Tonotopic frequency ordering persists from cochlea to auditory cortex

Evidence

Whether or not two components that are of similar amplitude and close together in frequency can be discriminated depends on the extent to which the basilar membrane displacements, due to each of the two components, are clearly separated. — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 573 (#corroborates, via linked claim)

Categorization

• XREF: connects to: Just-noticeable frequency shifts map to constant basilar distances — Professor Dr.-Ing. Hugo Fastl, Professor Dr.-Ing. Eberhard, Psychoacoustics- Facts and Models, 929; Cochlear resonance and tonotopic pitch mapping were theorized as early as 1683; The cochlea’s logarithmic place analysis explains why musical intervals sound the same across registers. (+3 more)

Related

• Frequency discrimination depends on basilar membrane displacement separation (similarity 0.90)
• Just-noticeable frequency shifts map to constant basilar distances (similarity 0.89)
• Basilar membrane stiffness gradients create a frequency-to-place mapping (similarity 0.88)
• The basilar membrane’s tapering shape enables it to sort sounds by frequency. (similarity 0.86)
• The ear analyzes frequencies by location along the basilar membrane. (similarity 0.85)
• Hearing two tones as separate requires separate basilar membrane peaks (similarity 0.84)
• The cochlea’s logarithmic place analysis explains why musical intervals sound the same across registers. (similarity 0.83)
• Cochlear resonance and tonotopic pitch mapping were theorized as early as 1683 (similarity 0.82)
• The same musical interval’s dissonance changes with pitch register (similarity 0.82)
• Higher-frequency auditory filters carry more intensity-difference information than the signal-centered filter (similarity 0.82)
• Similar frequencies mask each other by competing for the same cochlear location. (similarity 0.82)
• The basilar membrane’s mechanics enable the inner ear’s frequency analysis (similarity 0.82)
• Place theory claims pitch is encoded by basilar membrane position (similarity 0.81)
• Equal frequency ratios occupy equal perceptual distances regardless of starting pitch (similarity 0.81)
• Absolute frequency discrimination worsens as reference frequency increases (similarity 0.81)

Broader Connections

• The cochlea’s logarithmic place analysis explains why musical intervals sound the same across registers. #corroborates (0.82)
• Frequency discrimination depends on basilar membrane displacement separation #corroborates (0.75) — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 573