Pixel Memories: Do Lifelog Summaries Fail to Enhance Memory but Offer Privacy-Aware Memory Assessments?

Research output: Contribution to book/Conference proceedings/Anthology/ReportConference contributionContributedpeer-review

Contributors

  • Passant Elagroudy - , University of Kaiserslautern-Landau (Author)
  • Rufat Rzayev - , Chair of Multimedia Technology (Author)
  • Tonja-Katrin Machulla - , Chemnitz University of Technology (Author)
  • Huy Viet Le - , University of Stuttgart (Author)
  • Tilman Dingler - , Delft University of Technology (Author)
  • Lars Lischke - , Vrije Universiteit Amsterdam (VU) (Author)
  • Sarah Clinch - , University of Manchester (Author)
  • Geoffrey Ward - , University of Essex (Author)
  • Albrecht Schmidt - , Hospital of the Ludwig-Maximilians-University (LMU) Munich (Author)

Abstract

We explore the metaphorical "daily memory pill"concept - a brief pictorial lifelog recap aimed at reviving and preserving memories. Leveraging psychological strategies, we explore the potential of such summaries to boost autobiographical memory. We developed an automated lifelogging memory prosthesis and a research protocol (Automated Memory Validation "AMV") for conducting privacy-aware, in-situ evaluations. We conducted a real-world lifelogging experiment for a month (n=11). We also designed a browser "Pixel Memories"for browsing one-week worth of lifelogs. The results suggest that daily timelapse summaries, while not yielding significant memory augmentation effects, also do not lead to memory degradation. Participants' confidence in recalled content remains unaltered, but the study highlights the challenge of users' overestimation of memory accuracy. Our core contributions, the AMV protocol and "Pixel Memories"browser, advance our understanding of memory augmentations and offer a privacy-preserving method for evaluating future ubicomp systems.

Details

Original languageEnglish
Title of host publicationProceedings of the 2025 CHI Conference on Human Factors in Computing Systems.CHI '25, Yokohama, Japan
ISBN (electronic)979-8-4007-1394-1
Publication statusPublished - 26 Apr 2025
Peer-reviewedYes

External IDs

Scopus 105005709101
ORCID /0000-0002-0466-2445/work/203070879

Keywords

Keywords

  • case study, lifelogging, memory research, privacy, recall