
Hearing Research, Journal Year: 2024, Volume and Issue: 452, P. 109105 - 109105
Published: Aug. 14, 2024
Cochlear implant (CI) users experience diminished music enjoyment due to the technical limitations of CI. Nonetheless, behavioral studies have reported that rhythmic features are well-transmitted through Still, gradual improvement rhythm perception after CI switch-on has not yet been determined using neurophysiological measures. To fill this gap, we here reanalyzed electroencephalographic responses participants from two previous mismatch negativity studies. These included eight recently implanted measured twice, within first six weeks and approximately three months later; thirteen experienced with a median 7 years; fourteen normally hearing (NH) controls. All listened repetitive four-tone pattern (known in as Alberti bass) for 35 min. Applying frequency tagging, aimed estimate neural activity synchronized periodicities bass. We hypothesized longer would be reflected stronger frequency-tagged approaching NH found an increase amplitudes only 3 use. This synchronization may reflect early adaptation stimulation. Moreover, were significantly greater than those users, but still smaller The did just spectrotemporal changes stimuli (i.e., intensity or spectral content fluctuating over time), also showed non-linear transformations seemed enhance relevant Our findings provide evidence indicating CI, which is noticeable already months, resulting close brain processing musical rhythms extended
Language: Английский