10 Questions
What guides the pre-natal establishment of tonotopic organization in the cochlea?
Synaptic reorganization
Why does the apical end of the basilar membrane respond best to low-frequency sounds?
As a result of maximal vibration when exposed to low frequencies
What creates tonotopy in the cochlea?
The gradient of frequency response along the basilar membrane
Which part of the cochlea responds best to high frequencies?
Hair cells located at the basal end
How are hair cells in the cochlea activated?
By shearing force due to basilar membrane vibration
What is tonotopy in physiology?
The processing of sounds of different frequencies in the brain
Where does tonotopy originate in the auditory system?
Cochlea
What characteristic of the basilar membrane allows nerves to encode frequency tonotopically?
Varying thickness and width along its length
How is tonotopic mapping related to retinotopy in the brain?
Both involve organizing sensory information based on spatial locations
What is the role of the vestibulocochlear nerve in tonotopy?
Carrying tonotopy information to the primary auditory cortex
Learn about tonotopic mapping in physiology and how sounds of different frequencies are processed in the brain. Discover how similar frequency sounds are processed in nearby regions of the brain, known as topographic representation, with tonotopic maps as a specific example.
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