What Zeigarnik observed
In 1927, the psychologist Bluma Zeigarnik, a student of Kurt Lewin, published experiments in which participants remembered interrupted tasks better than completed ones. The founding story, often told, is that of the waiters in a Berlin café who remembered pending orders perfectly but forgot those already paid.
A necessary clarification
The "Zeigarnik effect" in the strict sense (better memory for interrupted tasks) is now disputed. A 2025 meta-analysis (Ghibellini & Meier) concludes that interrupted tasks are not recalled better than completed ones, whereas the tendency to resume an interrupted task (the Ovsiankina effect) is solid: about two out of three interrupted tasks are resumed. In other words, we cannot claim that "the brain keeps open tasks in working memory" as a general rule.
What remains solid: unfinished goals occupy the mind
Masicampo and Baumeister (2011) showed that unfulfilled goals generate intrusive thoughts and impair performance on unrelated tasks. Above all, they showed that you do not need to finish the task to regain focus: it is enough to make a specific plan (when, where, how) to carry it out. That is the part to keep.
Putting it into practice: the mental offload
- Capture every task or idea in a trusted system rather than in your head (the principle behind David Allen's GTD method).
- Define the next concrete action, with a date.
- Review the list regularly to keep trusting the system.
In FluidOps
The backlog acts as external memory: every idea becomes a Kanban card, with a priority and an owner. The AI assistant can help break a big goal into concrete tasks. And the big picture is on display in the Kanban demo, no sign-up needed. To go further on splitting work: Why Breaking Down Tasks Boosts Productivity.
Sources
- Zeigarnik, B. (1927). Über das Behalten von erledigten und unerledigten Handlungen. Psychologische Forschung, 9, 1-85. [traduction anglaise]
- Masicampo, E. J., & Baumeister, R. F. (2011). Consider it done! Plan making can eliminate the cognitive effects of unfulfilled goals. Journal of Personality and Social Psychology, 101(4), 667-683. doi:10.1037/a0024192
- Ghibellini, R., & Meier, B. (2025). Interruption, recall and resumption: a meta-analysis of the Zeigarnik and Ovsiankina effects. Humanities and Social Sciences Communications, 12, 962. nature.com