The emergence of idiosyncratic patterns in the frequency-following response during the first year of life

Fernando Llanos; T Christina Zhao; Patricia K Kuhl; Bharath Chandrasekaran

doi:10.1121/10.0010493

The emergence of idiosyncratic patterns in the frequency-following response during the first year of life

JASA Express Lett. 2022 May;2(5):054401. doi: 10.1121/10.0010493. Epub 2022 May 10.

Authors

Fernando Llanos¹, T Christina Zhao², Patricia K Kuhl³, Bharath Chandrasekaran⁴

Affiliations

¹ Department of Linguistics, University of Texas at Austin, Austin, Texas 78712, USA.
² Department of Speech and Hearing Sciences, University of Washington, Seattle, Washington 98195, USA.
³ Institute for Learning and Brain Sciences, University of Washington, Seattle, Washington 98195, USA.
⁴ Department of Communication Sciences and Disorders, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA [email protected], [email protected], [email protected], [email protected].

Abstract

The frequency-following response (FFR) is a scalp-recorded signal that reflects phase-locked activity from neurons across the auditory system. In addition to capturing information about sounds, the FFR conveys biometric information, reflecting individual differences in auditory processing. To investigate the development of FFR biometric patterns, we trained a pattern recognition model to recognize infants (N = 16) from FFRs collected at 7 and 11 months. Model recognition scores were used to index the robustness of FFR biometric patterns at each time. Results showed better recognition scores at 11 months, demonstrating the emergence of robust FFR idiosyncratic patterns during this first year of life.

Abstract

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