lecture 4 Flashcards
sound
the experience of hearing
frequency
how often something happens in a given time or space. 1/period
pitch
how high or low a sound is, based on its frequency.
fourier analysis
breaks down complex signals into simple waves of different frequencies
timbre
the unique quality of a sound that makes it different from other sounds
intensity
the strength or power of something
we can detect tones within the frequency range of …
20 - 20.000 Hz
we perceive sounds as particularly loud between
2.000 - 5.000 Hz
function of the ear
transfer the sound waves to the receptors
pinna
the outer part of the ear that catches sound waves and helps us determine where sounds are coming from.
tympanic membrane
eardrum, is a thin membrane in the ear that vibrates when sound waves hit it, helping in hearing.
ossicles
three tiny bones in the middle ear (the malleus, incus, and stapes) that transmit vibrations from the eardrum to the inner ear, helping us hear sounds
oval window
a membrane-covered opening between the middle ear and the inner ear that transfers sound vibrations from the ossicles to the cochlea.
basilar membrane
a structure in the cochlea of the inner ear that vibrates in response to sound, helping to detect different pitches and transmit signals to the brain.
auditory transduction
the process by which sound waves are converted into electrical signals in the inner ear
the organ of corti
a structure in the cochlea of the inner ear that contains sensory cells (hair cells) responsible for converting sound vibrations into electrical signals
cilia
tiny hair-like structures that detect sound vibrations and help with hearing.
tectorial membrane
a structure in the cochlea that helps bend hair cells to trigger sound signals
stereocilia
tiny hair-like structures that help convert sound vibrations into electrical signals.
the place-code
theory that different frequencies of sound are processed at specific locations along the cochlea
the temporal-code
theory that the frequency of sound is represented by the timing of neural firing
tonotopy
the organization of the auditory system
cochlea
a spiral-shaped structure in the inner ear that converts sound vibrations into electrical signals
receptive field
the region of the sensory space in which a stimulus will modify the firing of that neuron
