Cennet Reyyan TANBOĞA, Ayça ÇIPRUT
The Turkish Journal of Ear Nose and Throat - 2025;35(4):178-184
Objective: Cochlear implant (CI) users are typically assessed using behavioral psychoacoustic measures. However, these evaluations may not adequately reflect real-world listening experiences. This study aimed to examine the relationship between psychoacoustic performance and self-reported hearing abilities in daily life among CI users. Material and Methods: Twenty-four adult unilateral CI recipients (mean age=34.98+/-8.85 years; range: 19-50 years) were included in the study. The study utilized behavioral measures [Spectral-Temporally Modulated Ripple Test (SMRT), and Temporal Modulation Transfer Function (TMTF), Turkish Matrix Test (Matrix)], self-reported questionnaires [Speech, Spatial and Qualities of Hearing Scale (SSQ) and the hearing handicap inventory for adults (HHI-A). The TMTF evaluation was performed at a modulation frequency of 10 Hz, and the Matrix test was applied in adaptive mode. Results: No significant overall correlation was observed between TMTF, SMRT, Matrix, self-reported assessments (p>.05). Although no significant differences (p>.05) were observed, weak positive correlations were found between the Matrix test and the HHI-A Emotional (r=.318) and Social (r=.385) subdomains, as well as between the TMTF and the SSQ Hearing Qualities subdomain (r=.295). SMRT and Matrix scores moderate correlated significantly (r=-.492, p=.015); HHI-A Emotional scores were moderate correlated with SSQ Hearing Qualities (r=-.420, p=.041); HHI-A Social scores moderate correlated with SSQ Hearing Qualities (r=-.447, p=.029). Conclusions: Although behavioral assessments hold a primary place within test protocols, self-report questionnaires provide important complementary information by reflecting the impact of hearing loss on daily life from the individual's perspectives. Therefore, incorporating self-report scales into test batteries designed for the evaluation of cochlear implant users offers substantial value, as it allows auditory performance to be approached comprehensively from both behavior-based measurements and subjective dimensions.
