Acoustic Characteristics of Vocalization Reflecting the States of Discomfort and Comfort in Babies Aged Three and Six Months

We report here the ability of adults to recognize the states of discomfort and comfort in babies aged three and six months by listening to their vocalizations. The acoustic characteristics of vocalizations significant for recognizing states from the characteristics of the baby’s voice are described....

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Bibliographic Details
Published in:Neuroscience and behavioral physiology 2017, Vol.47 (1), p.40-46
Main Authors: Pavlikova, M. I., Makarov, A. K., Lyakso, E. E.
Format: Article
Language:English
Subjects:
Behavioral Sciences
Biomedical and Life Sciences
Biomedicine
Classification
Comfort
Discomfort
Mathematical models
Neurobiology
Neurosciences
Voice recognition
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Summary:We report here the ability of adults to recognize the states of discomfort and comfort in babies aged three and six months by listening to their vocalizations. The acoustic characteristics of vocalizations significant for recognizing states from the characteristics of the baby’s voice are described. Discomfort vocalizations were found to differ from babies’ comfort signals in terms of the mean and maximum fundamental tone frequencies (FTF) and FTF values in the central and final parts of vocalizations. A mathematical model is presented and a function classifying signals as indicating discomfort or comfort is described. Babies’ vocalizations attributed by adults to the comfort and discomfort categories with probabilities of 0.75 and above were very reliably recognized by the mathematical model based on the classification function.
ISSN:0097-0549
1573-899X
DOI:10.1007/s11055-016-0364-0