Dr. Kim & Dr. Cadieux
Module 11.1 & 11.2 – Audition (Auditory Mechanisms)
Is sound strictly a sensory process?
o If a tree falls in the forest and no one is around to hear it, does it still make
Sound Waves and Auditory Systems
The auditory system translates sound waves into audition.
o The auditory system can translate sound waves from vibrating objects into
the psychological experience of audition
Just like the visual system can interpret light waves to collect
information about stimuli in the environment
Therefore, trees make sound waves, but auditory systems make audition
o The sound waves themselves do not make sound unless an auditory system
is present to translate those waves into a perceptual experience
The Auditory Mechanisms of Different Species
Auditory mechanisms vary across species according to specific needs.
o ie. Whether they live in water, land, or air
o ie. Whether they need to communicate over long distances, or need to be
able to receive high or low frequency sounds
Species vary in the