The participants were recruited from elderly subjects in the age range of 60-85 years and audiological assessments (pure tone audiometry, speech audiometry), cognitive function assessments (Simple Mental State Examination MMSE scale, Montreal Cognitive Assessment Scale MoCA scale), non-invasive brain imaging (functional near-infrared spectroscopy fNIRS, EEG/ERP), behavioral assessments (functional near-infrared spectroscopy fNIRS, EEG/ERP, PET/CT, etc.) were collected from the normal control group, the elderly deaf non-hearing group and the elderly deaf hearing group according to the inclusion and exclusion criteria. The project aims to investigate the differences in auditory speech and cognitive function in age-related deafness at the behavioural level, and to investigate the central cortical metabolic mechanisms in age-related deafness at the brain imaging level.
The participants were recruited from elderly subjects in the age range of 60-85 years and audiological assessments, cognitive function assessments, non-invasive brain imaging, behavioral assessments were collected from the normal control group, the elderly deaf non-hearing group and the elderly deaf hearing group according to the inclusion and exclusion criteria. The project aims to investigate the differences in auditory speech and cognitive function in age-related deafness at the behavioural level, and to investigate the central cortical metabolic mechanisms in age-related deafness at the brain imaging level.