All Flashcards
Compare sensorineural and conduction hearing loss.
Sensorineural: damage to inner ear/auditory nerve. Conduction: damage to outer/middle ear.
Compare Place Theory and Frequency Theory.
Place Theory: High-pitched sounds, location on basilar membrane. Frequency Theory: Low-pitched sounds, rate of neural impulses.
What is Audition?
The sense of hearing; how the brain interprets sound waves.
What is Amplitude?
The height of a sound wave; determines loudness (measured in decibels).
What is Frequency?
Number of wavelengths passing a point per second; determines pitch.
What is Timbre?
The quality of sound distinguishing instruments/voices with same pitch/loudness.
What is the Pinna?
The visible part of the outer ear; funnels sound waves.
What is the Tympanic Membrane?
The eardrum; vibrates when hit by sound waves.
What is the Cochlea?
Snail-shaped structure in inner ear; contains basilar membrane and hair cells.
What are Hair Cells?
Sensory receptors on the basilar membrane; transduce mechanical energy into neural impulses.
What is Sensorineural Hearing Loss?
Hearing loss due to damage to cochlea's hair cells or auditory nerve.
What is Conduction Hearing Loss?
Hearing loss due to damage in outer or middle ear, preventing sound waves from reaching the cochlea.
How is amplitude applied in real life?
Adjusting the volume on a music player.
How can cochlear implants help?
Cochlear implants can help individuals with sensorineural hearing loss by directly stimulating the auditory nerve.
How can hearing aids help?
Hearing aids can help individuals with conduction hearing loss by amplifying sounds.
How is frequency applied in real life?
Tuning a musical instrument.
How does sound localization help us?
Allows us to identify the location of a car approaching.
How is the understanding of timbre used?
Distinguishing between different instruments playing the same note.
How is the concept of amplitude used in hearing protection?
Using earplugs to reduce the amplitude of loud sounds to prevent hearing damage.
How is frequency used in medical diagnostics?
Using audiometry to test hearing sensitivity at different frequencies to identify hearing loss.
How is sound localization used in virtual reality?
Creating immersive audio experiences where sounds appear to come from specific locations in the virtual environment.
How is the volley principle applied in music?
Enables the perception of complex musical tones that involve a combination of different frequencies.