Effects of Aging on Behavioral Measures of Listening Effort
Larry Humes
Primary Investigator
Overview
The purpose of this study is to investigate how people recognize speech under a variety of listening conditions, and to investigate relations between scores on cognitive and memory tasks and perception of speech in adverse listening conditions.
Description
For this study, you will identify and/or recall words and phrases presented to you in backgrounf noise.
Approx. 3-4 Sessions lasting up to 2 hours each on the Bloomington Campus
Participants will be compensated for their participation.
Eligibility
You may be eligible for this study if you meet the following criteria:
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Conditions:
Hard of hearing, Healthy
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Age: Between 18 Years - 100 Years
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Gender: All
Inclusion Criteria
Participants will have normal hearing as measured by audiologic evaluation after obtaining consent.
This experiment include two experimental groups: Young normal hearing (YNH) and Older normal hearing (ONH).
Inclusion criteria will be the same for both groups EXCEPT for age;
YNH participants will be between age 18-25 (inclusive) and ONH participants will be age 50 or older.
Participants will be native speakers of American English and will pass a screening for dementia
Exclusion Criteria
Participants will be excluded if a conductive hearing loss is evident, if there is suspected retrocochlear pathology in either ear, or if hearing thresholds are asymmetric by more than 15 dB at two or more frequencies.
Participants will not be invited to participate if their age does not fall within the age ranges listed under inclusion criteria.
Participants will be excluded if scores on the dementia screening (Mini-Mental State Exam) are 25 or lower.
Potential participants will be excluded if they have a history of neurological disorder, or any cognitive, medical, or language-based condition which may limit his/her ability to complete all test procedures, constant tinnitus, or are non-native speakers of English.
Other exlusionary criteria include current use of Cisplatin for cancer treatment or Life-saving Mycin antibiotics.
