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    An increase in stimulus arousal has differential effects on the processing speed of pleasant and unpleasant stimuli

    Access Status
    Fulltext not available
    Authors
    Purkis, H.
    Lipp, Ottmar
    Edwards, M.
    Barnes, R.
    Date
    2009
    Type
    Journal Article
    
    Metadata
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    Citation
    Purkis, H. and Lipp, O. and Edwards, M. and Barnes, R. 2009. An increase in stimulus arousal has differential effects on the processing speed of pleasant and unpleasant stimuli. Motivation and Emotion. 33 (4): pp. 353-361.
    Source Title
    Motivation and Emotion
    DOI
    10.1007/s11031-009-9144-2
    ISSN
    0146-7239
    School
    School of Psychology and Speech Pathology
    URI
    http://hdl.handle.net/20.500.11937/33137
    Collection
    • Curtin Research Publications
    Abstract

    The arousal value of a stimulus influences its salience, whereby higher arousal should lead to faster processing. However, in previous research, participants consistently made faster valence judgments for low arousal, pleasant stimuli than for high arousal, pleasant stimuli. The speed of valence and arousal judgments for pictures and words were investigated in three experiments. Valence judgments were faster for low arousal than for high arousal pleasant pictures and for high arousal than for low arousal unpleasant pictures and words. Moreover, arousal judgments were faster for low arousal than high arousal pleasant and for high arousal than low arousal unpleasant pictures and words. The current research confirms that the impact of valence and arousal on processing speed does not reflect on the labels (valence versus arousal) used when recording speeded judgments. Similarly to valence, stimulus arousal interacts differentially with the evaluation of pleasant and unpleasant stimuli producing a processing advantage for high arousal, unpleasant stimuli but not high arousal, pleasant stimuli. © Springer Science+Business Media, LLC 2009.

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