Third International Workshop on Models and Analysis of Vocal Emissions for Biomedical Applications (MAVEBA 2003)
Acoustical characteristics of the cry of 57 newborns during heel-prick were correlated to pain intensify, as evaluated according to the DAN index. A time-frequency analysis of the acoustic waveform showed that the fundamental frequency and the rms normalized pressure level are both correlated to DAIS* score. Moreover, a typical "siren cry" pattern was observed in more than 60% of the subjects with DAN score ≥9 and in none of those with DAN score ≤8. This observation and the rapid increase of the fundamental frequency above DAN=8 suggest that this DAN score represents a threshold level Above this level, the acoustic features of the cry change significantly, conveying a message of unbearable pain and danger.
Index Terms. cry, neonate, pain
Full Paper (reprinted with permission from Firenze University Press)
Bibliographic reference. Sisto, R. / Bellieni, C. V. / Cordelli, D. M. / Buonocore, G. (2003): "Cry features as a measure of pain intensity in newborns", In MAVEBA-2003, 43-46.