Chirp Analyzer for Estimating Amplitude and Latency of Steady-State Auditory Envelope Following Responses.

ABSTRACT:

Objective

The envelope following response (EFR) is a clinically relevant evoked potential, reflecting the synchronization of the auditory pathway to the temporal envelope of sounds. Since there is no standard analysis of this potential, we here aim at contrasting the relative accuracy of known time-frequency methods and new strategies for the reliable estimation of the EFR amplitude and latency.

Methods

The EFR was estimated using explicit time-frequency methods: the Short-Term Fourier Transform (STFT) and the Morlet Continuous Wavelet Transform (CWT). Furthermore, the Chirp Analyzer (CA) was introduced as a new tool for the reliable estimation of the EFR. The applicability of the methods was tested in animal and human recordings.

Results

Using simulated data for comp

SUBMITTER: Martinez-Montes E 

PROVIDER: S-EPMC7920094 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature