Amplification & Aural Rehabilitation Flashcards
7 cards from real ABA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Amplification & Aural Rehabilitation flashcards as text
Which hearing aid feature uses multiple microphones to emphasize sounds arriving from the front while attenuating sounds from the sides and rear?
Answer: Directional microphone processing
Directional microphone processing uses two or more microphones to create a polar pattern that enhances the signal-to-noise ratio for sounds originating in front of the listener.
In aural rehabilitation, the term 'auditory closure' refers to:
Answer: The ability to recognize a complete message despite missing acoustic cues
Auditory closure is the perceptual ability to complete or recognize speech even when portions of the signal are degraded, distorted, or absent.
A patient reports that their hearing aids whistle when they cup their hand near their ear. The MOST likely cause is:
Answer: Acoustic feedback due to re-amplification of the output signal
Acoustic feedback occurs when amplified sound leaks from the receiver back to the microphone and is re-amplified, producing a high-pitched whistle or squeal.
The Hearing Handicap Inventory for the Elderly (HHIE) primarily measures:
Answer: The self-perceived emotional and social effects of hearing loss
The HHIE is a 25-item self-report questionnaire assessing the emotional and social/situational consequences an individual perceives from their hearing impairment.
Which compression parameter determines how quickly a hearing aid's gain increases after a loud input signal drops below the compression threshold?
Answer: Release time
Release time (also called recovery time) is the time required for the hearing aid to return to full gain after the input signal drops below the compression threshold.
A cochlear implant mapping session in which stimulation levels are adjusted based on the patient's behavioral responses is called:
Answer: Psychophysical programming (MAPs)
Psychophysical programming (creating MAPs) involves measuring threshold (T) and comfortable (C or M) levels for each electrode through behavioral responses to set the dynamic range for the implant.
In hearing aid fitting, the 'occlusion effect' most significantly affects which frequency range?
Answer: Low frequencies below 500 Hz
The occlusion effect amplifies bone-conducted low-frequency sound vibrations trapped in the occluded ear canal, making the user's own voice sound hollow or boomy.