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Improvement of Cognitive
Function in the Elderly with
the Use of Amplification
Ashton Crain with Mentor Teresa Garcia, M.S., CCA
Department of Communication Disorders
Background of Hearing Loss
• Anatomy
• Type of Hearing Loss
• Causes
• Audiogram
• Degree of Hearing Loss
• Prevelance
Anatomy of Hearing
Type of Hearing Loss
• Conductive
• Outer Ear
• Middle Ear
Type of Hearing Loss
• Conductive
• Outer Ear
• Middle Ear
• Sensorineural
• Inner Ear
Type of Hearing Loss
• Conductive
• Outer Ear
• Middle Ear
• Sensorineural
• Inner Ear
• Mixed
• Combination of conductive and sensorineural hearing loss
Hearing Evaluation
•
•
•
•
Medical History
Pure-tone Testing
Speech Recognition Testing
Speech Discrimination Testing
Measuring Hearing Loss
Measuring Hearing Loss
Prevalence of Hearing Loss
Prevalence of hearing loss in the United States
50%
45.12%
45%
40%
35%
31.13%
30%
Percentage 25%
20%
18.94%
15%
10%
6.73%
5%
0%
18-44
45-64
65-74
Age
75+
National Center for
Heath Statistics, 2012
Prevalence of Hearing Loss
Brain Hearing
Brain Hearing
Speech Perception
Cognition and Hearing Loss
• 1999-2011, Frank R. Lin
• Audiometric Evaluation & DSST component of the Wechsler Adult
Intelligence Test
Cognition and Hearing Loss
• 2014, University of Hong Kong
•
•
•
•
Assessed:
Pure-tone audiometry
Hearing in Noise Test
Mini Mental State Evaluation (MMSE)
•
•
•
•
•
•
•
•
Orientation to time
Orientation to place,
Registration
Attention calculations
Recall,
Language
Repetition
Complex commands
Auditory Deprivation
Treatment
• Aural Rehabilitation
• Amplification
• Hearing aids
• Bone anchored hearing aid (BAHA)
• Cochlear Implant
• Communication Therapy
Cognitive Improvements
• 2011, Kalluri & Humes
• Short-Term Interactions of Hearing Technology and Cognition
• Noise recall, neurological fatigue, auditory function
• Long-Term Impact of Hearing Technology and Cognition
• Diminishing sensory input
Cognitive Improvements
• 2010, Eulji University School of Medicine
• Speech related cognition
• Statistically significant
• Speech discrimination in background noise
• Not statistically significant
Cognitive Improvements
• 2005, International Journal of Audiology
• No statistical significance
My Future Studies
• “Window of opportunity”
• Degree of hearing loss
• Age impact on cognitive improvement with hearing aids
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