Deaf Community: Models of Deafness — Comprehensive Notes

Models of Deafness

• The session introduces three main models to understand deafness and disability: medical, social, and cultural-linguistic (capital D Deaf).
• Goal: help students think about how these models apply in different scenarios and how they influence decisions around communication, technology, and community engagement.
• The speaker also references future guest perspectives (Deaf Community with a capital D) and a recommended resource (The Deaf Divide).

Medical Model

• Core purpose: identify and treat hearing loss to enable access to spoken language and hearing.
• Lens: audiological; emphasizes structure and function of the ear.
• Key interventions and technologies: hearing aids, cochlear implants, steroid treatments, and other medical/tech options.
• Concept of disability: deafness is treated as an attribute of the individual needing correction or mitigation.
• Broad cross-disciplinary relevance: similar medical-model thinking appears in other areas (e.g., genetic disorders, vision correction with glasses, medications, genetic screening, physiotherapy).
• Practical implications: strong tech focus; often the default framework in audiology training (bread and butter concepts).

Social Model

• Core idea: disability is a social construct rooted in barriers in society and the environment, not just in the impairment.
• Focus: removing barriers to enable participation and inclusion.
• Environmental/architectural/access considerations: captions/closed captions, Auslan interpreters, sound-field systems, acoustics, lighting, and overall accessibility in public spaces (restaurants, clinics, etc.).
• Example barriers: ramps for wheelchair users; even a single step can be a significant barrier.
• Practical activity: encourage students to think about barriers beyond hearing loss (e.g., access, signage, communication methods).

Cultural-Linguistic Model (Deaf Community; Capital D Deaf)

• Core idea: Deaf people can form a cultural and linguistic minority with a shared history, values, and sign language as a central modality.
• Identity and community: many Deaf individuals see themselves as part of a culture, not as disabled; Deaf culture includes practices like Deaf games and a strong sign language heritage.
• Language and belonging: sign language access is a foundational element of participation in Deaf culture.
• Nuance: not all Deaf individuals belong to or identify with the Deaf community; allyship and cultural sensitivity are important.

Cochlear Implants and the Deaf Community: Tensions and Convergence

• Historical tension: Cochlear implants are often framed in the medical model as a means to access spoken language, which has at times clashed with Deaf community values and identity.
• Evolution in perspectives: there is growing recognition of the need for a balanced approach that respects medical benefits while honoring cultural and linguistic identities.
• Family decision context: most children with hearing loss are born into hearing families with limited prior exposure to Deaf culture; families must navigate options and make informed choices.
• Bilingual/Bicultural approach: side-by-side language development with Auslan (sign language) and spoken language (via hearing aids or cochlear implants).
  • Not about one language replacing the other; aims to provide ongoing access to both modalities.
  • Language immersion and family support are critical; many families face barriers such as learning a second language and accessing Deaf culture.
• Neuroplasticity and timing: early auditory exposure is crucial; the younger the child, the greater the potential for developing spoken language after implantation; late implantation can limit speech perception gains.
• Practical outcomes and options: implants later in life may be used for sound awareness and safety rather than speech, with highly variable outcomes depending on prior language exposure and neural plasticity.
• Bilateral implantation: current best practice often involves simultaneous bilateral implants; risks with bilateral implants include potential loss of residual hearing, which may influence the choice to implant one ear initially.
• Historical milestones mentioned: the development of multichannel cochlear implants in Australia (late 1970s–early 1980s) and mid-1990s approvals for pediatric use; ongoing evolution in technology and eligibility criteria.
• Demographics and information needs: about $90\%$ of children with congenital hearing loss are born to hearing families, underscoring the need for clear, balanced information so families can make informed decisions.

Bilingual/Bicultural Approach: Auslan and Spoken Language

• Definition: a child uses hearing devices (hearing aids or cochlear implants) and learns Auslan as a primary language alongside spoken language.
• Benefits: preserves language access and cultural identity; supports inclusion in both Deaf and hearing communities; enhances long-term language immersion and social belonging.
• Challenges: many families are not fluent in Auslan and must learn it; obtaining and maintaining bilingual language input in the home and community can be difficult and time-consuming.
• Ideal outcome: a bilingual, bicultural approach with equal emphasis on both languages and communities; language accessibility across environments (home, school, community).
• Practical takeaway for clinicians: discuss options with families, including bilingual language planning and resources to support Auslan learning, while acknowledging that not every family can fully implement it.

Lived Experience: Emma’s Story (Narrative Highlights)

• Early life and diagnosis: Emma was not diagnosed with hearing loss until nearly age four and had severe-to-profound loss by then; born after newborn hearing screening; family history largely negative for HL; siblings and early concerns about hearing and speech.
• Language environment:母 (mother) became Auslan interpreter; Emma grew up with oral language but continued signing with family; sign language input remained a part of daily life.
• Education and assistive devices: used FM systems and hearing aids in primary school; FM system caused background noise and reduced overall hearing in classroom; bribery certificates were used to try to get her to wear the FM system; later had a sign-language interpreter in high school but preferred lipreading and notetakers.
• Transition to audiology path: by third year of undergrad, lectures were hard to hear; relied on notes and notetakers; considered cochlear implant due to progressive hearing loss; traveled to Melbourne for assessments; initial speech perception around 6% indicated eligibility for implant.
• Cochlear implant journey: first implant placed a week after her 21st birthday; switch-on occurred two weeks later; initial perception described as faint wind-chime sounds and evolving to clearer environmental sounds; two months after switch-on, she performed a phone interview for a job; later received a second implant, making bilateral implantation a reality.
• Career and identity shifts: transitioned from exercise physiology to audiology; experienced a lack of understanding from a former employer about hearing loss and communication needs (e.g., a suggestion to rely on lipreading and writing instead of accommodations); felt more connected after engaging with the Deaf community and language; taught her own children sign language to maintain communication when implants are off.
• Language and community dynamics: values both hearing and Deaf communities; emphasizes that identity can be fluid and that she is “hearing first, Deaf second,” while being proud of Deaf culture and language; avoids displaying her ears prominently due to stigma.
• Lessons and implications: highlights how access to language shapes identity, career choices, and daily life; stresses the importance of understanding that audiograms alone do not capture functional hearing and real-world communication; underscores the need for clinicians to meet people where they are and to support multiple pathways to communication.
• Practical tips she shares for clinicians: ensure clear, face-to-face communication; avoid talking to someone with their back turned or with aids off; rephrase questions or instructions rather than simply repeating them; recognize and address listening fatigue; acknowledge that each person’s journey is unique and dynamic; consider environmental and cultural factors when planning interventions; avoid assuming a one-size-fits-all approach based on an audiogram.

Practical Implications for Clinicians and Students

• Communication best practices:
  • Always face the person when speaking; ensure they can see your lips and facial expressions.
  • When information isn’t understood, rephrase rather than simply repeating.
  • Favor face-to-face communication and minimize talking with devices (e.g., phones, headphones) between you and the patient when possible.
• Holistic assessment beyond the audiogram:
  • Consider listening fatigue, cognitive load, and daily-life communication needs.
  • Assess functional hearing and real-world communication in addition to pure-tone thresholds.
• Embrace multiple models:
  • Social and cultural considerations may guide accommodations (captions, interpreters, sign language learning opportunities, sign-language exposed home environments).
  • Recognize that Deaf culture and medical interventions can coexist and should be navigated respectfully.
• Cochlear implant counseling:
  • Provide balanced information about historical and current perspectives; discuss goals (speech perception vs. environmental awareness).
  • Discuss options like bilingual/bicultural approaches and the realities of raising a child in a household with or without sign language fluency.
• Family-centered language planning:
  • Support families in making informed decisions that reflect their values, resources, and child’s needs; acknowledge potential barriers such as language access at home and in the community.
• Group education and advocacy:
  • Prepare to discuss Deaf community perspectives; connect families and students with appropriate community resources and supports.

Group Activity Case Study: Infant with Bilateral Profound Hearing Loss

• Case prompt: An infant with bilateral profound hearing loss is born to a hearing family.
• Task for groups: Identify one example from each model (medical, social, cultural) of how an audiologist could support the child and family.
  • Medical model example: consider early use of hearing devices (hearing aids, cochlear implants) and other medical interventions as appropriate; ensure medical options are clearly explained.
  • Social model example: plan for environmental and accessibility supports (captions availability, signage, classroom/clinic acoustics, visual alerts at home); discuss access to interpreters and sign language learning for family.
  • Cultural model example: connect with Deaf community resources; consider bilingual language planning including Auslan exposure; discuss the value of sign language for long-term accessibility and identity.
• Group synthesis: discuss how integrating medical, social, and cultural perspectives supports a broader, more flexible approach to the child’s development and family goals.

The Deaf Divide and Community Resources (Notes)

• The Deaf Divide is recommended as an optional viewing to gain broader perspectives on Deaf community experiences and diverse viewpoints.
• Emphasis on acknowledging multiple valid perspectives and avoiding black-and-white thinking about disability models.
• Students are encouraged to reflect on personal biases and consider how different models might influence clinical decisions and family experiences.

Key References and Takeaways (LaTeX-style Notation)

• Population and family context: $90\%$ of children with congenital hearing loss are born to hearing families.
• Neuroplasticity window: early auditory exposure is most effective up to approximately $3 \text{ to } 4 \text{ years}$ of age for speech perception development.
• Cochlear implant history and practice: development of multichannel implants in the late 1970s–early 1980s; pediatric approval around 1994; modern practice often involves bilateral implants (often simultaneous).
• Language access and identity: bilingual/bicultural approaches promote ongoing access to language and culture across deaf and hearing worlds.