Vincenzo Fiorillo, Barbara Martino, Valeria Castelli, Eliana Filipponi, Leonardo Braga, Alessandro Randolfi, Emanuele Garzia, Federica Di Berardino
{"title":"Postural Balance in Italian Air Force Pilots: Development of Specific Normative Values.","authors":"Vincenzo Fiorillo, Barbara Martino, Valeria Castelli, Eliana Filipponi, Leonardo Braga, Alessandro Randolfi, Emanuele Garzia, Federica Di Berardino","doi":"10.3390/audiolres15030070","DOIUrl":"10.3390/audiolres15030070","url":null,"abstract":"<p><p><b>Objectives</b>: Assessing balance in highly trained individuals, such as military pilots, poses challenges, as deficits may be underestimated when compared to general population norms. To address this, several studies have proposed tailored databases providing reference values for specific populations. This study retrospectively analyzed balance characteristics in active-duty military pilots of the Italian Air Force. <b>Methods</b>: We enrolled 106 subjects split into two groups: 53 military pilots from the Italian Air Force and 53 civilians without flight experience or exposure to specific vestibular stimuli. All participants underwent ENT examinations with audiometric testing to exclude related pathologies, followed by a personal history collection. Subsequently, they completed the EquiTest protocol across six standard conditions. <b>Results</b>: Significant differences were observed between Army Aviators and Non-Aviators. The PREF variable showed the most consistent distinction, with military pilots demonstrating a superior performance (<i>p</i> < 0.01). Additionally, borderline differences were noted in Condition 6 of the equilibrium scores (<i>p</i> = 0.056), and in the Centre of Gravity (COG) analysis along the X-axis for Conditions 1 and 5 (<i>p</i> = 0.090), and for Condition 2 (<i>p</i> = 0.050). These findings suggest enhanced postural control strategies among Army Aviators under conditions of sensory conflict. <b>Conclusions</b>: These findings suggest that normative balance values specific to military pilots should be used when evaluating aviators recovering from balance deficits. Such tailored benchmarks can help determine the need for rehabilitation before returning to duty, ensuring optimal performance under demanding conditions. Further research is necessary to explore the underlying mechanisms responsible for these adaptations and to identify the specific stimuli that contribute to the enhanced balance capabilities observed in this highly trained population.</p>","PeriodicalId":44133,"journal":{"name":"Audiology Research","volume":"15 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12189183/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144486518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effect of Sound Preference on Loudness Tolerance and Preferred Listening Levels Using Personal Listening Devices.","authors":"Yula C Serpanos, Thomas DiBlasi, Jasmin Butler","doi":"10.3390/audiolres15030068","DOIUrl":"10.3390/audiolres15030068","url":null,"abstract":"<p><p><b>Background/Objectives:</b> This study examined the effect of sound preference on loudness tolerance (LTLs) and preferred listening levels (PLLs) using personal listening devices (PLDs). The implication of this relationship on hearing health promotion counseling and practices using PLDs is discussed. <b>Methods:</b> Participants were 50 individuals, aged 21 to 90 years, with normal hearing or hearing loss. Listeners rated several sound samples (i.e., music, running speech, and machinery noise) played through a PLD using earphones according to their sound preference (i.e., enjoyable, acceptable, and unpleasant) and then self-adjusted the volume setting to their LTL and PLL for a sound sample in each sound preference category. <b>Results:</b> Most listeners judged music (70%) as <i>enjoyable</i>, running speech (54%) as <i>acceptable</i>, and machinery noise (84%) as <i>unpleasant.</i> No significant differences were found in LTLs according to sound preference, but PLLs for enjoyable sounds occurred at significantly higher levels compared with those deemed acceptable or unpleasant. <b>Conclusions:</b> Listeners using PLDs perceived LTLs and PLLs differently according to their sound preferences. PLLs occurred at significantly higher volumes for sounds deemed enjoyable when using PLDs. The implication is that hearing health counseling should include information to PLD users on the potential of altered loudness perception with enjoyable sounds, which may lead to higher and riskier PLD listening levels.</p>","PeriodicalId":44133,"journal":{"name":"Audiology Research","volume":"15 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12190042/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144486502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jiali Shen, Xiaobao Ma, Lu Wang, Wei Wang, Jianyong Chen, Qing Zhang, Maoli Duan, Yulian Jin, Jun Yang
{"title":"Feasibility of Early Vestibular Screening and Developmental Changes in Air- and Bone-Conducted Cervical Vestibular Evoked Myogenic Potentials in Infants and Children with Normal Hearing.","authors":"Jiali Shen, Xiaobao Ma, Lu Wang, Wei Wang, Jianyong Chen, Qing Zhang, Maoli Duan, Yulian Jin, Jun Yang","doi":"10.3390/audiolres15030067","DOIUrl":"10.3390/audiolres15030067","url":null,"abstract":"<p><p><b>Objective:</b> To evaluate the feasibility of vestibular screening in infants and investigate age-related changes in the characteristics of air-conducted sound cervical vestibular evoked myogenic potential (ACS-cVEMP) and bone-conducted vibration cervical vestibular evoked myogenic potential (BCV-cVEMP) in infants and children with normal hearing, aiming to provide new insights into the developmental trajectory of vestibular function during early childhood. <b>Methods:</b> A total of 159 subjects aged 3 months to 17 years old were divided into seven age groups. Additionally, 20 adults aged 18-30 years were included as controls to explore developmental changes in the sacculocollic reflex pathway. <b>Results:</b> The response rates of BCV-cVEMP in 3-month-olds were significantly higher than that of ACS-cVEMP (<i>p</i> = 0.048), while no significant difference was observed in other age groups (<i>p</i> > 0.05). Age-related changes were found in both latencies and amplitudes of ACS-cVEMP and BCV-cVEMP. ACS-cVEMP latencies reached adult levels at 13-17 years, while BCV-cVEMP latencies normalized by 7-12 years. ACS-cVEMP amplitudes increased with age, stabilizing at 4 years, whereas BCV-cVEMP amplitudes peaked at 4-6 years before gradually decreasing. <b>Conclusions:</b> This study demonstrates that cVEMP is not only a viable tool for vestibular screening in infants but also reveals crucial age-related developmental changes in the vestibular system. These findings contribute new insights into the maturation of the vestibular reflex pathways and provide normative data that can be used to guide early vestibular screening practices.</p>","PeriodicalId":44133,"journal":{"name":"Audiology Research","volume":"15 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12189697/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144486505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Hearing and Listening Difficulties in High Schools and Universities: The Results of an Exploratory Survey of a Large Number of Students and Teachers in the Friuli-Venezia Giulia and Umbria Regions, Italy.","authors":"Valeria Gambacorta, Davide Stivalini, Niccolò Granieri, Raffaella Marchi, Alessia Fabbri, Pasquale Viola, Alessia Astorina, Ambra Fastelli, Giampietro Ricci, Eva Orzan","doi":"10.3390/audiolres15030066","DOIUrl":"10.3390/audiolres15030066","url":null,"abstract":"<p><strong>Background/objectives: </strong>with the aim of describing how students and their teachers perceive and define their hearing and auditory experience in the classroom, we present the results of a questionnaire that examined the listening challenges faced by students and teachers at the University of Perugia and in four secondary schools in Friuli-Venezia Giulia, Italy.</p><p><strong>Methods: </strong>A survey was developed as part of the A.Ba.Co. project (Overcoming Communication Barriers). Closed or open-ended questions were used to analyze the responses of students and teachers regarding diagnosed or only perceived hearing difficulties in daily life and the quality of listening in school classes.</p><p><strong>Results: </strong>Hearing difficulties, either clinically diagnosed or only perceived, were reported by 8-9% of students. Between teachers, the reported hearing difficulties were 27.1% in high school and 12% at university (<i>p</i> < 0.001). The most frequent reason for less-than-optimal ease of listening in class differed between the two educational levels; 45.8% of high school students blamed it on the noise in the room compared to 18.2% of university students (<i>p</i> < 0.001). Inversely, 40.9% of university students connected listening difficulty with their place in class compared to 9.5% (101/1065) of high school students (<i>p</i> < 0.001).</p><p><strong>Conclusions: </strong>Although the minimum acoustic requirements for educational facilities have been established by the UNI 11532-2 standard, it is speculated that the majority of high school and university classrooms in Italy do not meet optimal listening conditions. Furthermore, the reasons for students' poor listening quality appear to not be fully understood, neither by students nor by teachers. In addition to the need for greater attention to physical learning spaces (advocating the universal design principles), effective change will also need to involve a greater awareness of what the barriers to listening are and how much they influence both teaching and learning quality and effectiveness.</p>","PeriodicalId":44133,"journal":{"name":"Audiology Research","volume":"15 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12189291/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144486506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pierre Reynard, Hung Thai-Van, Eugenia Mustea, Alexandra Neagu, Samar A Idriss, Eugen C Ionescu
{"title":"Sodium Channel Blockers for Vestibular Paroxysmia in Children.","authors":"Pierre Reynard, Hung Thai-Van, Eugenia Mustea, Alexandra Neagu, Samar A Idriss, Eugen C Ionescu","doi":"10.3390/audiolres15030065","DOIUrl":"10.3390/audiolres15030065","url":null,"abstract":"<p><p><b>Background/Objectives:</b> As vestibular paroxysmia (VP) has recently been described in children, with an incidence of up to 4% of vertigo, and a promising therapeutic response to sodium-channel-blocking drugs has also been reported, the aim of this paper is to review the available literature on this topic and to provide the best possible guidance for diagnosis and treatment. <b>Methods</b>: PubMed, Medline, Cochrane, and Crossref databases were searched, and all studies on VP in children and sodium channel blockers were selected. <b>Results</b>: Only five articles reporting small case series or single case reports were identified. To date, oxcarbazepine (OXC) and carbamazepine (CBZ) are the only two molecules prescribed. The recommended doses were 300 to 360 mg/day and 50 to 200 mg/day for OXC and CBZ, respectively, for a total duration of 6 weeks. Fast efficacy (one week) was reported. <b>Conclusions</b>: VP has been identified in pediatric patients and appears to respond to sodium channel blockers in a manner similar to adults. Only a limited number of cases have been reported to date; thus, there is a need to raise awareness about this treatable cause of episodic vertigo in children.</p>","PeriodicalId":44133,"journal":{"name":"Audiology Research","volume":"15 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12189259/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144486519","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"African Mole-Rats May Have High Bone Conduction Sensitivity to Counterbalance Low Air Conduction Sensitivity.","authors":"Andrew Bell","doi":"10.3390/audiolres15030064","DOIUrl":"10.3390/audiolres15030064","url":null,"abstract":"<p><p><b>Background/Objectives</b>: Subterranean mole-rats live in an intricate system of underground tunnels, a unique acoustic environment that has led to adaptations to their hearing. Most experimenters have concluded that mole-rats have poor hearing thresholds, perhaps 20-40 dB less sensitive than rodents living on the surface. The potential problem identified here is that mole-rat thresholds have all been measured in air, whereas there is some evidence-theoretical and observational-to suggest that these animals may hear more sensitively via bone conduction. <b>Methods</b>: A wide-ranging review of the literature surrounding mole-rat hearing is undertaken and then interpreted in terms of the ways air conduction and bone conduction thresholds are measured. The important factor, often overlooked, is that the detection of an acoustic signal is most sensitive when there are matching impedances all along the transmission path, and the argument is made that, for subterranean mole-rats, more energy may be transmitted to their cochlea when the head is directly in contact with the earth than when an acoustic signal must propagate from the earth to the air and then reach the cochlea via the external and middle ear. <b>Results</b>: Based on observational evidence, theoretical considerations, and inferences from related species, the suggestion is made that, for African mole-rats, high bone conduction sensitivity could make up for their relatively poor air conduction thresholds. <b>Conclusions</b>: Bone conduction audiograms are needed for mole-rats, similar to those for other animals sensitive to substrate vibration such as snakes or amphibians. It is possible that the hearing thresholds of mole-rats may, when measured appropriately, be comparable to those of other rodents.</p>","PeriodicalId":44133,"journal":{"name":"Audiology Research","volume":"15 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12189162/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144486499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Francesco Comacchio, Giulia Zattoni, Valerio Maria Di Pasquale Fiasca, Paola Magnavita, Barbara Bellemo, Elena Fasanaro, Elisabetta Poletto
{"title":"Masseter Vestibular Evoked Myogenic Potentials (M-VEMPs) in Vestibular Neuritis.","authors":"Francesco Comacchio, Giulia Zattoni, Valerio Maria Di Pasquale Fiasca, Paola Magnavita, Barbara Bellemo, Elena Fasanaro, Elisabetta Poletto","doi":"10.3390/audiolres15030063","DOIUrl":"10.3390/audiolres15030063","url":null,"abstract":"<p><p><b>Introduction</b>: Masseter vestibular evoked myogenic potentials (M-VEMPs) are a recent tool for assessing a vestibulo-trigeminal pathway departing from the saccule, similarly to cervical VEMPs (C-VEMPs), that evaluate saccular function via the sternocleidomastoid muscle. M-VEMPs may offer a complementary diagnostic value in vestibular neuritis (VN). <b>Methods</b>: This retrospective study analysed M-VEMPs and C-VEMPs in 28 monolateral patients and 1 bilateral (30 ears) diagnosed with VN between 2023 and 2024. Diagnostic evaluation included video head impulse tests (VHIT), caloric tests, ocular VEMPs, and, in a few cases, electromyography (EMG) of the sternocleidomastoid muscle. M-VEMPs were elicited using 500 Hz tone bursts at 97 dB nHL. Results were compared based on the topography of vestibular involvement and muscle response concordance. <b>Results</b>: M-VEMPs were always present in patients with superior VN and intact saccular function, showing consistent results with normal C-VEMPs. In some cases, with saccular dysfunction, M-VEMPs were preserved despite the absence of C-VEMPs, suggesting greater robustness. One patient with herpes zoster (HZ) involving both the VIII and trigeminal nerves showed absent M-VEMPs, indicating trigeminal pathway involvement. Edentulous patients showed reduced or absent M-VEMPs due to compromised masseter muscle electromyography activity. <b>Conclusions</b>: M-VEMPs are reliable and often concordant with C-VEMPs in VN but may reveal additional diagnostic information in discordant or complex cases. They are particularly useful in identifying trigeminal involvement but are limited in patients with poor masseter muscle function. Further studies are needed to clarify their full diagnostic potential.</p>","PeriodicalId":44133,"journal":{"name":"Audiology Research","volume":"15 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12189141/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144486508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Enrico Apa, Silvia Ferrari, Daniele Monzani, Andrea Ciorba, Luca Sacchetto, Virginia Dallari, Riccardo Nocini, Silvia Palma
{"title":"Body Image Concerns and Psychological Distress in Adults with Hearing Aids: A Case-Control Study.","authors":"Enrico Apa, Silvia Ferrari, Daniele Monzani, Andrea Ciorba, Luca Sacchetto, Virginia Dallari, Riccardo Nocini, Silvia Palma","doi":"10.3390/audiolres15030062","DOIUrl":"10.3390/audiolres15030062","url":null,"abstract":"<p><p><b>Background/Objectives</b>: Hearing loss represents an important communication barrier which can lead to social isolation and can be a challenge for mental health status. It is generally accepted that hearing aid (HA) users can develop a stigma related to hearing loss despite the perceived benefits due to most modern technologies. Nevertheless, stigma toward HAs may persist even when patients have been well acclimatized to their use. This study aims to evaluate their experiences in everyday life, the underlying social aspects and the utility of psychometric multidimensional approach in skilled HA users. <b>Methods</b>: In total, 96 HA users and 85 normally hearing subjects were enrolled and asked to complete three psychometric questionnaires that investigated social functioning, body image perception, and psychological distress. HA users were additionally asked to fulfill a disease-specific survey, the International Outcome Inventory for Hearing Aids. The performance of the devices was also investigated by HA's functional gain through free-field audiometry. <b>Results</b>: Even if auditory devices help with compensating the sensorial deprivation, patients often suffer from social anxiety, social phobia and body image concerns about their appearance while wearing HAs. <b>Conclusions</b>: This study discloses psychopathological factors associated with the HA experience that are surprisingly present after long satisfying HA use. Despite the benefits, the satisfaction and the daily use, HA users continue to be worried about body image and report more psychopathological distress in comparison to their normal hearing peers.</p>","PeriodicalId":44133,"journal":{"name":"Audiology Research","volume":"15 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12189381/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144486500","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Andrea Tozzi, Andrea Castellucci, Salvatore Martellucci, Pasquale Malara, Michael Eliezer, Giuseppe Ferrulli, Rosanna Rita Ruberto, Pasquale Brizzi, Enrico Armato, Alessio Marchetti, Daniele Marchioni, Angelo Ghidini, Claudio Moratti
{"title":"Vestibular Atelectasis: A Narrative Review and Our Experience.","authors":"Andrea Tozzi, Andrea Castellucci, Salvatore Martellucci, Pasquale Malara, Michael Eliezer, Giuseppe Ferrulli, Rosanna Rita Ruberto, Pasquale Brizzi, Enrico Armato, Alessio Marchetti, Daniele Marchioni, Angelo Ghidini, Claudio Moratti","doi":"10.3390/audiolres15030061","DOIUrl":"10.3390/audiolres15030061","url":null,"abstract":"<p><p>Vestibular atelectasis (VA) is a rare clinical entity characterized by a collapse of the endolymphatic space resulting in vestibular loss with the possible onset of positional and/or sound/pressure-induced vertigo. It could be idiopathic or secondary to other inner-ear diseases including Meniere's disease (MD). A collapse of the membranous labyrinth involving the semicircular canals (SCs) and the utricle represents its distinctive histopathological feature. While specific radiological patterns consistent with VA have been described on contrast-enhanced MRI with delayed acquisitions, an impairment of the blood-labyrinthine barrier (BLB) could be detected in several disorders leading to vestibular loss. We conducted a narrative review of the literature on VA focusing on the putative pathomechanisms accounting for positional and sound/pressure-induced nystagmus despite unilateral vestibular loss (UVL) in this condition, providing two novel cases of VA. Both patients presented with a clinical picture consistent with unilateral MD that rapidly turned into progressive UVL and positional and/or sound/pressure-induced vertigo. In both cases, the posterior SC was initially impaired at the video-head impulse test (vHIT) and both cervical and ocular VEMPs were initially reduced. Progressively, they developed unsteadiness with paretic spontaneous nystagmus, an impairment also for the lateral and anterior SCs, caloric hypo/areflexia and VEMPs areflexia. They both exhibited ipsilesional nystagmus to sound/pressure stimuli and in one case a persistent geotropic direction-changing positional nystagmus consistent with a \"light cupula\" mechanism involving the lateral SC of the affected side. A collapse of the membranous labyrinthine walls resulting in contact between the vestibular sensors and the stapes footplate could explain the onset of nystagmus to loud sounds and/or pressure changes despite no responses to high- and low-frequency inputs as detected by caloric irrigations, vHIT and VEMPs. On the other hand, the onset of positional nystagmus despite UVL could be explained with the theory of the \"floating labyrinth\". Both patients received contrast-enhanced brain MRI with delayed acquisition exhibiting increased contrast uptake in the pars superior of the labyrinth, suggesting an impairment of the BLB likely resulting in secondary VA. A small intralabyrinthine schwannoma was detected in one case. VA should always be considered in case of positional and/or sound/pressure-induced vertigo despite UVL.</p>","PeriodicalId":44133,"journal":{"name":"Audiology Research","volume":"15 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12101387/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144129179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Objective Detection of Auditory Steady-State Responses (ASSRs) Based on Mutual Information: Receiver Operating Characteristics and Performance Across Modulation Rates and Levels.","authors":"Gavin M Bidelman, Claire McElwain Horn","doi":"10.3390/audiolres15030060","DOIUrl":"10.3390/audiolres15030060","url":null,"abstract":"<p><p><b>Background</b>: Auditory steady-state responses (ASSRs) are sustained potentials used to assess the physiological integrity of the auditory pathway and objectively estimate hearing thresholds. ASSRs are typically analyzed using statistical procedures to remove the subjective bias of human operators. Knowing when to terminate signal averaging in ASSR testing is critical for making efficient clinical decisions and obtaining high-quality data in empirical research. Here, we report on stimulus-specific (frequency, level) properties and operating ranges of a novel ASSR detection metric based on mutual information (MI). <b>Methods</b>: ASSRs were measured in <i>n</i> = 10 normal-hearing listeners exposed to various stimuli varying in modulation rate (40, 80 Hz) and level (80-20 dB SPL). <b>Results</b>: MI-based classifiers applied to ASSR recordings showed that the accuracy of ASSR detection ranged from ~75 to 99% and was better for 40 compared to 80 Hz responses and for higher compared to lower stimulus levels. Receiver operating characteristics (ROCs) were used to establish normative ranges for MI for reliable ASSR detection across levels and rates (MI = 0.9-1.6). Relative to current statistics for ASSR identification (F-test), MI was a more efficient metric for determining the stopping criterion for signal averaging. <b>Conclusions</b>: Our results confirm that MI can be applied across a broad range of ASSR stimuli and might offer improvements to conventional objective techniques for ASSR detection.</p>","PeriodicalId":44133,"journal":{"name":"Audiology Research","volume":"15 3","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12101356/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144129163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}