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aud final
audiology
| Question | Answer |
|---|---|
| Pure tone | a tone of olny one frequency, no harmonics |
| audiometer | a device for determining the thresholds of hearing |
| air conduction | the courseof sounds that are conducted to the inner ear by way of the outer ear and middle ear |
| bone conduction | the course of sounds that are conducted to the inner ear by way of the bones of the skull |
| transduce | to convert one form of power to another headphones, insert headphones, bone condution oscillator, loud speakers |
| attenuator | the reduction of energy (sound) volume control |
| interrupter | on/off switch for tone |
| false positive | signally that sound is heard when no tone is presented |
| false negative | not signaling when tone is presented and heard. |
| threshold | the level at which a stimulusis barely perceptible. 50 percent of the times presented. |
| Pure tone average | the average of the hearing levels at frequencies 500,1000,2000 |
| high pure tone average | the average of the hearing levels 500, 1000, 2000, and 4000 |
| masking | the process by which the threshold of a sound is elevated by the simultaneous introduction of another sound. |
| air-bone gap (ABG) | The abount by which the air conduction threshold of a patient exceeds the bone -conduction threshold at any frequency in the same ear. |
| impedance | the opposition to sound-wave transmission. It comprises friction resistance, mass, and stiffness and is influenced by frequency. |
| spondee | a two-syllable word pronounced with equal stress on both syllables. |
| stiffness | the flexibility or pliancy of a mass. The inverse of compliance |
| Speech reception threshold (SRT) | The losest intensity at which at least 50 percent of a list of spondees can be repeated correctly at least 50% of the time. |
| monosyllabic word | one syllable word (word recgnition testing) |
| Phonetically balanced (PB) word lists | lists of monosyllabic words used for determining word recognition scores. Theoretically, each list contains the same distribution of phonemes that occours in connected English discourse. |
| minimum response level (MRL) | The lowest level of response offered by a child to an acoustic stimulus. Could be barely audible or well above threshold. |
| auropalpebral reflex (APR) | contraction of the ring muscles of the eyes in repoonse to a sudden, unexpected sound. |
| Behavioral response audiometry (BOA) | 3 to 6 months observe basic responses to speech or tones or noises at minimal response levels consistent with developmental age. |
| Visual Reinforcement Audiometry (VRA) | 6 to 18 months. head turn response towards a lighted toy in response to presentaiton of a sound |
| play audiometry | 2 years and older |
| APGAR test | The method for evaluating the status of infants immediately and shortly after birth. Observations are made of the child's respiration, heart rate, muscle tone, color, and reflex irritability. |
| High Risk register | a set of criteria designed to help identify neonates whose probability of hearing loss is greater than normal. Can miss up to 50% |
| Moro reflex | A sudden embracing movement of the arms and drawing up of the legs of infants and small children in response to sudden loud sounds |
| Sound field testing | Without headphones. |
Created by:
dbrinker