Vocal pathology in socially deprived monkeys

Newman, John D.; Symmes, David

doi:10.1002/dev.420070412

Cited by 48 publications

(18 citation statements)

References 10 publications

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“…Past studies on the ontogeny of vocalizations in primates showed few significant changes in the acoustic structure of vocalizations ͑Seyfarth and Cheney, 1986;Seyfarth and Cheney, 1997;Biben and Bernhards, 1995;Fischer, 2003;Inoue, 1988;Kalin and Shelton, 1998;Masataka, 1993;McCowan et al, 2001;Merker and Cox, 1999;Newman and Symmes, 1974;Owren et al, 1992, Owren et al, 1993Winter, 1969 One study showed morphological changes in the acoustic parameters of developing squirrel monkey vocalizations, but these changes were attributed strictly to maturation ͑Hammerschmidt et al, 2001͒. Many of the studies investigating changes in acoustic morphology during vocal development did not employ extensive quantitative analysis methods due to the limitations of audio recording quality in the field and analytical techniques.…”

Section: Introductionmentioning

confidence: 96%

Acoustic analysis of vocal development in a New World primate, the common marmoset (Callithrix jacchus)

Pistorio

Vintch

Wang

2006

The Journal of the Acoustical Society of America

150

164

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In contrast to humans and songbirds, there is limited evidence of vocal learning in nonhuman primates. While previous studies suggested that primate vocalizations exhibit developmental changes, detailed analyses of the extent and time course of such changes across a species' vocal repertoire remain limited. In a highly vocal primate, the common marmoset (Callithrix jacchus), we studied developmental changes in the acoustic structure of species-specific communication sounds produced in a social setting. We performed detailed acoustic analyses of the spectral and temporal characteristics of marmoset vocalizations during development, comparing differences between genders and twin pairs, as well as with vocalizations from adult marmosets residing in the same colony. Our analyses revealed significant changes in spectral and temporal features as well as variability of particular call types over time. Infant and juvenile vocalizations changed progressively toward the vocalizations produced by adult marmosets. Call types observed early in development that were unique to infants disappeared gradually with age, while vocal exchanges with conspecifics emerged. Our observations clearly indicate that marmoset vocalizations undergo both qualitative and quantitative postnatal changes, establishing the basis for further studies to delineate contributions from maturation of the vocal apparatus and behavioral experience.

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Section: Introductionmentioning

confidence: 96%

Acoustic analysis of vocal development in a New World primate, the common marmoset (Callithrix jacchus)

Pistorio

Vintch

Wang

2006

The Journal of the Acoustical Society of America

150

164

View full text Add to dashboard Cite

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“…Winter et al [1973] found that neither isolation nor deafening interfered with the production of the full vocal repertoire by squirrel monkeys as adults. Newman and Symmes [1974], on the other hand, found abnormalities in the clear calls (coos) of rhesus monkeys raised in partial social isolation; this is of interest since we are using homologous calls in the experiments described in this paper.…”

Section: Need For Developmental Studiesmentioning

confidence: 99%

Perception of Conspecific Vocalizations by Japanese Macaques

et al. 1979

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Japanese macaques (Macaca fuscata) and control species (vervet, pigtailed macaque, bonnet macaque) were trained for food to respond to one class of recorded fuscata vocalizations and to not respond to a second class. A measure of neural lateralization was obtained by presenting the stimuli randomly to the right or the left ear, and comparing performance in the two ears (ear advantage method). Vocalizations were from Steven Green''s field tapes. In experiment I, the two classes were Green''s ''smooth early high coos'' (SE) and ''smooth late high coos'' (SL). Experiment II utilized the same vocalizations, but sorted into a high-pitched and a low-pitched class, i.e., orthogonally to the communication-relevant dimension. We found that (a) Japanese macaques learned the SE-SL discrimination faster than the pitch discrimination; (b) the reverse was true for the controls; (c) Japanese macaques showed a right-ear advantage (presumed left hemisphere advantage) for the SE-SL distinction, but not for the pitch discrimination, and (d) controls (with one exception) showed no ear advantage for either discrimination. These demonstrations of selective attention to communication-relevant parameters of conspecific vocalizations, and neural lateralization in the perception of these vocalizations, parallel similar findings in human speech perception.

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“…While most of their attention was devoted to the vocalizations of adults, they did describe some infant vocalizations, including chirp-like clicks when a young baby was left by its mother and a long, high, plaintive sound when the infants were separated from their group. Newman and Symmes (1974) described abnormal features of the vocalizations of isolation-reared rhesus macaques. Two males and 2 females were deprived of physical contact with other monkeys from birth, and received only minimal handling from humans.…”

Section: Pigtail Macaques (Macaca Nemestrina)mentioning

confidence: 98%

Vocal pathology in socially deprived monkeys

Cited by 48 publications

References 10 publications

Acoustic analysis of vocal development in a New World primate, the common marmoset (Callithrix jacchus)

Acoustic analysis of vocal development in a New World primate, the common marmoset (Callithrix jacchus)

Perception of Conspecific Vocalizations by Japanese Macaques

Vocal Ontogeny in Macaques and Marmosets: Convergent and Divergent Lines of Development

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