Auditory Discrimination Development from Childhood to Adulthood
Author Information
Author(s): Dorothy V.M. Bishop, Mervyn J. Hardiman, Johanna G. Barry
Primary Institution: Department of Experimental Psychology, University of Oxford
Hypothesis
Does the MMN change with age?
Conclusion
Neurophysiological processes underlying auditory discrimination continue to develop through childhood and adolescence.
Supporting Evidence
- Children's ability to discriminate frequency and speech contrasts reaches adult levels only around 12 years of age.
- Mismatch negativity (MMN) is as large in children as in adults, indicating similar neurophysiological responses.
- Phase-synchronization of oscillations in the theta range increases with age, correlating with frequency discrimination thresholds.
Takeaway
As kids grow up, their ability to tell different sounds apart gets better, and this study shows how their brains change during that time.
Methodology
Participants included children, teenagers, and adults who underwent auditory discrimination tasks while their brain activity was recorded.
Potential Biases
Potential bias due to reliance on peak amplitude measures which may not accurately reflect true differences in mismatch responses.
Limitations
The study did not achieve gender balance in the sample, and some participants were excluded due to insufficient data.
Participant Demographics
30 children (7-12 years), 23 teenagers (13-16 years), and 32 adults (35-56 years); gender distribution was not balanced.
Statistical Information
P-Value
<0.001
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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