|
Topics
Neurons
Psychophysics
Vision
Audition
Skin Senses
Hanover College
Psychology Department
| |
Audition
- The Sound Stimulus
- Sound Basics.
Illustration of the sound stimulus. Explore the effects of
intensity and frequency on your perception of the sound and the various
features of a sound wave, e.g, compression, rarefaction and phase.
- Reception and Transduction
- The Middle Ear. See the
working of the ossicles of the middle ear and how their motions depend
upon the frequency of the sound.
- The Cochlea. An
illustration of the function of the inner ear in response to sound
stimuli.
- The
Ear. Observe the transmission of the sound stimulus through the
ear.
- The Hair Cell and Transduction.
Observe how the sound stimulus affects the hair cell to cause
transduction.
- Processing Frequency
- Ohm's Acoustical
Law. Experience how our auditory system can hear individual
frequencies out of a complex tone.
- Fourier Analysis in Audition.
Illustration of how Fourier Analysis can break down a complex waveform
into the individual frequencies.
- The Decibel Scale.
Get a sense of the perceptual significance of the decibel scale by
hearing sequences of tones differing by different numbers of decibels.
- The encoding of frequency
- The Place Theory. See
how different frequencies impact the travelling wave which forms the
basis of place theory.
- Frequency Theory.
See how the frequency of a stimulus is related to the firing rate of a
single neuron which forms the basis of frequency theory.
- Volley Principle.
Illustration of how having multiple neurons allows the encoding of
higher frequency tones in Frequency Theory.
- Auditory Localization
- The Head in Sound Space.
Illustration of how sound the travelling of sound to the two ears can
play a role in determining direction.
- Time of Arrival and Phase.
Use headphones to experience how the time of arrival or difference in
phase between the two ears can be an a cue to the direction of the
sound.
- Relative Loudness.
Use headphones to illustrate to how the relative intensity of sounds in
the two ears can influence the perception of direction of a sound.
Neuroscience Animation Home
|
