Two experiments explore the validity of conceptualizing musical beats as auditory structural features and the potential for increases in tempo to lead to greater sympathetic arousal, measured using skin conductance. In the first experiment, fast-and slow-paced rock and classical music excerpts were compared to silence. As expected, skin conductance response (SCR) frequency was greater during music processing than during silence. Skin conductance level (SCL) data showed that fast-paced music elicits greater activation than slow-paced music. Genre significantly interacted with tempo in SCR frequency, with faster tempo increasing activation for classical music while decreasing it for rock music. A second experiment was conducted to explore the possibility that the presumed familiarity of the genre led to this interaction. Although further evidence was found for conceptualizing musical beat onsets as auditory structure, the familiarity explanation was not supported.
Music Effects on Arousal -2 Effects of Music Genre and Tempo on Physiological ArousalMusic communicates many different types of messages through the combination of sound and lyric (Sellnow & Sellnow, 2001). For example, music can be used to exchange political information (e.g., Frith, 1981;Stewart, Smith, & Denton, 1989).Music can also establish and portray a self-or group-image (Arnett, 1991(Arnett, , 1992Dehyle, 1998;Kendall & Carterette, 1990;Dillman Carpentier, Knobloch & Zillmann, 2003;Manuel, 1991;McLeod, 1999; see also Hansen & Hansen, 2000). Pertinent to this investigation, music can communicate emotional information (e.g., Juslin & Sloboda, 2001). In short, music is a form of "interhuman communication in which humanly organized, non-verbal sound is perceived as vehiculating primarily affective (emotional) and/or gestural (corporeal) patterns of cognition" (Tagg, 2002, p. 5).This idea of music as communication reaches the likes of audio production students, who are taught the concept of musical underscoring, or adding music to "enhance information or emotional content" in a wide variety of ways from establishing a specific locale to intensifying action (Alten, 2005, p. 360). In this realm, music becomes a key instrument in augmenting or punctuating a given message. Given the importance of arousal and/or activation in most theories of persuasion and information processing, an understanding of how music can be harnessed to instill arousal is arguably of benefit to media producers looking to utilize every possible tool when creating messages, whether the messages are commercial appeals, promotional announcements or disease-prevention messages. It is with the motivation of harnessing the psychological response to music for practical application that two experiments were conducted to test whether message creators can rely on musical tempo as a way to increase sympathetic nervous system Music Effects on Arousal -3 activation in a manner similar to other structural features of media (i.e., cuts, edits, sound effects, voice changes). Before ex...