Lifelog
personal record of one's daily life
A lifelog is a personal record of one's daily life in a varying amount of detail, for a variety of purposes. The record contains a comprehensive dataset of a human's activities. The data could be used to increase knowledge about how people live their lives. In recent years, some lifelog data has been automatically captured by wearable technology or mobile devices. People who keep lifelogs about themselves are known as lifeloggers (or sometimes lifebloggers or lifegloggers).
The sub-field of computer vision that processes and analyses visual data captured by a wearable camera is called "egocentric vision" or egography.
Examples
A known lifelogger was Robert Shields, who manually recorded 25 years of his life from 1972 to 1997, at 5-minute intervals. This record resulted in a 37-million word diary, thought to be the longest ever written.
Steve Mann was the first person to capture continuous physiological data along with a live first-person video from a wearable camera. Starting in 1994, Mann continuously transmitted his life — 24 hours a day, 7 days a week.
This brief starts where responsible research should: with the source description of “Lifelog” as personal record of one's daily life. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the general reference register because the source frames it as personal record of one's daily life. Its deeper value depends on whether names, dates, institutions and citations support that framing.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Sep 15, 2026. The linked authority identifier is Q763835. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1972, 1997 and 1994.
Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Lifelog”, its source revision and the description used here.
- Expand the search: follow Lifelog primary sources, Lifelog archive and Lifelog research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Lifelog”?
- Which cited source is closest to the event, object or claim?
- What terminology or title could unlock a more precise catalogue search?
Search terms from this dossier
This entry incorporates text from “Lifelog” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.