Related Experiment Videos
Brain dysfunction in neonates with cleft palate revealed by the mismatch negativity
M Cheour1, R Ceponiene, J Hukki
1Department of Psychology, University of Helsinki, Finland. marie.cheour@helsinki.fi
Summary
Newborns with cleft palate show an attenuated mismatch negativity (MMN) brain response compared to healthy infants. This early MMN difference may signal future learning difficulties, enabling earlier intervention.
Area of Science:
- Neuroscience
- Developmental Psychology
- Pediatrics
Background:
- The mismatch negativity (MMN) is an automatic change-detection response in event-related brain potentials (ERPs).
- Previous studies show attenuated MMN in school-age children with CATCH syndrome and cleft palate, often associated with learning difficulties.
- The MMN's potential as an early biomarker for neurodevelopmental issues is under investigation.
Purpose of the Study:
- To investigate if MMN is attenuated in newborns with cleft palate compared to healthy controls.
- To assess the MMN response in neonates as a potential early indicator of brain dysfunction.
Main Methods:
- Auditory stimuli (1000 Hz frequent, 1100 Hz infrequent) were presented to 9 neonates with cleft palate and 8 healthy controls.
- Mismatch negativity (MMN) was measured using event-related brain potentials (ERPs).
Main Results:
- A prominent MMN was observed in all healthy neonates in response to infrequent tones.
- Only 3 out of 9 neonates with cleft palate exhibited a prominent MMN.
- A significant difference in mean MMN amplitudes to deviant tones was found between the groups.
Conclusions:
- MMN attenuation in newborns with cleft palate suggests early brain dysfunction.
- MMN may serve as an early indicator of potential cognitive disabilities before they manifest.
- Early identification of infants at risk via MMN could facilitate timely rehabilitation.