Education & Resources
- Conductive Hearing Loss
Humans have and ear drum and tiny bones in the middle ear that conduct sound in a mechanical way. Sometimes, due to a number of reasons (see below for examples) the middle ear cannot conduct or transmit sound to the inner ear (an important part of the auditory system) producing hearing loss. This hearing loss is usually manifested as a reduction in sound level or the ability to hear faint sounds. This type of hearing loss can often be corrected medically or surgically or improved by the use of a hearing aid.Some possible causes of conductive hearing loss:
- Impacted earwax (cerumen)
- Perforated eardrum
- Fluid in the middle ear from colds
- Ear infection (otitis media)
- Allergies (serous otitis media)
- Benign tumors
- Poor eustachian tube function
- Presence of a foreign body
- Infection in the ear canal (external otitis)
- Surfers ear (exotosis)
- Absence or malformation of the outer ear, ear canal, or middle ear
- Sensorineural Hearing Loss (SNHL)
Humans have an inner ear (cochea) and neural pathways that take the sound from the conduction pathways and transmit to higher levels up the auditory pathyway. Hearing loss occurs when there is damage to the cochlea or to the nerve pathways from the inner ear to the brain. SNHL usually cannot be medically or surgically corrected. This is the most common type of permanent hearing loss and can be successfully treated with hearing aids.Some possible causes of SNHL:
- Exposure to loud noise or music
- Hereditary congenital (at birth) loss
- Hearing loss that runs in the family (genetic or hereditary)
- Head trauma
- Malformation of the inner ear
- Drugs that are toxic to hearing
- Sudden hearing loss that is unexplained
- Mixed Hearing Loss
Humans may have damage in the outer or middle ear and in the inner ear (cochlea) or auditory nerve providing both a conductive and SN Hearing loss. A mixed hearing loss is when both types of losses are present. Sometimes this can be medically treated although because of the permanent nature of the loss hearing aids are often preferred.
*(Central) auditory processing disorder [(C)APD] refers to difficulties in the processing of auditory information in the central nervous system (CNS) as demonstrated by poor performance in one or more of the following skills: sound localization and lateralization; auditory discrimination; auditory pattern recognition; temporal aspects of audition, including temporal integration, temporal discrimination (e.g., temporal gap detection), temporal ordering, and temporal masking; auditory performance in competing acoustic signals (including dichotic listening); and auditory performance with degraded acoustic signals.
Non-modality-specific cognitive processing and language problems may manifest themselves in auditory tasks (i.e., as listening problems); however, diagnosis of (C)APD requires demonstration of a deficit in the neural processing of auditory stimuli that is not due to higher order language, cognitive, or related factors. This working group concluded after a comprehensive review of the literature that any definition of (C)APD that would require complete modality-specificity as a diagnostic criterion is neurophysiologically untenable; however, one should expect the sensory processing perceptual deficit in (C)APD to be more pronounced, in at least some individuals, when processing acoustic information. (C)APD is best viewed as a deficit in neural processing of auditory stimuli that may coexist with, but is not the result of, dysfunction in other modalities. (C)APD can also lead to or be associated with difficulties in learning (e.g., spelling, reading), speech, language, attention, social, and related functions. Because of the complexity and heterogeneity of (C)APD, combined with the heterogeneity of learning and related disorders, it is to be expected that a simple, one-to-one correspondence between deficits in fundamental, discrete auditory processes and language, learning, and related sequelae may be difficult to demonstrate across large groups of diverse subjects. This underscores the need for comprehensive assessment and diagnostic procedures that fully explore the nature of the presenting difficulties of each individual suspected of having (C)APD.
*Working group on Auditory processing disorders, ASHA.
Articles of importance on Audiotory processing and relations to Attention Deficit Disorder and other cognitive correlates.
iLs has a global effect on the brain and central nervous system, influencing the following systems: balance, visual, auditory, motor, coordination, behavior and emotional regulation. As a result, it is successfully implemented for a wide variety of conditions:
- Learning difficulties, reading, auditory processing
- Attention & regulation
- Sensory processing
- Speech & Language
- Autism and other neuro-developmental difficulties
“We consistently see excellent results with iLs with regard to attention and learning problems… iLs works at a neurological level so it’s a great complement to the behavioral, cognitive and medical approaches we use at Hallowell Centers”
Edward Hallowell, MD, Harvard Medical faculty, author of Driven to Distraction
- Custom fit to the shape of your ear
- Fits snugly
- Does not get in the way when shooting (unlike earmuffs or headsets)
- Robust elastic UV material
- Proven 312-type Siemens batteries provide up to 230 hours operation
Europe, especially the U.K., has loops installed everywhere, in theaters, ticket windows and churches. In the US, hearing loops are becoming common in Michigan, Wisconsin and several other states. Minnesota doesn’t have many loops yet, but we are helping spread the word, and the number is growing. Maybe your church or synagogue will be next!