Development of auditory-specific brain rhythm in infants

Authors:  Takako Fujioka, Nasser Mourad, and Laurel  J. Trainor
Publication:    European Journal of Neuroscience
Publication volume & date:  Vol. 33, Issue 3, pages 521-529.  February 2011.
DOI:  10.1111/j.1460-9568.2010.07544.x

Abridged Abstract: “Human infants rapidly develop their auditory perceptual abilities and acquire culture-specific knowledge in speech and music in the second 6 months of life. In the adult brain, neural rhythm around 10 Hz in the temporal lobes is thought to reflect sound analysis and subsequent cognitive processes such as memory and attention. To study when and how such rhythm emerges in infancy, we examined electroencephaolgram (EEG) recordings in infants 4 and 12 months of age during sound stimulation and silence…. findings suggest that auditory-specific rhythmic neural activity, which is already established before 6 months of age, involves more speed-efficient long-range neural networks by the age of 12 months when long-term memory for native phoneme representation and for musical rhythmic features is formed.”

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