Pitch; related inversely to freuency

Damage to the cochlea’s hair cell receptors or the auditory nerve can cause sensorineural hearing loss. With auditory nerve damage, people may hear sound but have trouble discerning what someone is saying.

Damage to the mechanical system—the eardrum and middle ear bones—that conducts sound waves to the cochlea can cause conduction hearing loss. It is less common than sensorineural hearing loss.

Brain interpreting loudness

A soft, tone activates only the few hair cells attuned to its frequency. Given louder sounds, neighboring hair cells also respond. Thus, the brain interprets loudness from the number of activated hair cells

we hear different pitches because different sound waves trigger activity at different spots along the cochlea’s basilar membrane. Thus, the brain determines a sound’s pitch by recognizing the specific area that is generating the neural signal

Frequency theory (temporal theory)

monitoring the frequency of neural impulses traveling up the auditory nerve. basilar membrane vibrates with the incoming sound wave, triggering neural impulses to the brain at the same rate as the sound wav Single neuron fires at the same rate as sound.

using groups of neurons to fire in a way that creates a higher frequency than a single neuron could produce (like with frequency theory)By firing in rapid succession, neurons can achieve a combined frequency above 1000 waves per second

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AP Psych section 2.c

Question	Answer
Wavelength	Pitch; related inversely to freuency
Amplitude	Magnitude
sensorineural	Damage to the cochlea’s hair cell receptors or the auditory nerve can cause sensorineural hearing loss. With auditory nerve damage, people may hear sound but have trouble discerning what someone is saying.
conduction	Damage to the mechanical system—the eardrum and middle ear bones—that conducts sound waves to the cochlea can cause conduction hearing loss. It is less common than sensorineural hearing loss.
Brain interpreting loudness	A soft, tone activates only the few hair cells attuned to its frequency. Given louder sounds, neighboring hair cells also respond. Thus, the brain interprets loudness from the number of activated hair cells
Place theory	we hear different pitches because different sound waves trigger activity at different spots along the cochlea’s basilar membrane. Thus, the brain determines a sound’s pitch by recognizing the specific area that is generating the neural signal
Frequency theory (temporal theory)	monitoring the frequency of neural impulses traveling up the auditory nerve. basilar membrane vibrates with the incoming sound wave, triggering neural impulses to the brain at the same rate as the sound wav Single neuron fires at the same rate as sound.
Volley theory	using groups of neurons to fire in a way that creates a higher frequency than a single neuron could produce (like with frequency theory)By firing in rapid succession, neurons can achieve a combined frequency above 1000 waves per second

Created by: nuhaSalim

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