Term
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Definition
| graphic representation of normal human auditory sensitivity across frequencies |
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Term
| temporal integration (summation) function |
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Definition
| change in threshold as the duration of a stimulus changs |
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Term
| minimum audible pressure (MAP) |
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Definition
| lowest level of sound heard when measuring auditory sensitivity through headphones |
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Term
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Definition
| presentation of auditory stimuli for testing through speakers |
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Term
| minimum audible field (MAF) |
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Definition
| lowest level of soundheard when stimuli are presented through speakers |
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Definition
| multiple or continuous reflections of sound that prolong the existance of the sound within a confined space |
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Term
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Definition
| sound coming directly from a sound sourcw |
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Term
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Definition
| sound that is reflected from any surface |
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Term
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Definition
| reduction of sound level at the ear farther away from the sound source, caused by the presence of the head between the source and the ear. It is a factor in sound localization. |
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Term
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Definition
| acoustic effect of the body's presence in the sound field, caused by absorption and reflection of sound by the body |
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Term
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Definition
| a means of coupling properties of a stimulus to the perception of and response to that stimulus. Various psychophysical methods are used to assess auditory sensitivity |
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Term
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Definition
| method of recording a subject's response stimulus over time and across frequencies, in which the subject controls the stimulus intensity and is asked to keep the signal barely audible |
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Term
| two-alternative forced-choice procedure |
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Definition
| psychophysical test measuring the limits of a client's threshold by presenting sound levels in a random order and asking the client to indicate whether or not the auditory stimulus was present in a given time period |
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Term
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Definition
| hearing loss resulting from the aging process |
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Term
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Definition
| loss of hearing associated with aging and societal factors noxious to the auditory system, such as noise and dietary factors |
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Term
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Definition
| 0 dB hearing level; the median thresholds for many young adults with no auditory pathology. This is the reference used for testing in a clinical setting |
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Term
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Definition
| graph or table showing thresholds in hearing level at different frequencies |
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Term
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Definition
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Term
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Definition
| angle of incidence of a sound wave as it reachesthe head |
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Term
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Definition
| effect of detecting a sound with a greater intensity in one ear relative to the other ear as being located nearer to the ear receiving more intesne stimulus. If the sound intensity changes in one ear, the listener will perceive the sound source as moving. |
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Term
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Definition
| smallest separation of angles of incidence that can be perceived |
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Term
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Definition
| orientation of a sound source directly in front of the listener |
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Term
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Definition
| transmission of sound waves to the inner ear through vibration of the bones of the skull |
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Term
| intertial bone conduction |
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Definition
| bone conduction caused by intertia of the ossicular chain. Vibration of the skull causes movement of the oval window while the ossicles' inertia delays their movement |
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Term
| compressional bone conduction |
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Definition
| bone conduction resulting from segmental vibration of the bones of the skull. different positions of the temporal bone vibratein different phases, resulting in compression of the cochlea |
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Term
| osseotympanic bone conduction |
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Definition
| bone conduction resulting from the production of air-conducted sound in the external auditory canal caused by vibration of the bondy walls of the canal |
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Term
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Definition
| production and enhancement of air-conducted sound in a plugged external auditory canal that was originally created through the vibration of the bony walls of the canal |
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