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- 4Christopher B. Sturdy
- 4Jenna V. Congdon
- 3Allison H. Hahn
- 3Neil McMillan
- 2Erin N. Scully
- 2John Hoang
- 1Acoustic discrimination
- 1Animal behaviour
- 1Auditory perception
- 1Behavioral flexibility
Category perception, as Herrnstein (1990) defined it, is a powerful and pervasive cognitive ability possessed by every species in which it has been adequately tested. We have studied category perception of vocal communication signals in songbirds for over 20 years. Our first studies provided us...
Humans recognize emotional arousal in vocalizations across all classes of terrestrial vertebrates: Evidence for acoustic universalsDownload
Piera Filippi, Jenna V. Congdon, John Hoang, Daniel L. Bowling, Stephan A. Reber, Andrius Pasukonis, Marisa Hoeschele, Sebastian Ocklenburg, Bart de Boer, Christopher B. Sturdy, Albert Newen, Onur Gunturkun
Writing over a century ago, Darwin hypothesized that vocal expression of emotion dates back to our earliest terrestrial ancestors. If this hypothesis is true, we should expect to find cross-species acoustic universals in emotional vocalizations. Studies suggest that acoustic attributes of...
Chickadees are highmetabolism, nonmigratory birds, and thus an especially interesting model for studying how animals follow patterns of food availability over time. Here, we studied whether blackcapped chickadees (Poecile atricapillus) could learn to reverse their behavior and/or to...
Chickadees produce many vocalizations, including chick-a-dee calls which they use as a mobbing call in the presence of predators. Previous research has shown that chickadees produce more D notes in their mobbing calls in response to high-threat predators compared to low-threat predators, and may...