期刊
EVOLUTION AND HUMAN BEHAVIOR
卷 28, 期 5, 页码 340-344出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.evolhumbehav.2007.05.002
关键词
formant frequency; fundamental frequency; dominance; intrasexual competition; sexual selection; voice pitch
Men's vocal folds and vocal tracts are longer than those of women, resulting in lower fundamental frequency (F-o) and closer spacing of formant frequencies (formant dispersion, D-f) in men than in women. The evolutionary reasons for these sex differences are uncertain, but some evidence implicates male dominance competition. Previous manipulations of F-0 and D-f affected perceptions of dominance among men. However, because these acoustic dimensions were manipulated simultaneously, their relative contributions are unclear. In unscripted recordings of men speaking to a competitor, we manipulated F-0 and Df independently and by similar perceptual amounts to examine effects on social and physical dominance ratings. Recordings lowered in either Fo or Df were perceived as being produced by more dominant men than were the respective raised recordings. Df had a greater effect than did Fo, and both Df and Fo tended to affect physical dominance more than social dominance, although this difference was significant only for Df. (C) 2007 Elsevier Inc. All rights reserved.
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