Inclusion Criteria:  Be 7 years of age or older and pre-lingually implanted with a cochlear implant (before the age of 2 years), have aided residual hearing, or have normal hearing. Be ages 18 or older and post-lingually implanted or have normal hearing. Be ages 18-35 and pre-lingually implanted.  Exclusion Criteria:  Any child implanted post-lingually