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Supplementing Hearing Aids With Computerized Auditory Training (LACE)

This study has been completed.
Information provided by (Responsible Party):
VA Office of Research and Development Identifier:
First received: July 30, 2008
Last updated: January 12, 2015
Last verified: January 2015
The study is designed to examine the effectiveness of a computer-based auditory training program to improve the benefits received by individuals who wear hearing aids. The study will involve 3 groups - a computer-based training group, an active listening group which will involve listening to books on CD, and a placebo group that receives no additional treatment.

Condition Intervention
Hearing Loss
Behavioral: LACE-computer
Behavioral: PLACEBO-Directed listening
Behavioral: CONTROL
Behavioral: Lace-DVD

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single Blind (Participant)
Primary Purpose: Treatment
Official Title: Supplementing Hearing Aids With Computerized Auditory Training

Resource links provided by NLM:

Further study details as provided by VA Office of Research and Development:

Primary Outcome Measures:
  • Words-in-Noise Test [ Time Frame: Baseline and at 6 month follow up ]
    Monosyllabic words (NU-6 female version) with a carrier phrase were presented auditory only in a multitalker babble.The participant is asked to repeat the last word of each phrase. The total number of correct words is input into the Spearman-Karber equation to derive a 50% point. This is the signal-to-noise ratio in dB that an individual requires to get 50% of the words correct. This test was completed at baseline and follow up visits.

Secondary Outcome Measures:
  • Abbreviated Profile of Hearing Aid Benefit [ Time Frame: This outcome measure will assess changes from aided baseline to aided assessments made immediately and at six-months post treatment. ]
  • Hearing Handicap Inventory for the Elderly [ Time Frame: This outcome measure will assess changes from aided baseline to aided assessments made immediately and at six-months post treatment. ]

Enrollment: 279
Study Start Date: January 2009
Study Completion Date: December 2011
Primary Completion Date: April 2011 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: LACE-COMPUTER
Participants will complete a computer-based auditory training program (i.e., LACE)
Behavioral: LACE-computer
Computerized Auditory Training
Participants will complete a directed listening to books on CD treatment
Behavioral: PLACEBO-Directed listening
Subjects will be asked to listen to books on tape for 20 minutes a day and answer questions as they go along
Active Comparator: CONTROL
Participants will be provided with hearing aids
Behavioral: CONTROL
No specialized treatment will be provided in addition to standard of care audiology treatment provided with the provision of hearing aids
Experimental: LACE-DVD
Participants will complete the LACE training, however, not in an interactive computer mode but through a static DVD mode
Behavioral: Lace-DVD
DVD based Auditory Training

Detailed Description:
This proposed study is a multi-site, single-masked (blinded), randomized controlled, parallel group clinical trial to assess the effectiveness of an at home PC-based auditory training as a supplement to standard-of-care hearing-aid intervention in veterans treated for hearing loss, with or without previous hearing-aid experience. The participants will be assigned randomly to one of three groups, with hearing-aid use stratified within the groups: (1) Group 1, HA+AT, in which the participants will receive standard-of-care hearing-aid intervention (HA) and complete the four-week LACE auditory training program (AT); (2) Group 2, HA, with the participants receiving only standard-of-care hearing-aid intervention (HA); and (3) Group 3, HA+DL, in which the participants will receive standard-of-care hearing-aid intervention (HA) and complete four-weeks of placebo auditory training, consisting of directed listening (DL) to books-on-tape. The participants in each group will attend four test sessions. During Session 1 the informed consent process will be completed, baseline assessments will be made to ensure that the participants meet the study inclusion criteria (page 52), testing of predictor variables (page 57-58) will be completed, and all hearing aids will be assessed for correct functionality (page 53). The participants then will be assigned randomly to a study group. Session 2 will occur four weeks after Session 1. During Session 2, baseline performance on the outcome measures will be assessed (page 54-57), as will performance on the predictor variables. Following testing, the participants in Groups 1 and 3 will receive training in the use of the AT or DL programs. Session 3 will occur at the end of the 4-week experimental training period. During Session 3 all participants will be retested on the outcome measures to assess short-term intervention outcomes. During Session 4, which will occur at seven-months post-study enrollment (i.e., six-months post training completion for Groups 1 and 3), all participants will be retested on all outcome measures to examine the long-term outcomes. In Sessions 2-4, the stability of hearing-aid function will be assessed through electroacoustic measures.

Ages Eligible for Study:   55 Years to 85 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  1. adult onset hearing loss,
  2. English as the first language,
  3. bilateral, symmetric, sensorineural hearing loss,
  4. average audiometric thresholds for 500, 1000, and 2000 Hz less than 50-dB HL in either ear,
  5. aided speech recognition in quiet of 40% binaurally,
  6. appropriate cognitive skills assessed using the Mini Mental State Exam (Folstein et al., 1975) with age/education norms (Crum et al., 1993),
  7. adequate vision to participate in the study as determined with the Smith-Kettlewell Institute Low Luminance (SKILL) Card,
  8. eligible for VA-issued hearing aids.

Exclusion Criteria:

known neurological, psychiatric disorders, or co-morbid diseases that would prevent completion of the study as determined by chart review,

  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00727337

United States, Florida
VA Medical Center, Bay Pines
Bay Pines, Florida, United States, 33708
Sponsors and Collaborators
VA Office of Research and Development
Principal Investigator: Theresa Chisolm, PhD University of South Florida
  More Information

Responsible Party: VA Office of Research and Development Identifier: NCT00727337     History of Changes
Other Study ID Numbers: C6303-R
Study First Received: July 30, 2008
Results First Received: October 22, 2014
Last Updated: January 12, 2015

Keywords provided by VA Office of Research and Development:
auditory perception
rehabilitation of hearing impaired

Additional relevant MeSH terms:
Hearing Loss
Hearing Disorders
Ear Diseases
Otorhinolaryngologic Diseases
Sensation Disorders
Neurologic Manifestations
Nervous System Diseases
Signs and Symptoms processed this record on April 28, 2017