The Research
Catch the Ghost is not a hot take. Every claim we make about attention, focus, and the cost of phones is backed by peer-reviewed research from psychology, neuroscience, and behavioral economics. Below are the studies we point to most often, in two parts: what a distracted attention span costs you, and what the app's own mechanics are built out of.
For the neuroscience behind the app itself, see The Science behind Catch the Ghost.
Part one
Gloria Mark's foundational research established that after a single interruption, it takes an average of 23 minutes and 15 seconds to fully return to a task. Two decades of her follow-up work have also documented that average attention on any screen has fallen from 2.5 minutes in 2004 to roughly 47 seconds today.
Read the studyA pre-registered randomized controlled trial of 1,661 Facebook users. Four weeks off Facebook improved subjective wellbeing by 0.09 standard deviations, freed up roughly one hour per day, and led participants to keep using Facebook less long after the experiment ended. The most methodologically rigorous causal study of social media on wellbeing published to date.
Read the studyMeta-analysis of 71 studies and 98,299 participants across TikTok, Instagram Reels, and YouTube Shorts. Heavier short-form video use was associated with meaningfully worse attention (r = −.38) and inhibitory control (r = −.41). These effect sizes are roughly ten times larger than older "screen time" correlations from earlier generations of research.
Read the studyIn a controlled lab experiment with 166 participants, simply receiving a text or call notification, without ever looking at the phone, produced attentional lapses on par with actively using the device. The cost of a modern workday isn't checking your phone; it's owning one that can buzz.
Read the studyThe first peer-reviewed paper to operationalize doomscrolling as a measurable behavior. Across two samples totaling over 900 people, doomscrolling tracked with neuroticism, negativity bias, problematic social media use, and fear of missing out, and inversely with conscientiousness, self-control, and positive affect.
Read the studyPart two
Every mechanic in Catch the Ghost traces to a finding, and most of these papers are older and better replicated than the product they now justify. Where a study argues against something we might otherwise have shipped, we followed the study. The science page walks through which mechanic each one shapes.
The paper that named the effect: the mere presence of other people reliably changes how hard you work at a task. Zajonc reconciled decades of contradictory findings into one rule, that an audience amplifies whatever response is already dominant. It is the oldest formal argument for why working next to someone else is not just pleasant but measurably different, and it sits underneath every co-working space, every study hall, and our Focus Together rooms.
Read the studyFour experiments on the Köhler motivation gain: paired with a partner on a shared task, the weaker performer works substantially longer than they do alone, and the effect is strongest when the outcome depends on both of them. This is the empirical case for the specific shape of our group bonus, which requires two people to finish before it pays anyone.
Read the studyA 35-year synthesis across roughly 400 studies. Specific, moderately difficult goals produce higher performance than vague encouragement to do your best, and the relationship between goal difficulty and effort is close to linear until the goal exceeds ability. This is why the app asks you to name a number of sessions per day instead of telling you to focus more.
Read the studyA meta-analysis of 94 independent tests covering more than 8,000 participants. Deciding in advance when and where you will act ("if it is 9am, then I focus") produced a medium-to-large effect on goal attainment over and above merely holding the goal. Intentions attached to a specific moment behave very differently from intentions in general.
Read the studyThe information-gap account of curiosity: curiosity is the felt deprivation that arrives when you become aware of a gap between what you know and what you want to know, and it grows as the gap narrows. A half-finished life story is a much sharper hook than an unopened one, which is the entire design argument for ordering apparitions into chapters.
Read the studyAcross four experiments, readers who were absorbed into a narrative reported stronger beliefs consistent with it and evaluated its protagonists more favorably, regardless of whether they were told the story was fact or fiction. Narrative is not a decorative wrapper on information. It changes what the information does to you.
Read the studyNinety-six people, one new daily behavior each, tracked for 12 weeks. Automaticity rose along an asymptotic curve, taking a median of 66 days to plateau and varying from 18 days to well over 200 depending on the person and the behavior. Critically, missing a single day did not measurably harm the process. This is the finding behind our position that a broken streak should be repairable rather than final.
Read the studyA randomized field experiment on a savings account that voluntarily restricted withdrawals until the holder hit a goal they set themselves. Those offered it saved substantially more than the control group, and the effect persisted after the experiment. Self-imposed, freely chosen constraints work, which is the case for optional coin stakes rather than mandatory penalties.
Read the studyContribute
If there is a study on attention, focus, or the effects of digital media that belongs on this page, please send it our way. We read everything.
CATCH THE GHOST®
