Scientific Evidence on the Effectiveness of the CAST program

Moderate auditory training can improve speech performance of adult cochlear implant patients:

Project partially supported by National Institute of Health.
10 adult cochlear implant patients participated in the study.
Training on vowel and consonant recognition but NO training in sentence recogintion.
Mean improvement in vowel recognition: 15.8 percetange.
Mean improvement in consonant recogition: 13.5 percetange.
Mean improvement in sentence recognition: 27.9 percetange.

Melodic Sequence Identification training in adult cochlear implant patients:

Project partially supported by national Institute of Health.
6 adult cochlear implant patients participated in the study.
Training on melodic sequence identification but NO training on familiar melody identification.
Mean improvement in melodic sequence identification: 27.3 percentage
Mean improvement in familiar melody identification: 20.8 percentage

Effects of computer-assisted speech training on Mandarin-speaking hearing impaired cihldren:

10 hearing impaired cihldren ( 7 cochlear implant and 3 hearing aid users) participated in the study.
Training on Chinese vowel, consonant, and tone recognition
Mean improvement in Chinese vowel recognition: 21.7 percetange.
Mean improvement in Chinese consonant recogition: 18.5 percetange.
Mean improvement in Chinese tone recognition: 15.1 percetange.