a “yes” response, whereas the absence of a relationship would instead favour a “no” response to the same target. We tested this assumption with a semantic categorization task in which participants were induced to associate different values - positive, negative, or neutral - to each of the categorization decisions. Although semantic priming effects were obtained even with negatively valued decisions, they were substantially enhanced with positively valued decisions, confirming the influence of a decision bias induced presumptively by a post-lexical relatedness judgement.
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