Changes in Infants' Cries as a Function of Time in a Cry Bout

Green, James; Gustafson, Gwen E.; McGhie, Anne C.

doi:10.2307/1132163

Cited by 6 publications

(13 citation statements)

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“…17 24 29 Our finding was that the colic cries did not have a higher pitch, or proportion of dysphonation, than the pre-feed cries. Indeed, the dysphonation in the pre-feed cries was greater.…”

Section: Discussionmentioning

confidence: 54%

“…As Green et al have proposed recently,24 more sophisticated acoustic analyses, including analyses of sequential structure, will be needed in future studies. Until this work is completed, it remains possible that more robust evidence that infants selected for colic have acoustically distinct cries will be found.…”

Section: Discussionmentioning

confidence: 99%

“…As Green and colleagues24 have noted, acoustic analysis involves the sampling of cry bouts, and this has been neglected in the research literature. Because of the processing involved, digital computer acoustic analyses typically examine 1–30 second segments of cry vocalisation (30 seconds using our system), while fussing and crying periods typically last in the region of 5–20 minutes, and colic bouts for 20–50 minutes 10.…”

Section: Methodsmentioning

confidence: 99%

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What is distinct about infants' "colic" cries? Commentary

James‐Roberts

1999

Archives of Disease in Childhood

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Aims-To investigate (1) whether colic cries are acoustically distinct from prefeed "hunger" cries; (2) the role of the acoustic properties of these cries versus their other properties in accounting for parents' concerns about colic. Design-From a community sample, infants were selected who met Wessel colic criteria for amounts of crying and whose mothers identified colic bouts. Using acoustic analyses, the most intense segments of nine colic bouts were compared with matched segments from pre-feed cries presumed to reflect hunger. Results-The colic cries did not have a higher pitch or proportion of dysphonation than the pre-feed cries. They did contain more frequent shorter utterances, but these resembled normal cries investigated in other studies. There is no evidence that colic cries have distinct acoustic features that are reproducible across samples and studies, which identify a discrete clinical condition, and which are identified accurately by parents. Conclusions-The most reliable finding is that colic cries convey diVuse acoustic and audible information that a baby is highly aroused or distressed. Non-acoustic features, including the prolonged, hard to soothe, and unexplained nature of the cries may be specific to colic cries and more important for parents. These properties might reflect temperament-like dispositions. (Arch Dis Child 1999;80:56-62)

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Section: Discussionmentioning

confidence: 54%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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What is distinct about infants' "colic" cries? Commentary

James‐Roberts

1999

Archives of Disease in Childhood

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“…Other work has examined the spectral and temporal features of the cry segment that contained the Peak F 0 wherever it was in the entire recorded bout of crying (Zeskind et al, 2005). While some work shows how the frequency and other characteristics of infant crying change over time (Zeskind, 1985; Green et al, 1998), this is a markedly understudied area. Similarly, while some have described changes in the rate of USVs over time as a function of eliciting conditions, such as changes in temperature (Sokoloff and Blumberg, 1997), a paucity of known work has examined whether or how these vocalizations may change over the duration of a bout.…”

Section: Challenges To a Translational Analysismentioning

confidence: 99%

Development of Translational Methods in Spectral Analysis of Human Infant Crying and Rat Pup Ultrasonic Vocalizations for Early Neurobehavioral Assessment

Zeskind¹,

McMurray²,

Garber³

et al. 2011

Front. Psychiatry

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The purpose of this article is to describe the development of translational methods by which spectrum analysis of human infant crying and rat pup ultrasonic vocalizations (USVs) can be used to assess potentially adverse effects of various prenatal conditions on early neurobehavioral development. The study of human infant crying has resulted in a rich set of measures that has long been used to assess early neurobehavioral insult due to non-optimal prenatal environments, even among seemingly healthy newborn and young infants. In another domain of study, the analysis of rat put USVs has been conducted via paradigms that allow for better experimental control over correlated prenatal conditions that may confound findings and conclusions regarding the effects of specific prenatal experiences. The development of translational methods by which cry vocalizations of both species can be analyzed may provide the opportunity for findings from the two approaches of inquiry to inform one another through their respective strengths. To this end, we present an enhanced taxonomy of a novel set of common measures of cry vocalizations of both human infants and rat pups based on a conceptual framework that emphasizes infant crying as a graded and dynamic acoustic signal. This set includes latency to vocalization onset, duration and repetition rate of expiratory components, duration of inter-vocalization-intervals and spectral features of the sound, including the frequency and amplitude of the fundamental and dominant frequencies. We also present a new set of classifications of rat pup USV waveforms that include qualitative shifts in fundamental frequency, similar to the presence of qualitative shifts in fundamental frequency that have previously been related to insults to neurobehavioral integrity in human infants. Challenges to the development of translational analyses, including the use of different terminologies, methods of recording, and spectral analyses are discussed, as well as descriptions of automated processes, software solutions, and pitfalls.

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“…Michelsson, 1971). A few studies have shown acoustic differences between early and late portions of cry bouts, both spontaneously given (Green, Gustafson, & McGhie, 1998) and elicited (e.g. by a rubber band snap to an infant's heel, Zeskind et al, 1985), and have related such changes to adults' cry ratings (e.g.…”

mentioning

confidence: 99%

Changes in cry acoustics and distress ratings while the infant is crying

Wood

2009

Infant and Child Development

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Acoustics and distress ratings were examined during four minutes of naturally occurring crying from 20 healthy, 1-monthold infants. Two listeners made continuous judgements of infant distress during every 10-s segment of each cry sample. Dysphonation, number of wails, and pause duration were related to distress ratings across the 4 min of crying. Means and variances of ratings and acoustics, and the predictive value of each acoustic variable to ratings, differed in the first and second halves of the samples. Differences in the pattern of results occurred for individual infants. The results highlight the importance of studying the cry as a dynamic acoustic signal that may provide unique information about an individual infant's level of distress.

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Changes in Infants' Cries as a Function of Time in a Cry Bout

Cited by 6 publications

References 0 publications

What is distinct about infants' "colic" cries? Commentary

What is distinct about infants' "colic" cries? Commentary

Development of Translational Methods in Spectral Analysis of Human Infant Crying and Rat Pup Ultrasonic Vocalizations for Early Neurobehavioral Assessment

Changes in cry acoustics and distress ratings while the infant is crying

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