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2024

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Articles 61 - 90 of 100

Full-Text Articles in Speech and Hearing Science

The Influence Of Cognition On Dysphagia In Adults With Severe Traumatic Brain Injury, Elizabeth Mcdonald Apr 2024

The Influence Of Cognition On Dysphagia In Adults With Severe Traumatic Brain Injury, Elizabeth Mcdonald

Student Academic Conference

Dysphagia leads to an increased risk of morbidity and mortality (Alhashemi, 2010), and individuals with severe traumatic brain injuries (TBIs) are at an extremely heightened risk of developing dysphagia. This paper identified the known links between cognition and dysphagia, specifically focusing on adults with severe TBIs. The Rancho Los Amigos Revised Scale (RLAS-R) was found to be the best predictive factor in the presence, severity, and resolution of dysphagia (Terré & Mearin, 2007; Terré & Mearin, 2009; Hansen et al., 2008). This information is vital for speech-language pathologists (SLPs) to understand due to their experience and expertise in treating disorders …


Impacts Of Socioeconomic Status On Language Development In Preschool Children, Denise Adriaansen Apr 2024

Impacts Of Socioeconomic Status On Language Development In Preschool Children, Denise Adriaansen

Student Academic Conference

According to Lee (2023), 37.9 million Americans are living in poverty. Poverty is associated with deficits in language, communication, and social skills. Language development is a crucial aspect of a child's development. Children who live in low-socioeconomic households have a higher prevalence of language impairments. This paper will explore the impact that socioeconomic status has on language development in preschool-aged children. It includes becoming knowledgeable on serving individuals that come from different backgrounds, including level of socioeconomic status. It is important for all individuals especially professionals who will serve this population to understand how level of socioeconomic status can affect …


The Psychosocial Effects Of Alaryngeal Speech Following A Laryngectomy, Jennifer Cloos Apr 2024

The Psychosocial Effects Of Alaryngeal Speech Following A Laryngectomy, Jennifer Cloos

Student Academic Conference

When an individual is unable to communicate using verbal speech, they can be given or introduced to a variety of alternative or augmentative options to help assist in their ability to communicate their wants and needs appropriately. In this paper the focus is on communication from those who have had a partial or total laryngectomy procedure and how the alteration of their means of communicative output affects their psychosocial health and well-being. This literature review breaks down what kind of care is expected for laryngectomees post-operation, options for communicative output following that procedure, how intensive surgeries and artificial voice options …


The Role Of High School Based Speech Language Pathologists In Transitioning Students With Autism Spectrum Disorder Into Professional Careers, Cameryn Maykut Apr 2024

The Role Of High School Based Speech Language Pathologists In Transitioning Students With Autism Spectrum Disorder Into Professional Careers, Cameryn Maykut

Student Academic Conference

Autism Spectrum Disorder (ASD) is widely known to be one of the fastest growing developmental disabilities in the United States. Due to the ever-increasing prevalence of ASD, it is essential for Speech-Language Pathologists (SLPs) to be educated on how to provide the highest quality of services to this population. This research paper aims to investigate the role of the high school based SLP while working with students with ASD during the transition from high school to vocational settings. Research was collected through compiling data from a variety of peer-reviewed scholarly sources, such as journals, articles, and organizations. Findings from the …


The Speech Language Pathologist's Role In Intervention For Parkinson's Disease, Jenna Lovaas Apr 2024

The Speech Language Pathologist's Role In Intervention For Parkinson's Disease, Jenna Lovaas

Student Academic Conference

This literature review explored the available intervention techniques utilized by Speech Language Pathologists (SLPs) when treating individuals with Parkinson's disease (PD). Parkinson's disease affects six million people worldwide and is expected to double by the year 2040. Deficits associated with PD manifest themselves into motor and non-motor symptoms that show varying benefit from pharmacological approaches alone. For this reason, SLPs provided comprehensive treatment approaches to address the challenges related to dysarthria, dysphagia, and cognitive linguistic skills. Treatment consisted of behavioral techniques, diet modifications, compensatory strategies, muscle strength training, and restorative training. While some techniques demonstrated benefit to more than one …


The Effect Of Melodic Intonation Therapy On Language Recovery In Patients After Stroke, Alie Rockey Apr 2024

The Effect Of Melodic Intonation Therapy On Language Recovery In Patients After Stroke, Alie Rockey

Student Academic Conference

This project is an examination of literature discussing the effects of Melodic Intonation Therapy (MIT) on language recovery in patients after stroke. The role of MIT after stroke is to encourage language recovery and promote overall well-being. Nine studies are summarized pertaining to the importance of MIT for individuals after stroke and the generalization of this approach. The existing literature supported MIT as a consistent intervention approach that positively impacted stroke and language recovery. Additionally, this review explored implementation options and the importance of each method. The importance for future research and synthesis is impactful across settings. Overall implications predict …


Best Practice Interventions For Individuals With Cleft Palate, Aleisha Johnson Apr 2024

Best Practice Interventions For Individuals With Cleft Palate, Aleisha Johnson

Student Academic Conference

Cleft palate and cleft lip with palate occur in every 1,700 and 1,600 births (ASHA, n.d.). Speech-language pathology intervention is often needed by individuals who have had a cleft palate; about 50% of individuals who have had a repaired cleft palate are referred to speech pathology services (Sand et al., 2022). According to Alighieri et al. (2021), there is a lack of clear procedures when administering treatment to individuals with repaired cleft palates. The purpose of this project is to identify best practice for speech therapy interventions for individuals with repaired cleft palates. This project reviews the traditional articulation approach, …


Understanding Practitioner’S Perceptions Of Speech And Language Therapy Services In The Juvenile Justice System, Julia Buendgen Apr 2024

Understanding Practitioner’S Perceptions Of Speech And Language Therapy Services In The Juvenile Justice System, Julia Buendgen

Student Academic Conference

The purpose of this study was to gain more understanding of how individuals who work with the juvenile justice population understand language disorders and the scope of speech and language therapy services. In addition, this study explored potential supports for individuals working in this setting. This study consisted of twenty participants working in the juvenile justice system who completed a survey tool that was designed by the researcher to describe the participant's perceptions of speech-language pathology, current procedures, reported challenges, and potential areas in need of support. Participant knowledge of the scope of speech-language pathology varied among participants. The highest …


Focus Groups: Perceived Stress And Stress Management Techniques Of Speech-Language Pathology Graduate Students, Emily Karevold Apr 2024

Focus Groups: Perceived Stress And Stress Management Techniques Of Speech-Language Pathology Graduate Students, Emily Karevold

Student Academic Conference

Speech-Language Pathologists are required to earn a master's degree from an accredited program (ASHA, n.d.). Graduate students, typically in their twenties and thirties, are prone to stress that arise while completing their graduate degree such as paying off undergraduate student debt, earning a sustainable income while in school, and working on establishing a professional identity within their career field (Cho & Hayter, 2020). This stress is magnified by the stress associated with earning a graduate education, which negatively impacts their productivity and diminishes their mental and physical well-being (Cho & Hayter, 2020).Stress can be defined as any change that causes …


Psychosocial Effects Of Stuttering In Adults: Cognitive Behavioral Therapy And The Role Of The Slp, Gabrielle Furman Apr 2024

Psychosocial Effects Of Stuttering In Adults: Cognitive Behavioral Therapy And The Role Of The Slp, Gabrielle Furman

Student Academic Conference

Adults who stutter may be struggling with the psychological or emotional impacts relating to their stutter. This project examines the psychosocial effects of stuttering on adults and addresses the use of cognitive-behavioral therapy to reduce the negative feelings and attitudes towards their stutter. The aspects of cognitive-behavioral therapy and the techniques involved were explored. This therapy approach was found to be beneficial for adults who stutter in reducing anxiety and social avoidance, increasing participation in daily activities, and increasing confidence in speaking situations. The role of the speech-language pathologist was found to include choosing an approach that best fits the …


Deaf And Hard Of Hearing Children’S Resources In K-12 Mainstream American Schools, Ashley Green Apr 2024

Deaf And Hard Of Hearing Children’S Resources In K-12 Mainstream American Schools, Ashley Green

Honors Theses

The purpose of this thesis is to find out what mainstream schools have to offer for Deaf and Hard of Hearing children’s education. This thesis includes a survey given to a few school districts in Michigan as well as literature review. To take this survey, participants must be qualified staff members who work in a school with Deaf and Hard of Hearing children. The survey was sent out via email to school principals in the district, to be distributed to qualified staff. Once the staff members agreed to the study, they were given access to a twelve-question anonymous survey regarding …


The Effects Of Neuromuscular Electrical Stimulation On Chronic Dysphagia Following Anterior Cervical Disc Fusion Surgery: A Case Report, Anna Munson Apr 2024

The Effects Of Neuromuscular Electrical Stimulation On Chronic Dysphagia Following Anterior Cervical Disc Fusion Surgery: A Case Report, Anna Munson

Honors Theses

Background: Current literature is lacking an understanding of the physiological mechanisms underlying dysphagia (impairment in swallowing function) that manifests as the result of anterior cervical discectomy and fusion (ACDF). ACDF is a common cervical spinal procedure that, due to its anterior to posterior (front-to-back) approach, risks significant injury to the larynx, which is critical for swallowing food and liquid safely. Furthermore, the general therapeutic approaches available to individuals with dysphagia after ACDF lack specificity of what is being targeted (Ko, et al. 2022). This project is a single subject case report of an individual who underwent ACDF and received neuromuscular …


Exploring The Relationship Between College Students' Self-Reported Listening Habits With Apple Airpods Or Earbuds And Pure Tone Hearing Threshold Outcomes, Blake Roth, Maegan Koch, Aubree Warner, Annika Wallace, Romina Gehrts, Austin Drake Apr 2024

Exploring The Relationship Between College Students' Self-Reported Listening Habits With Apple Airpods Or Earbuds And Pure Tone Hearing Threshold Outcomes, Blake Roth, Maegan Koch, Aubree Warner, Annika Wallace, Romina Gehrts, Austin Drake

SACAD: Scholarly Activities

This study investigated the relationship between self-reported listening habits of college students and their auditory threshold screening outcomes. Survey data was collected in addition to the completion of basic audiometry screening procedures. Results indicated most participants listen to portable devices within safe ranges. While these results are encouraging, continued efforts should be made to educate users of portable listening devices on the negative effects of music-induced hearing loss.


Narrative Language Assessment And Intervention: Applications With Children With And Without Disabilities, Norah M. Almubark Apr 2024

Narrative Language Assessment And Intervention: Applications With Children With And Without Disabilities, Norah M. Almubark

USF Tampa Graduate Theses and Dissertations

Narrative is the art of conveying a sequence of causally and temporally linked events through monologic telling. Various functions can be served through narratives including sharing experiences, expressing ideas, providing entertainment, and imparting cultural or social values. Narrative language represents an authentic type of language that is useful for assessment and intervention because it can be analyzed according to content and form. The ability to use complex narrative language and produce quality narratives is associated with long-term academic and social benefits (Uccelli et al., 2019; Suggate et al, 2018). Given this crucial link, narrative language is suitable for child language …


Toward Generalizable Machine Learning Models In Speech, Language, And Hearing Sciences: Estimating Sample Size And Reducing Overfitting, Hamzeh Ghasemzadeh, Robert E Hillman, Daryush D Mehta Mar 2024

Toward Generalizable Machine Learning Models In Speech, Language, And Hearing Sciences: Estimating Sample Size And Reducing Overfitting, Hamzeh Ghasemzadeh, Robert E Hillman, Daryush D Mehta

Faculty, Staff and Student Publications

PURPOSE: Many studies using machine learning (ML) in speech, language, and hearing sciences rely upon cross-validations with single data splitting. This study's first purpose is to provide quantitative evidence that would incentivize researchers to instead use the more robust data splitting method of nested

METHOD: First, the significant impact of different cross-validations on ML outcomes was demonstrated using real-world clinical data. Then, Monte Carlo simulations were used to quantify the interactions among the employed cross-validation method, the discriminative power of features, the dimensionality of the feature space, the dimensionality of the model, and the sample size. Four different cross-validation methods …


Behavioral Management Of Respiratory/Phonatory Dysfunction For Dysarthria Associated With Neurodegenerative Disease: A Systematic Review, Sarah E. Perry, Michelle Troche, Jessica E. Huber, Jordanna Sevitz, James Curtis, Brianna Kiefer, Qiana Dennard, Deanna Britton, Multiple Additional Authors Mar 2024

Behavioral Management Of Respiratory/Phonatory Dysfunction For Dysarthria Associated With Neurodegenerative Disease: A Systematic Review, Sarah E. Perry, Michelle Troche, Jessica E. Huber, Jordanna Sevitz, James Curtis, Brianna Kiefer, Qiana Dennard, Deanna Britton, Multiple Additional Authors

Speech and Hearing Sciences Faculty Publications and Presentations

Purpose:

This systematic review represents an update to previous reviews of the literature addressing behavioral management of respiratory/phonatory dysfunction in individuals with dysarthria due to neurodegenerative disease.

Method:

Multiple electronic database searches and hand searches of prominent speech-language pathology journals were conducted in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses standards.

Results:

The search yielded 1,525 articles, from which 88 met inclusion criteria and were reviewed by two blinded co-investigators. A large range of therapeutic approaches have been added to the evidence base since the last review, including expiratory muscle strength training, singing, and computer- and device-driven …


The Adverse Childhood Experiences Identification Gap In Speech Language Pathology, Mallory Prior Mar 2024

The Adverse Childhood Experiences Identification Gap In Speech Language Pathology, Mallory Prior

College of Education and Human Sciences: Dissertations, Theses, and Student Research

Children exposed to adverse childhood experiences, a variety of potentially traumatic events occurring within the first 18 years of life, are at increased risk for speech and language disorders. Due to the high prevalence of trauma and its lasting effects, it is almost guaranteed that children who are experiencing the ongoing effects from adversity will be found on practicing Speech Language Pathologists’ caseloads. This scoping review was designed to identify current screening practices of Speech Language Pathologists (SLP) in comparison to other professionals (e.g., allied health and education), as well as additional information related to screening procedures for SLPs. The …


Acceptance Of Bite Presentations And Feeding Behaviors Of 8 To 12-Month-Old Infants: A Reflection Of Typical Feeding Development, Amy Delaney, Ericka Diestler, Parama Sridevi, Arafat Mahmood, Sheikh Iqbal Ahamed Mar 2024

Acceptance Of Bite Presentations And Feeding Behaviors Of 8 To 12-Month-Old Infants: A Reflection Of Typical Feeding Development, Amy Delaney, Ericka Diestler, Parama Sridevi, Arafat Mahmood, Sheikh Iqbal Ahamed

Speech Pathology and Audiology Faculty Research and Publications

Purpose

The lack of age-appropriate expectations for feeding acceptance patterns in early childhood is a barrier to early and accurate identification of pediatric feeding disorder (PFD). The objective of the study was to describe the process by which typically developing children 8–12 months of age accept or refuse bite presentations and their corresponding feeding behaviors, aiming to establish age-appropriate normative data for feeding acceptance.

Method

Using cross-sectional methodology, we studied the proportion of bite presentations accepted, the type of feeding behaviors-passive, disruptive, expulsion, feeding concerns- observed at presentation and acceptance or refusal, and the duration between presentation to acceptance or …


The Cross-Linguistic And Cross-Situational Association Between Accentedness And Its Impact As Rated By Speakers, Makaila Groves Jan 2024

The Cross-Linguistic And Cross-Situational Association Between Accentedness And Its Impact As Rated By Speakers, Makaila Groves

The Journal of Purdue Undergraduate Research

No abstract provided.


The Role Of Vocal Development Patterns: Predicting Neurogenetic Risk In Infancy Using Early Vocal Development And Sex, Alyssa Cregg, Rachel Siela, Olivia Battaglia, Kaylee Bobay, Madison Chin, Athena Fordwor, Conghao Gao, Deeksha Handa, Erin Lee, Tiernan Mcdivitt, Grace Strabala, Victoria Tuell, Laurel Williams Jan 2024

The Role Of Vocal Development Patterns: Predicting Neurogenetic Risk In Infancy Using Early Vocal Development And Sex, Alyssa Cregg, Rachel Siela, Olivia Battaglia, Kaylee Bobay, Madison Chin, Athena Fordwor, Conghao Gao, Deeksha Handa, Erin Lee, Tiernan Mcdivitt, Grace Strabala, Victoria Tuell, Laurel Williams

The Journal of Purdue Undergraduate Research

Extant literature documents a higher rate of language/speech disorders in males; however, despite sex being a potential moderator of outcomes, we do not know what role it plays in early vocal behavior of infants at high risk for such disorders. The purpose of this study was to ask: (1) Do high-risk infants demonstrate atypical vocal development patterns? (2) Is the quality and quantity of early babble distinct for male and female infants, and does this pattern vary across risk? To answer these questions, we examined the canonical babbling ratio (CBR; the ratio of canonical syllables, those with a consonant and …


“Your Legs Don’T Look All That Good” An Analysis Of Impoliteness And Politeness In Individuals With Traumatic Brain Injuries In The Workplace, Grace Kozal Jan 2024

“Your Legs Don’T Look All That Good” An Analysis Of Impoliteness And Politeness In Individuals With Traumatic Brain Injuries In The Workplace, Grace Kozal

Theses and Dissertations--Communication Sciences and Disorders

Background: Social communication disorders are a common outcome from traumatic brain injury (TBI). This social communication disorder can be seen through impolite speech acts during conversation. While politeness is a social norm for workplace discourse, instances of impoliteness may have poor consequences. This research explores the use of impoliteness in persons with TBI within computer generated work-based conditions.

Methods: Language samples from the Voicemail Elicitation Task (VET) and Feedback/Advice Spoken Task (FAST) were transcribed word-for-word. Transcripts from all 62 participants were coded for impoliteness using a developed Impoliteness Codebook and were analyzed to identify significant differences in the number of …


Applying The Evidence: Taste Manipulation As A Dysphagia Management Strategy, Ross M. Westemeyer, Angela M. Dietsch, Rachel W. Mulheren Jan 2024

Applying The Evidence: Taste Manipulation As A Dysphagia Management Strategy, Ross M. Westemeyer, Angela M. Dietsch, Rachel W. Mulheren

Department of Special Education and Communication Disorders: Faculty Publications

Purpose: This narrative review aims to summarize the evidence regarding taste manipulation as a dysphagia management strategy within the evidence-based practice framework, with a focus on clinical application for speech-language pathologists.

Method: First, we present background information on the physiology of taste and swallowing. A summary of research evidence on the effect of taste on swallowing is presented, followed by suggested methods for incorporating taste into swallowing evaluation and intervention. An overview of individual factors that can impact taste perception is provided. Finally, we discuss methods of clinical application and future directions for clinicians.

Conclusions: Although taste …


Using A Translanguaging Framework To Examine Language Production In A Trilingual Person With Aphasia, Mira Goral, Katarina Antolovic, Zahra Hejazi, Franziska M. Schulz Jan 2024

Using A Translanguaging Framework To Examine Language Production In A Trilingual Person With Aphasia, Mira Goral, Katarina Antolovic, Zahra Hejazi, Franziska M. Schulz

Publications and Research

When language abilities in aphasia are assessed in clinical and research settings, the standard practice is to examine each language of a multilingual person separately. But many multilingual individuals, with and without aphasia, mix their languages regularly when they communicate with other speakers who share their languages. We applied a novel approach to scoring language production of a multilingual person with aphasia. Our aim was to discover whether the assessment outcome would differ meaningfully when we count accurate responses in only the target language of the assessment session versus when we apply a translanguaging framework, that is, count all accurate …


Scholarship Of Teaching And Learning In Communication Sciences And Disorders: Past, Present, And Future, Sarah M. Ginsberg, Colleen F. Visconti, Jennifer C. Friberg Jan 2024

Scholarship Of Teaching And Learning In Communication Sciences And Disorders: Past, Present, And Future, Sarah M. Ginsberg, Colleen F. Visconti, Jennifer C. Friberg

Books - Communication Sciences and Disorders

No abstract provided.


Developmental Change In English-Learning Children’S Interpretations Of Salient Pitch Contours In Word Learning, Carolyn M. Quam, Daniel Swingley Jan 2024

Developmental Change In English-Learning Children’S Interpretations Of Salient Pitch Contours In Word Learning, Carolyn M. Quam, Daniel Swingley

Speech and Hearing Sciences Faculty Publications and Presentations

To efficiently recognize words, children learning an intonational language like English should avoid interpreting pitch-contour variation as signaling lexical contrast, despite the relevance of pitch at other levels of structure. Thus far, the developmental time-course with which English-learning children rule out pitch as a contrastive feature has been incompletely characterized. Prior studies have tested diverse lexical contrasts and have not tested beyond 30 months. To specify the developmental trajectory over a broader age range, we extended a prior study (Quam & Swingley, 2010), in which 30-month-olds and adults disregarded pitch changes, but attended to vowel changes, in newly learned words. …


The Critical Need For Early Language Access For Deaf And Hard Of Hearing Children, Kinya D. Embry-Wright Jan 2024

The Critical Need For Early Language Access For Deaf And Hard Of Hearing Children, Kinya D. Embry-Wright

Theses and Dissertations--Rehabilitation Sciences

According to the American Speech-Language-Hearing Association (ASHA), speech-language pathologists (SLPs) are referred to as the experts of communication (ASHA, n.d.) utilizing their specialized training, extensive education, and clinical expertise to work with individuals across the lifespan with a variety of different speech and language delays, disorders, and deficits. However, when working with deaf or hard of hearing (DHH) children, there is often precedent given to speech and listening (M. L. Hall et al., 2019). For example, ASHA only recently updated their DHH portal to include American Sign Language (ASL), though they still list it on some webpages as an Augmentative …


Lack Of Protocol Standardization For Vestibular Evoked Myogenic Potentials, Kendall J. Werhane Jan 2024

Lack Of Protocol Standardization For Vestibular Evoked Myogenic Potentials, Kendall J. Werhane

Graduate Theses/Dissertations

Vestibular Evoked Myogenic Potentials (VEMPs) are used in the field of Audiology to allow us to evaluate otolith and vestibular nerve function, which provides us with information that prior testing could not exclusively identify. While the collection of data from VEMPs is useful for many audiologic and vestibular diagnoses, achieving accurate recordings can be challenging due to the complex nature of testing. The article below will take a deep dive into different VEMP devices and the protocol they used to record VEMPs on their participants. The purpose of developing state-of-the-art (SOTA) equipment for VEMP testing is to ensure that the …


How Phonological And Syntactic Overlap Impact Cognate Processing Speeds In Bilinguals, Ella Marie Peterson Jan 2024

How Phonological And Syntactic Overlap Impact Cognate Processing Speeds In Bilinguals, Ella Marie Peterson

Undergraduate Theses, Professional Papers, and Capstone Artifacts

This paper investigates individuals who are proficient in two languages (bilinguals) and the speeds at which bilinguals process cognates (words with comparable form and meaning across languages). This paper cites two ongoing experiments: The Language Identification (LID) task and the Self-Paced Listening (SPL) task. Findings from the LID suggest that phonological overlap in cognates facilitates bilingual language processing speeds, when cognates are presented in isolation. Findings from the SPL suggest that syntactic overlap in cognates also facilitates bilingual language processing speeds, when cognates are presented in sentences. These findings are significant in that the tasks present cognates to participants in …


Understanding The Effects Of Hormone Treatments On The Transgender Singer: A Pedagogical Study And Voice Studio Guide, Erin M. Hannon Jan 2024

Understanding The Effects Of Hormone Treatments On The Transgender Singer: A Pedagogical Study And Voice Studio Guide, Erin M. Hannon

Theses and Dissertations--Music

Transitioning from one gender to another can be an arduous and emotionally charged experience, accompanied by many physical and mental transformations. The journey of self-discovery and vocal explorations is both unique and deeply personal. Modifications that emerge in an individual's vocal characteristics have a profound influence on their capacity to communicate and express themselves.

Transgender vocal students and professional singers must navigate the delicate balance between their vocal and gender identities while considering the possible risks of Gender Affirming Hormone Therapy. Though these therapies may significantly alter one's appearance and overall well-being, they are also capable of causing notable declines …


An Impedance Tube Technique For Estimating The Insertion Loss Of Earplugs, K. Carillo, O. Doutres, F. Sgard Jan 2024

An Impedance Tube Technique For Estimating The Insertion Loss Of Earplugs, K. Carillo, O. Doutres, F. Sgard

Études primaires

This paper proposes a quick and straightforward technique for estimating the insertion loss (IL) of earplugs measured on an acoustical test fixture (ATF) using a commercial impedance tube. In this method, the earplug's acoustic properties (i.e., its transmission loss and the reflection coefficient of its medial surface) are determined from its transfer matrix measured using the three-microphones impedance tube method modified here for the current application. The IL is then estimated using a one-dimensional analytical model of open and occluded earcanals based on the wavefield decomposition theory. The method is evaluated numerically and experimentally from 50 Hz to 6.5 kHz. …