Navegando por Autor "Kelly, Lauren M"
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Artigo Domestication phenotype linked to vocal behavior in marmoset monkeys(Elsevier, 2020-10) Ghazanfar, Asif A; Kelly, Lauren M; Takahashi, Daniel Yasumasa; Winters, Sandra; Terrett, Rebecca; Higham, James PThe domestication syndrome refers to a set of traits that are the by-products of artificial selection for increased tolerance toward humans [1-3]. One hypothesis is that some species, like humans and bonobos, "self-domesticated" and have been under selection for that same suite of domesticated phenotypes [4-8]. However, the evidence for this has been largely circumstantial. Here, we provide evidence that, in marmoset monkeys, the size of a domestication phenotype-a white facial fur patch-is linked to their degree of affiliative vocal responding. During development, the amount of parental vocal feedback experienced influences the rate of growth of this facial white patch, and this suggests a mechanistic link between the two phenotypes, possibly via neural crest cells. Our study provides evidence for links between vocal behavior and the development of morphological phenotypes associated with domestication in a nonhuman primateArtigo Prenatal development of neonatal vocalizations(ELife Sciences Publications, Ltd, 2022-07-26) Narayanan, Darshana Z; Takahashi, Daniel Yasumasa; Kelly, Lauren M; Hlavaty, Sabina I; Huang, Junzhou; Ghazanfar, Asif AHuman and non-human primates produce rhythmical sounds as soon as they are born. These early vocalizations are important for soliciting the attention of caregivers. How they develop, remains a mystery. The orofacial movements necessary for producing these vocalizations have distinct spatiotemporal signatures. Therefore, their development could potentially be tracked over the course of prenatal life. We densely and longitudinally sampled fetal head and orofacial movements in marmoset monkeys using ultrasound imaging. We show that orofacial movements necessary for producing rhythmical vocalizations differentiate from a larger movement pattern that includes the entire head. We also show that signature features of marmoset infant contact calls emerge prenatally as a distinct pattern of orofacial movements. Our results establish that aspects of the sensorimotor development necessary for vocalizing occur prenatally, even before the production of sound