title: Neurocognitive functioning of a child with partial trisomy 6 and monosomy 21.
abstract: This case study describes the neurocognitive presentation of a child with identified genetic abnormalities of trisomy 6 and monosomy 21 who was evaluated as part of a standard medical protocol for cochlear implantation following diagnosis of profound sensorineural hearing loss. This child received neurocognitive testing prior to cochlear implantation and approximately 12 months post-activation of his cochlear implant. While he has not fully developed oral language, his presentation suggested improvement in overall skills since the activation of the cochlear implant; however, less than would be expected for a typically developing child.
authors.affiliation: Indiana University-Purdue University, Indianapolis, IN, USA.
authors.forename: Jennifer M
authors.initials: JM
authors.lastname: Katzenstein
authors.forename: John S
authors.initials: JS
authors.lastname: Oghalai
authors.forename: Ross
authors.initials: R
authors.lastname: Tonini
authors.forename: Dian
authors.initials: D
authors.lastname: Baker
authors.forename: Jody
authors.initials: J
authors.lastname: Haymond
authors.forename: Susan E
authors.initials: SE
authors.lastname: Caudle
mesh_terms: D002657:Child Development / Q000502:physiology; D002675:Child, Preschool; D002891:Chromosomes, Human, Pair 21; D002896:Chromosomes, Human, Pair 6; D003054:Cochlear Implants; D003071:Cognition / Q000502:physiology; D003072:Cognition Disorders / Q000503:physiopathology*; D006801:Humans; D008297:Male; D009006:Monosomy / Q000503:physiopathology*; D009483:Neuropsychological Tests; D012720:Severity of Illness Index; D014314:Trisomy / Q000503:physiopathology*