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3.1+hearing+and+language

3.1+hearing+and+language - Hearing Language Todays...

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1 Hearing & Language Hearing & language : square6 Hearing: square6 What are the properties of sound? square6 What are the structures of the auditory system? square6 How do we perceive pitch? square6 How do we localize sounds? square6 Language: square6 What are the causes & symptoms of aphasia & dyslexia? square6 How is language lateralized in the hemispheres? square6 How does the brain process different languages? Today’s Questions Hearing Sound : square6 Frequency: square6 Hertz (Hz) = cycles/second square6 Corresponds most to pitch square6 Amplitude: square6 Decibel (dB) square6 Corresponds to loudness
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2 Sound : 50 100 500 1000 5000 10000 Frequency (Hz) dB level 160 140 120 100 80 60 40 20 0 Pain threshold Hearing threshold Dynamic range of hearing Speech Hearing Sound : Hearing Pure tones (1 frequency) Complex tone (several frequencies) Inner ear Auditory nerve Semicircular canals Oval window Cochlea Round window Outer ear Auditory canal Pinna Tympanum Middle ear Eustachian tube Ossicles Malleus Incus Stapes
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3 Cochlea : Hearing Cochlear canal
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