Sound frequency change detection in fetuses and newborns, a magnetoencephalographic study

Draganova, Rossitza; Eswaran, Hari; Murphy, P.; Huotilainen, Minna; Lowery, Curtis L.; Preißl, Hubert

doi:10.1016/j.neuroimage.2005.06.011

Cited by 185 publications

(106 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Previous studies in preterm neonates have found left-hemispheric functional advantage for speech processing in the posterior temporal region, as indicated by faster and more sustained responses to speech sounds over the left than over the right hemisphere (82). These findings are consistent with similar results suggesting that infants are born with a left hemisphere functional specialization for speech processing (83)(84)(85). The ultrasound data obtained in our study are solely based on structural measurements, and thus our findings cannot dispute or support the above-mentioned studies.…”

Section: Discussionsupporting

confidence: 87%

Mother’s voice and heartbeat sounds elicit auditory plasticity in the human brain before full gestation

Webb¹,

Heller

Benson

et al. 2015

Proc. Natl. Acad. Sci. U.S.A.

195

106

View full text Add to dashboard Cite

Brain development is largely shaped by early sensory experience. However, it is currently unknown whether, how early, and to what extent the newborn's brain is shaped by exposure to maternal sounds when the brain is most sensitive to early life programming. The present study examined this question in 40 infants born extremely prematurely (between 25-and 32-wk gestation) in the first month of life. Newborns were randomized to receive auditory enrichment in the form of audio recordings of maternal sounds (including their mother's voice and heartbeat) or routine exposure to hospital environmental noise. The groups were otherwise medically and demographically comparable. Cranial ultrasonography measurements were obtained at 30 ± 3 d of life. Results show that newborns exposed to maternal sounds had a significantly larger auditory cortex (AC) bilaterally compared with control newborns receiving standard care. The magnitude of the right and left AC thickness was significantly correlated with gestational age but not with the duration of sound exposure. Measurements of head circumference and the widths of the frontal horn (FH) and the corpus callosum (CC) were not significantly different between the two groups. This study provides evidence for experience-dependent plasticity in the primary AC before the brain has reached full-term maturation. Our results demonstrate that despite the immaturity of the auditory pathways, the AC is more adaptive to maternal sounds than environmental noise. Further studies are needed to better understand the neural processes underlying this early brain plasticity and its functional implications for future hearing and language development. auditory | brain | mother's voice | heartbeat | preterm newborns

show abstract

Section: Discussionsupporting

confidence: 87%

Mother’s voice and heartbeat sounds elicit auditory plasticity in the human brain before full gestation

Webb¹,

Heller

Benson

et al. 2015

Proc. Natl. Acad. Sci. U.S.A.

195

106

View full text Add to dashboard Cite

show abstract

“…Recent studies (Draganova et al, 2005;Huotilainen, 2005) demonstrate that MMNm can also be recorded from a fetus (through the mother's abdominal wall). In addition, it has been utilized to evaluate the improvement of auditory discrimination after installation of a cochlear implant (Ponton et al, 2000;Lonka et al, 2004).…”

Section: Childhood Disordersmentioning

confidence: 99%

Event-related potentials in clinical research: Guidelines for eliciting, recording, and quantifying mismatch negativity, P300, and N400

Duncan

Barry

Connolly

et al. 2009

Clinical Neurophysiology

1,007

845

View full text Add to dashboard Cite

“…A number of ERP studies show that infants respond to changes in pitch from the newborn period [e.g., Leppänen et al (1997Leppänen et al ( ), Č eponiené et al (2002, Kushnerenko et al (2002), Draganova et al (2005), and Novitski et al (2007)]. A simple pitch change elicits a frontally negative MMN-like response in 3-and 4-month-old infants ϳ210 ms after stimulus onset, but a slow frontal positive wave in younger infants (He et al, 2007(He et al, , 2009a.…”

Section: Introductionmentioning

confidence: 99%

Finding the Pitch of the Missing Fundamental in Infants

He¹,

Trainor²

2009

Journal of Neuroscience

View full text Add to dashboard Cite

Pitch perception is critical for the perception of speech and music, for object identification, and for auditory scene analysis, whereby representations are derived for each sounding object in the environment from the complex sound wave that reaches the ears. The perceived pitch of a complex sound corresponds to its fundamental frequency. However, removal of energy at the fundamental does not alter the pitch because adults use the harmonics to derive the pitch (Bendor and Wang, 2005; Trainor, 2008). Although sound frequency is represented subcortically, the integration of harmonics into a representation of pitch does not occur until auditory cortex (Bendor and Wang, 2005). Given that auditory cortex is immature in young infants, we examined the development of cortical representations for pitch by measuring electrophysiological (EEG) responses to pitch changes that required processing the pitch of the missing fundamental. Adults and infants 4 months and older showed a mismatch negativity response to these pitch changes, but 3-month-old infants did not. Thus, cortical representations of the pitch of the missing fundamental emerge between 3 and 4 months of age, indicating that there is a profound change in auditory perception for pitch in early infancy.

show abstract

Sound frequency change detection in fetuses and newborns, a magnetoencephalographic study

Cited by 185 publications

References 34 publications

Mother’s voice and heartbeat sounds elicit auditory plasticity in the human brain before full gestation

Mother’s voice and heartbeat sounds elicit auditory plasticity in the human brain before full gestation

Event-related potentials in clinical research: Guidelines for eliciting, recording, and quantifying mismatch negativity, P300, and N400

Finding the Pitch of the Missing Fundamental in Infants

Contact Info

Product

Resources

About