Sensation and perception - Daniels units Flashcards
Pinna
the pinna is the part of your ear you pierce and is shaped in such a way that it helps to filter the sound into the ear canal toward the tympanic membrane
Tympanic membrane
(eardrum) works like the surface of a drum and transfers energy to the three smallest bones in the body Ossicles
ossicles
three smallest bones (malleus, incus, stapes) in the ear responsible for amplifying vibrations arriving in the eardrum and transmitting these signals to the oval window of the cochlea
Cochlea
sounds processor of the inner ear, sounds are then transferred into the neural language of the brain
Basilar membrane
tissue inside the cochlea where the hair cells are located
Transduction
The process by which external sensations are converted into neural firing in the brain
Loudness/volume of sounds corresponds to…
Amplitude of the wave
Auditory hair cells
convert sounds into neural firings
Sound Localization
is the process of determining location of a sound source often by auditory cues
Binaural cues
Auditory cues that require the process of comparison of information from both ears to determine objects location
interaural time differences
Comparisons made between the small differences in arrival time of a sounds in each ear
Place theory
The theory of audition that suggests we understands pitch because of the location of firing on the basilar membrane
Frequency theory
the theory of audition that suggests we understand pitch because of the rate of cellular firing on the basilar membrane
Chemoreceptors
Sensory cells in the nose that respond to air molecules that we interpret as smell and taste
Olfactory mucosa
The tissue that contains the chemoreceptors of the nose