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Heffner, H. E. (1983). Hearing in large and small dogs: Absolute thresholds and size of the tympanic membrane. Behavioral Neuroscience, 97(2), 310–318. 
Added by: Mark Grimshaw-Aagaard (12/5/22, 6:52 AM)   
Resource type: Journal Article
Peer reviewed
DOI: 10.1037/0735-7044.97.2.310
BibTeX citation key: Heffner1983
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Categories: General
Keywords: Hearing, Ultrasound
Creators: Heffner
Collection: Behavioral Neuroscience
Views: 3/24
"Comparative studies of hearing have shown that the ability of different species of mammals to hear high-frequency sounds is inversely related to the distance between their ears (i.e., functional interaural distance). In order to determine whether this relation applies to within-species as well as to between-species variation in interaural distance, the audiograms of 4 dogs ranking in size from a Chihuahua to a Saint Bernard were determined. Ss were taught to respond to the presence or absence of a tone. The ears of 15 dogs, including the largest and smallest in this study, were then dissected and measured. Results indicate that there is no significant relation between interaural distance and the high-frequency hearing ability of individual dogs. Further analysis, which included measurements of the tympanic membrane, indicated that neither interaural distance nor area of the tympanic membrane is related to variation in high-frequency hearing, low-frequency hearing, or absolute sensitivity among dogs."
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