Premium
Why Do Large Dogs Sound More Aggressive to Human Listeners: Acoustic Bases of Motivational Misattributions
Author(s) -
Taylor Anna M.,
Reby David,
McComb Karen
Publication year - 2010
Publication title -
ethology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.739
H-Index - 74
eISSN - 1439-0310
pISSN - 0179-1613
DOI - 10.1111/j.1439-0310.2010.01829.x
Subject(s) - perception , formant , psychology , affect (linguistics) , aggression , acoustics , audiology , communication , social psychology , speech recognition , computer science , physics , medicine , neuroscience , vowel
Previous research has highlighted that while human listeners are capable of estimating the body size of dogs using the acoustic components of their growls, they also rate growls from larger dogs as more being aggressive than growls from smaller dogs. The aim of this study was to investigate the relative contributions of two cues to body size, fundamental frequency ( F 0) and formant frequency dispersion (Δ f ) to perceived levels of aggression. We found that participants that had just made an accurate assessment of caller size based on these characteristics then misattributed aggressiveness levels on the basis of these same size‐related acoustic cues. More specifically, stimuli in which F 0 and/or Δ f were typical of larger dogs were rated as being more aggressive than stimuli typical of smaller dogs. Although both F 0 and Δ f influenced aggressiveness ratings independently, their interaction also had a significant affect. These results are discussed with respects to the human tendency to generalise reliable between‐class acoustic cues to within‐class stimuli and the resulting potential for making perceptual misattributions.