Down syndrome is a chromosomal abnormality associated with significant deficits across multiple cognitive domains, including a disproportionate deficit in hippocampally-dependent memory. In other words, individuals with Down syndrome may have a particular difficulty remembering specific details from past events. One way this manifests itself is in overgeneral autobiographical memory, or a tendency to remember the general gist of an event or cluster of events, rather than a single, isolated event. This overgeneral memory makes it difficult for individuals with Down syndrome to access their past, can interfere with attempts to becoming more independent, and increases anxiety and depression. In the current VIRTUAL study, the investigators test whether a new digital memory prosthetic-HippoCamera-can enhance specific autobiographical memory in individuals with Down syndrome. In HippoCamera, users are asked to record and replay events from their daily lives. This replay is curated by a research-based algorithm in HippoCamera that optimizes consolidation of these events over time and has been shown to enhance memory specificity in other populations with memory impairments, particularly those that stem from hippocampal disfunction. It is, therefore, likely that similar enhancements in autobiographical memory specificity will be identified in individuals with Down syndrome, highlighting the benefits of this applications in this population.