[ Browse by Service Category : Target Populations : Sub-Topics of Disabilities and Health Conditions (21) ]

Health Conditions

Acute or chronic illnesses, injuries or other pathological conditions which affect the individual's physical well-being.

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Hearing Loss

A disruption in the normal hearing process that may occur in the outer, middle, or inner ear, which prevents sound waves from being converted to electrical signals and nerve impulses from being transmitted to the brain to be interpreted. Included are conductive hearing loss that results from abnormalities of the external ear and/or the ossicles of the middle ear; sensorineural hearing loss that results from malfunction of inner ear structures (i.e., cochlea); and central auditory dysfunction that results from damage or dysfunction at the level of the eighth cranial nerve, auditory brain stem, or cerebral cortex. Hearing loss may be present at birth (congenital) or become evident later in life (acquired); and may or may not preclude the normal development of language. The severity of hearing loss is measured in decibles (dB). The threshold or 0 dB mark for each frequency refers to the level at which typical young adults perceive a tone burst 50% of the time. Hearing is considered normal if an individual's thresholds are within 15 dB of normal thresholds. Severity of hearing loss is graded as mild (26-40 dB), moderate (41-55 dB), moderately severe (56-70 dB), severe (71-90 dB) and profound (90 dB).

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Mental Illness/Emotional Disabilities

An alteration in thinking, mood or behaviour or some combination of those that either creates distress or interferes with people's relationships or their ability function.

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Multiple Disabilities

A combination of two or more significant cognitive, physical and/or sensory disabilities.

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Physical Disabilities

Any of a variety of conditions that may be due to muscular, skeletal or neuromuscular disorders, paralysis or absence of one or more limbs, which impose physical limitations on the individual.

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The above terms and definitions are part of the Taxonomy of Human Services, used here by permission of INFO LINE of Los Angeles.