Biomaterial Database

Stapedial reflexes in normal versus recruiting ears. 1977

J H Lovrinic

The latency and magnitude of the stapedial reflex was examined in a group of normal-hearing Ss (N: 15) and in 15 Ss with unilateral sensorineural impairment exhibiting abnormal loudness growth in the impaired ear. Reflexes were determined at successive 2-db steps from threshold to 16 db above using a 2-kc/s stimulus tone. Latency and magnitude measurements were not statistically different between groups nor between ears within the pathological group. These results substantiate dependence of the stapedial reflex on loudness. Furthermore, there appears to be a dependence of the reflex magnitude on age, in that the magnitude tends to be less in older Ss.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D009132	Muscles	Contractile tissue that produces movement in animals.	Muscle Tissue,Muscle,Muscle Tissues,Tissue, Muscle,Tissues, Muscle
D011930	Reaction Time	The time from the onset of a stimulus until a response is observed.	Response Latency,Response Speed,Response Time,Latency, Response,Reaction Times,Response Latencies,Response Times,Speed, Response,Speeds, Response
D012001	Hyperacusis	An abnormally disproportionate increase in the sensation of loudness in response to auditory stimuli of normal volume. COCHLEAR DISEASES; VESTIBULOCOCHLEAR NERVE DISEASES; FACIAL NERVE DISEASES; STAPES SURGERY; and other disorders may be associated with this condition.	Auditory Hyperesthesia,Loudness Recruitment,Recruitment, Loudness,Hyperacusia,Loudness Perception Disturbances,Phonophobia,Auditory Hyperesthesias,Disturbance, Loudness Perception,Disturbances, Loudness Perception,Hyperacuses,Hyperacusias,Hyperesthesia, Auditory,Hyperesthesias, Auditory,Loudness Perception Disturbance,Loudness Recruitments,Perception Disturbance, Loudness,Perception Disturbances, Loudness,Phonophobias
D012018	Reflex	An involuntary movement or exercise of function in a part, excited in response to a stimulus applied to the periphery and transmitted to the brain or spinal cord.
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328	Adult	A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available.	Adults
D000367	Age Factors	Age as a constituent element or influence contributing to the production of a result. It may be applicable to the cause or the effect of a circumstance. It is used with human or animal concepts but should be differentiated from AGING, a physiological process, and TIME FACTORS which refers only to the passage of time.	Age Reporting,Age Factor,Factor, Age,Factors, Age
D013198	Stapedius	A tiny muscle that arises from the posterior wall of the TYMPANIC CAVITY of MIDDLE EAR with its tendon inserted onto the neck of the STAPES. Stapedius pulls the stapes posteriorly and controls its movement.