The purpose of the study is to assess training of visual speech (lipreading) and audiovisual (lipreading plus auditory) speech as a rehabilitation strategy for hearing loss in adults.
It is hypothesized that training that improves lipreading in older adults can carry over to untrained lipreading materials and to audiovisual speech recognition in noise. Participants receive pre- and post-training tests of speech recognition with visual-only, auditory-only, and audiovisual spoken sentences and isolated words. During pre- and post-training tests, they carry out forced choice identification of lipread consonants. Participants who are assigned to a training arm train on lipreading isolated sentences (Aim 1) or on learning via lipreading sets of isolated nonsense words (Aim 2). Depending on the outcomes of Aims 1 and 2, in Aim 3, new participants receive audiovisual training with conditions from Aims 1 and 2.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
138
Training for each training arm takes place over 10 sessions carried out at home. on the participant's own computer without experimenter direct supervision. Pre- and post-training tests are carried out under experimenter supervision.
George Washington University
Washington, Virginia, United States
Change in words-correct scores across pre- and post-training sentence lipreading tests.
Change in words-correct scores across pre- and post-training visual-only sentence tests with open-set responses.
Time frame: up to 8 weeks
Change in phonemes-correct scores across pre- and post-training sentence lipreading tests.
Change in phonemes-correct scores across pre- and post-training visual-only sentence tests with open-set responses.
Time frame: up to 8 weeks
Change in consonant-identification scores across pre- and post-training word lipreading tests.
Change in consonants-correct scores across pre- and post-training for visual-only tests using isolated nonsense words and closed-set responses.
Time frame: up to 8 weeks
Change in word-correct scores across pre- and post-training word lipreading tests.
Change in words-correct scores across pre- and post-training visual-only isolated real word tests with open-set response.
Time frame: up to 8 weeks
Change in phonemes-correct scores across pre- and post-training word lipreading tests.
Change in phonemes-correct scores across pre- and post-training visual-only isolated real word tests with open-set response.
Time frame: up to 8 weeks
Change in words-correct scores across pre- and post-training audiovisual sentence tests.
Change in words-correct scores across pre- and post-training audiovisual-in-noise sentence identification tests with open-set response.
Time frame: up to 8 weeks
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Change in phonemes-correct scores across pre- and post-training audiovisual sentence tests.
Change in phonemes-correct scores across pre- and post-training audiovisual-in-noise sentence identification tests with open-set response.
Time frame: up to 8 weeks
Change in word-correct scores across pre- and post-training for audiovisual-in-noise word tests.
Change in word-correct scores across pre- and post-training audiovisual-in-noise isolated real word tests with open-set response.
Time frame: up to 8 weeks
Change in phoneme-recognition scores across pre- and post-training audiovisual-in-noise word tests.
Change in phoneme-recognition scores across pre- and post-training audiovisual-in-noise isolated real word tests with open-set response.
Time frame: up to 8 weeks