cluster: s-course psychoneuro
resource: course-brain_building_block
some keywords from 2025-12-12
av hmi
automotive ui conference25
self driving car
Mechanics of hearing
by yuttana.r@chula.ac.th
Basics of Sound Waves
- sound = pressure
- rms
- 2x10-5 pascal vs 20 pascal
- reflections
- acoustic impedance
the middle ears
- movable structure
- malleus
sound propagation inside the cochlea
- organs
- ihcs
- outer hair cell ohcs : amplifiers
- diff freq will make cochlea vibrate in diff parts
cochlear tonotopic map
- narrower,stiffer vs broader, more compliant
- natural freq= sqr stiffness/mass
- similar to ocean wave occurred in shallow vs deep zone
hair cells
- mechanical gating
- mechanical properties of bundle
- bundle stiffness, receptor potential, and displacement
- phenomenological model
- electromotility
- cochlear amplifier: without this, we can’t hear low freq
- Otoacoustic emissons (OAEs)
- Comparative studies of OAEs
- frogs, tokay gecko
- organ: tympanum and …
- we can actually attach mic to their ear and get freq
peripheral
idea: light from jellyfish - make the frog emit when stress to help sci bros
The Oddball Paradigm and Mismath Negativity
by Jamie O’Reily
keywords
- ERP event related potential
The Oddball Paradigm
- 80% normal 20% mismatch (deviant)
Mismatch Negativity (MMN)
- ??
Sensory-memory Violation / Prediction Error
- many researches
- predictive coding theory
- sensory input >> phy feature abstraction >> deviance detection, …
Confounds of the Oddball Paradigm
- stimulus-specific adaption
- auditory response sensitivity to physical properties of stimuli
Control Paradigms
- some flip-flop, roving test that I don’t understand
Confounds of the Control Paradigms
Summary
- MMN might be a sensory prediction-error signal
- difference waveform acan obscure the effect
- control paratigism suffer from confounds
- implications for clinical and preclinical research
created on: Fri Dec 12 2025