Differential Sensitivity
The frequency range where just noticeable difference is the smallest
What is 500-3000 Hz?
A listeners ability to respond to a stimulus under uncertainty
What is signal detection theory?
This azimuth gives the greatest head shadow
What is 90 degrees?
Used primarily for hearing low frequency sounds by bone
What is inertial forces?
The age range where hearing sensitivity starts to decrease
What is 25-30 years old?
Found that the jnd between 2 stimuli is an amount relative to the value of the original signal
What is Weber's law?
When a sound is presented and the listener raises their hand
What is a hit?
The theory that describes how we localize low and high frequency sounds
What is the duplex theory of localization?
The temporal bone moves in portions
What is compressional forces?
The predisposition for a listener to respond to a stimulus a certain way
What is a prepatory set?
The reason all increases in intensity aren't equal
What are ratios?
An incorrect response to a test stimulus presentation
What is a miss? (raise your hand)
The smallest minimum audible angle is achieved at this azimuth
What is zero degrees
An enhancement in hearing when plugging the ear canals
What is the occlusion effect?
Range of frequencies tested in a hearing test
What is 250-8000 Hz?
The shortest interruption of a signal that can be detected
What is gap detection thresold?
No sound was presented and the listener raises their hand
What is a false positive?
Used to localize high frequency sounds
What are interaural level differences?
Bone conduction hearing that includes the ear canal and tympanic membrane
What is osseotympanic forces?
Normal hearing threshold range
What is 0-25 dBHL?
As the stimulus intensity increases, this happens to the diffrence limen for frequency
What is it becomes smaller?
Number of possible outcomes on a test trial
What is four?
This azimuth has no ITD or IID
What is zero degrees (or 180 degrees)?
The path that sounds travel to the cochlea by air conduction
What is outer, middle, and inner ear?
The lowest level of a stimulus that a listener responds to at least 50% of the time
What is threshold?