Ashmead D H, Clifton R K, Reese E P
Dev Psychobiol. 1986 Mar;19(2):91-103. doi: 10.1002/dev.420190202.
The development of auditory localization in dogs was investigated in a litter of 12 pups. Behavioral auditory localization consisted of orienting responses to dog vocalizations presented from loudspeakers 90 degrees to each side. Sounds were presented in two configurations, single source (only one loudspeaker) and precedence effect (both loudspeakers, with one slightly leading the other). Localization began around 16 days after birth, for single-source sounds. This is consistent with previous observations and with findings on dogs' auditory neural development. Single-source sounds were localized earlier during development than precedence-effect sounds. This ordering resembles findings on human infants and can be related to neuroanatomical investigations of mammalian brain structures mediating single source versus precedence effect localization.
在一窝12只幼犬中对犬类听觉定位的发育情况进行了研究。行为听觉定位包括对从两侧90度角的扬声器发出的犬类叫声做出定向反应。声音以两种配置呈现，单源（仅一个扬声器）和优先效应（两个扬声器，其中一个稍微领先于另一个）。对于单源声音，出生后约16天开始出现定位。这与之前的观察结果以及犬类听觉神经发育的研究结果一致。在发育过程中，单源声音的定位比优先效应声音更早。这种顺序类似于人类婴儿的研究结果，并且可能与介导单源与优先效应定位的哺乳动物脑结构的神经解剖学研究有关。
