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Chronic |
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Overall effect on quality of life |
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“Invisible” |
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Relative ease of correcting |
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Speech |
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Environmental sounds |
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Losing things |
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Warning signals |
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Two most salient features of sound |
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Frequency |
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How we perceive frequency differences |
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How measure (Hz) |
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Demo of sounds differing in pitch |
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Amplitude |
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How we perceive amplitude differences |
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How we measure (dB) |
|
Demo of sounds differing in amplitude |
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Outer ear |
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Middle ear |
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Inner ear |
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Age related hearing loss – presbycusis |
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Noise exposure (duration x intensity) |
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Walkman effect |
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Gender |
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Environment |
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Background noise |
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Parties – Why this is worst situation for older
adults |
|
Auditoriums – reverberation |
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Loudness recruitment |
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Define |
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Hearing aids |
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How effective |
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Problems |
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Cosmetic (not as big an issue today) |
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Non-selective amplification |
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Digital hearing aids |
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Simulating hearing aids |
|
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|
|
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Explain |
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Oldest fastest growth |
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How effective |
|
Speech vs. environmental sounds |
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Importance of cognitive factors |
|
Implanting AD patients? |
|
Notes