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Study Lab
Today's technique
Retrieval practice
Close the notes and write it down
Rereading makes a page look familiar, and familiarity is easy to mistake for knowing. A major review of ten popular study techniques rated practice testing high in usefulness and rereading and highlighting low.
Try it
Pick one topic you studied recently.
Close the notes. On a blank page, write everything you remember about it.
Open the notes and mark what you missed.
Restudy only the parts you missed.
Retrieval practice needs something to retrieve, so read or listen first. Most of the studies are laboratory experiments with university students.
Source: Why Testing Beats Rereading on neuroviaone.com. Dunlosky et al., 2013, Psychological Science in the Public Interest.
The same amount of study, spread over several sessions, gives better long-term memory than the same amount packed into one block. Cramming works for a day or two, which is why it feels convincing.
Try it
Day 0: learn it, then close the book and write what you remember.
Day 1 or 2: quiz yourself and check what you missed.
About a week later: quiz yourself again.
A few weeks later: one more round.
There is no magic number: the best gap depends on how long you need to remember. Recall Lab uses today, 1 day, 3 days and 1 week as a simple version of this pattern.
Newly learned information is fragile. During sleep the brain appears to replay recent experiences and stabilize the important connections, and people who sleep after learning generally remember more than people who stay awake for the same period.
Try it
Study the hard material earlier, not at the last minute.
Protect your sleep afterwards. An all-nighter gives up the process that makes the studying stick.
Expert panels recommend that adults regularly sleep seven or more hours. Treat that as a floor to test, not a target to obsess over.
General information, not medical advice. If you regularly struggle to sleep, talk to a doctor.
Source: What Sleep Does for Your Brain on neuroviaone.com. Diekelmann and Born, 2010, Nature Reviews Neuroscience; Watson et al., 2015, Sleep.
Retrieval practice
Commit before you flip
In a classic experiment, students who restudied a passage did better after five minutes. After two days and after a week, the students who had tested themselves remembered much more, even though restudying had left the others feeling more confident.
Try it
Take a flashcard or a question.
Say or write your answer before you look.
Check it. Put the ones you missed back in the pile sooner.
A flashcard only works if you commit to an answer first.
A habit is a learned link between a context and a response, so a reliable cue matters more than motivation. In a University College London study of 96 volunteers, the median time to reach a plateau of automatic behavior was 66 days, with a range of 18 to 254.
Try it
Pick one small study action, such as opening your notes.
Anchor it to something you already do: "After I pour my morning coffee."
Make it small enough to repeat. Two minutes of study is a habit you can repeat.
Plan for the missed day. One miss is not the end.
It is one study, with volunteers and self-reported ratings, so treat the numbers as a guide.
Source: How Habits Actually Form on neuroviaone.com. Lally et al., 2010, European Journal of Social Psychology; Wood and Runger, 2016, Annual Review of Psychology.
A 2011 study in Science compared retrieval practice with building a concept map while studying. Retrieval practice produced more learning, including on questions that required inferences. The authors concluded that the benefit comes from retrieval itself.
Try it
Take the headings of a chapter or of your notes.
Turn each one into a question.
Answer aloud, as if explaining to a friend, before you look.
Check, and note what you got wrong.
Most of the studies are laboratory experiments with university students, so results may differ for your subject or age group.
A large review found that if-then plans have a medium-to-large effect on goal achievement. A plan like this turns a vague wish into a specific trigger.
Try it
Write it as: "If it is [time] and I am [place], then I [first small action]."
For example: "If it is 7 pm and I am home, then I open my notes."
Remove friction: put the book where you will see it.
A habit is built on a cue, not on motivation, and it takes longer than most people expect.
Source: How Habits Actually Form on neuroviaone.com. Gollwitzer and Sheeran, 2006, Advances in Experimental Social Psychology.
Spaced practice
Swap one rereading session
A review of ten popular study techniques rated practice testing and distributed practice as the two with the strongest evidence across ages and subjects, and rated highlighting and rereading as the weakest.
Try it
Look at today's plan and find a session where you only reread or highlight.
Replace it with closed-notes questions on the same material.
Notice that it feels harder. The effort is part of what makes it work.
Spacing is not a substitute for understanding. It makes things you understand stick, so fix confusion first.
Source: Why Spacing Beats Cramming on neuroviaone.com. Dunlosky et al., 2013, Psychological Science in the Public Interest.
Answering a question from memory is retrieval practice with the right shape. In the review of ten popular study techniques, practice testing was rated high in usefulness.
Try it
Find past exam questions or a practice set.
Answer from memory, not from the answer key.
Check afterwards and restudy only what you got wrong.
Retrieval practice needs something to retrieve, so read or listen first.
Source: Why Testing Beats Rereading on neuroviaone.com. Dunlosky et al., 2013, Psychological Science in the Public Interest.
A language model sees only your words, so a vague request gets an average answer. In research, models did better when the prompt held a few worked examples, and they used information best when it sat at the start or end of a long input.
Try it
Write the goal and the audience.
Paste the material it should work from.
Show a sample of the output you would be happy with.
Give the format and limits. Put your key instruction first or last.
Check names, numbers and quotations before you use the answer.
A better prompt does not make a wrong answer true. Match your checking to the stakes.
Source: How to Ask AI Better Questions on neuroviaone.com. Brown et al., 2020, NeurIPS; Liu et al., 2024, Transactions of the ACL.
Caffeine and sleep
Run a one-week caffeine test
Caffeine does not add energy. It sits in adenosine receptors and blocks a tiredness signal. In a small laboratory study of twelve healthy adults, 400 mg of caffeine six hours before bed cut measured sleep by more than an hour, and the volunteers did not report noticing it.
Try it
For one week, move your last caffeinated drink earlier in the day.
Count every source: tea, cola, energy drinks, chocolate.
Notice how you sleep. It is one person's experiment, which is why it is useful.
That dose is large and the group was small, so do not read it as a rule for your own cup. General information, not medical advice.
Source: How Caffeine Works on neuroviaone.com. Drake et al., 2013, Journal of Clinical Sleep Medicine; Fredholm et al., 1999, Pharmacological Reviews.
Say or write your answer before you flip the card. If you miss one, it comes back sooner. Days count from the day you started the card. Why spacing works
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Say or write your answer first. Then check.
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Field Notes · 15 articles
Read the evidence
Plain-English science, with sources. The list works offline. Articles open on neuroviaone.com and need a connection unless you have opened them before.
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