{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T18:14:12Z","timestamp":1777918452498,"version":"3.51.4"},"reference-count":44,"publisher":"SAGE Publications","issue":"6","license":[{"start":{"date-parts":[[2022,2,8]],"date-time":"2022-02-08T00:00:00Z","timestamp":1644278400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Psychology of Music"],"published-print":{"date-parts":[[2022,11]]},"abstract":"<jats:p>Tonal or melodic contours of maternal voice directed to infants play a role in infants\u2019 self-regulation and vocal responsiveness. However, we are unaware about melodic contours of maternal humming directed to preterm infants and its role for infants\u2019 vocal responsiveness. We aimed (1) to identify the melodic contours (sinusoidal, bell-shaped, U-shaped, rising, falling, and linear contours) of maternal humming directed to preterm infants in kangaroo care and (2) to identify preterm infants\u2019 overlapping vocalizations in each humming melodic contour. Mothers ( N\u2009=\u200936) were invited to speak and to hum (using an improvised melody) for their preterm infants during kangaroo care. A temporal segmentation (frequency and lengths) of melodic contours of humming, and descriptive comparative analyses were performed. We found a predominance of sinusoidal contours, followed by bell-shaped, rising, falling, U-shaped, and, finally, linear contours. Also a predominance of infants\u2019 overlapping vocalizations was found in sinusoidal and in bell-shaped contours. This study underlines the role of melodic contours of maternal humming to preterm infants, highlighting its communicative functions for the vocal engagement of preterm infants during kangaroo care.<\/jats:p>","DOI":"10.1177\/03057356211073476","type":"journal-article","created":{"date-parts":[[2022,2,8]],"date-time":"2022-02-08T05:51:34Z","timestamp":1644299494000},"page":"1910-1924","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":4,"title":["Melodic contours of maternal humming to preterm infants in kangaroo care and infants\u2019 overlapping vocalizations: A microanalytical study"],"prefix":"10.1177","volume":"50","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6315-5603","authenticated-orcid":false,"given":"Maria Eduarda Salgado","family":"Carvalho","sequence":"first","affiliation":[{"name":"CESEM-NOVA-FCSH, Lisboa, Portugal"}]},{"given":"Jo\u00e3o Manuel Rosado","family":"de Miranda Justo","sequence":"additional","affiliation":[{"name":"Universidade de Lisboa Faculdade de Psicologia, Lisboa, Portugal"}]},{"given":"Carolina","family":"S\u00e1","sequence":"additional","affiliation":[{"name":"CESEM-NOVA-FCSH, Lisboa, Portugal"}]},{"given":"Maya","family":"Gratier","sequence":"additional","affiliation":[{"name":"Universit\u00e9 Paris-Nanterre, Nanterre, \u00cele-de-France, France"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4519-6716","authenticated-orcid":false,"given":"Helena Ferreira","family":"Rodrigues","sequence":"additional","affiliation":[{"name":"CESEM-NOVA-FCSH, Lisboa, Portugal"}]}],"member":"179","published-online":{"date-parts":[[2022,2,8]]},"reference":[{"key":"bibr1-03057356211073476","doi-asserted-by":"publisher","DOI":"10.1111\/apa.12744"},{"key":"bibr2-03057356211073476","unstructured":"Boersma P., Weenink D. 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