human 262 Humans 194 male 190 Article 188 female 188 adult 145 controlled study 111 Female 103 Male 98 hearing impairment 80 middle aged 79 clinical article 73 major clinical study 73 Adult 70 aged 68 child 61 Middle Aged 52 adolescent 52 intellectual impairment 51 cognitive defect 47 Aged 46 pathophysiology 46 mild cognitive impairment 45 Child 43 psychology 39 nuclear magnetic resonance imaging 36 Intellectual Disability 34 cognition 34 Adolescent 32 Hearing Loss 31