Curiosity is dopamine that helps you learn and remember

The Short Version

Curiosity is more than a pleasant mood. In the lab it shows up as activity in the brain's dopamine-related reward areas, and that state makes you better at remembering things, even things that have nothing to do with what you were curious about [1]. Memory scientist Charan Ranganath describes a trivia experiment in which people who were more curious about a question showed more midbrain and nucleus accumbens activity and later remembered unrelated faces better, and he ties this to dopamine's role in plasticity [1]. Cognitive scientist Maya Shankar lost her career as a violinist at 15 and rebuilt her life by asking a smaller question than do I love this as much?: am I curious enough to want to learn more? [2]. Andrew Huberman explains how separate dopamine pathways drive the two halves of creative thinking, and how a state of deep rest raises dopamine in the pathway for generating ideas [3]. Put together, the pattern is simple: following curiosity keeps the brain's learning machinery switched on, whether the goal is remembering, starting over or making something new [1][2][3].

Table of contents

What They Said

Charan Ranganath: curiosity switches on the brain's learning machinery

Ranganath, a UC Davis professor of psychology and neuroscience and author of Why We Remember, starts from a reframe that explains why curiosity matters so much to memory: "I actually don't think memory is about the past. I think memory is about the present and the future" [1]. On his account, memory lets us pull what we need from the past to read what is happening now and predict what comes next, and it lets us detect surprises and grab the most informative information [1]. Seen that way, curiosity (a pull toward information we don't have yet) is exactly the state a prediction-making brain should reward.

The trivia study. Ranganath credits his former postdoc Matthias Gruber with a study he admits he first dismissed as a dumb topic [1]. People lying in an fMRI scanner saw trivia questions, rated how curious they were about each answer, then waited several seconds to see it [1]. The more curious they were, the more activity appeared in dopamine-related areas of the midbrain and in the nucleus accumbens, and that activity was driven by the question itself rather than by the answer [1]. In other words, the brain's response came from wanting to know, not from being rewarded with the answer.

The clever part: unrelated faces. During the wait, participants were shown an unrelated face. When they were in a curious state, they later remembered those unrelated faces better [1]. That is the heart of the point: curiosity doesn't only help you remember the thing you're curious about. It seems to open a window in which nearby information also sticks.

Why he thinks dopamine is involved, and his caveats. Ranganath is careful here. He notes that fMRI doesn't measure dopamine directly, and that assigning one function to one chemical is risky [1]. Still, he believes dopamine promotes plasticity, and he points to a theory called synaptic tagging that explains how a burst of dopamine can strengthen memories formed close to it in time [1]. So his practical answer to how do you boost the dopamine system? is to engage curiosity [1]. He adds supporting work from his Davis colleague Brian Wiltgen, who found that dopamine activity from the locus coeruleus helps animals link a tone to a shock that came many seconds later, another case of a dopamine signal binding together events that are separated in time [1].

What dopamine is for. Ranganath sees dopamine as energizing movement toward rewards and toward information [1]. He cites Kent Berridge's work on wanting versus liking: animals depleted of dopamine will still eat a reward placed in front of them but won't work to get it [1]. Curiosity fits the "wanting" side. It is the drive to go get the answer.

It works at every age. Ranganath notes that the curiosity effect on memory holds just as well in older adults and in kids [1]. That matters because, as he explains elsewhere in the conversation, dopamine activity does decline with age [1]. When Huberman suggests that people get set in their ways because neuroplasticity fades, Ranganath says that's overstated: healthy older adults have "gobs" of plasticity [1]. People get stuck, he argues, partly because of changes in the prefrontal cortex that reduce flexibility and partly because accumulated knowledge makes it harder to be surprised [1]. The scientists who stay vital, in his experience, constantly challenge their beliefs, surround themselves with diverse people and stay open to prediction error, to being wrong [1].

Novelty and surprise drive the same system. Because novelty and surprise engage the same machinery as curiosity, Ranganath recommends exposing yourself to new people, places and situations, and to the possibility of being proven wrong, to keep plasticity engaged [1].

Curiosity can be grown. For people whose curiosity has been channeled only into video games or scrolling, Ranganath says curiosity is "a process of cultivation, and it's a process of appraisal" [1]. His example: a loud noise at night can be appraised as a gunshot or as a great band playing nearby [1]. How you frame something decides whether it becomes a threat or an invitation. Mindfulness helps, he says, because it makes the mundane interesting again: noticing that each breath, or each sound in the backyard, is different [1].

Curiosity sits alongside intention. Ranganath's larger argument is that we forget most of life. He cites Hermann Ebbinghaus, who lost about half of what he memorized within 20 minutes and about two-thirds within 24 hours, and he praises Huberman's advice to "assume that you will forget" [1]. The title question of his book, why we remember, has an answer: intention [1]. He distinguishes attention, which anything loud or shiny can grab, from intention, which directs attention according to an internal goal and depends on the prefrontal cortex [1]. Curiosity and intention work as a pair in his account: curiosity primes the brain to learn, and the prefrontal cortex decides what matters [1].

Other voices he and Huberman bring in. Huberman quotes a line he attributes to Dorothy Parker: "The cure for boredom is curiosity. There is no cure for curiosity" [1]. He also notes that Esther Perel identified curiosity as a key to sustaining long relationships [1]. And he mentions a University of Copenhagen PET study showing increased striatal dopamine during yoga nidra, or non-sleep deep rest [1], a study he unpacks in much more detail in his creativity episode [3].

Maya Shankar: curiosity as the way back after loss

Shankar's story shows curiosity doing something different from boosting recall in a scanner: it gives a person somewhere to go after the thing they built their life around is gone.

The loss. Shankar started violin at six, studied at Juilliard with Itzhak Perlman, and saw herself as a violinist first and Maya second [2]. When she tore a tendon in her hand as a teenager, her dreams ended overnight, and she went through what cognitive scientists call identity paralysis: not knowing who she was or daring to imagine a future [2]. Huberman loves her description that her body grew up around the violin; her right shoulder is still raised and she has mild scoliosis from the posture [2].

The book that lit her up. When she should have been touring China, her father suggested she read widely [2]. She picked up Steven Pinker's The Language Instinct, which revealed the hidden machinery of language [2]. She describes being amazed that small children learn grammar without anyone teaching it: "they just learned because they have these kind of light switches in their brain that are, you know, activated on and off depending on what languages are learning" [2]. Her reaction was an outpouring of new questions: "language is fascinating, cognition is fascinating. And I'm also now wondering about all these other systems that are in place" [2]. She wondered about the mental processing behind "a new discovery or an insider in a ha moment or falling in love or falling out of love. I mean, it just lit up my imagination" [2].

The gentler question. This is the most useful part of her story. Rather than asking whether she loved cognitive science as much as the violin, a bar nothing could meet, she asked herself a gentler question: am I curious enough to want to learn more? [2]. The answer was yes. A few days later she was back at the library, and she then talked her way into upper-level classes and research labs to test whether she enjoyed the actual process, not just the idea of it [2]. Curiosity was the low-stakes first step that made a new direction possible. Curiosity, rather than a demand to recapture an old passion, was enough to begin again [2].

Curiosity as part of a lasting identity. Shankar's larger lesson is about what to anchor identity to. "I have learned in my adult life to anchor my identity to why I do the things I do rather than what I do. And I found this to be a much more durable, reliable relationship" [2]. When she stripped away the surface of the violin, "what I really, really loved and was so drawn to as a young child was the emotional connection that I could form through my music" [2]. That thread reappeared in her research on connection and emotion, her White House policy work and her podcast A Slight Change of Plans [2]. And she now anchors herself to two traits nobody can take from her: deep curiosity and relishing getting better, which protect her from reactions to her work that she can't control [2]. For her, curiosity isn't just a tool for one transition. It's part of who she is.

Being curious about yourself. Shankar turns curiosity inward too. Replying to Huberman's point about curiosity, she says: "we want to be curious, not just about the things we do, we want to be curious about ourselves" [2]. Her guests on the podcast taught her to keep "auditing myself through my change experience to figure out how I have changed" [2], because "change in one area of our life will inevitably have spillover effects into all other parts of our lives in ways that are extremely hard to predict" [2]. She connects this to Dan Gilbert's end-of-history illusion: we see how much we changed in the past but assume "who we are right now in this moment is the person that's here to stay" [2].

Curiosity, fear of change and uncertainty. Shankar calls herself terrified of change and a creature of habit [2]. She notes that humans hate uncertainty so much that, in one study, people were more stressed by a 50 percent chance of an electric shock than by a guaranteed one [2]. She describes the need for cognitive closure, a desire for definite answers, and says research shows that lowering it and becoming more open to mystery boosts well-being and resilience [2]. Openness to mystery is, in effect, curiosity under another name.

Curiosity about other people. Shankar says the greatest gift cognitive science has given her goes beyond curiosity: "Obviously, it's fed my curiosity. It's been a delight to study things and learn things. But the greatest gift it has given me is empathy towards people. It is the greatest driver of human empathy to learn how our minds work" [2]. She describes Daryl Davis, a Black jazz musician who has persuaded dozens of people to leave the Ku Klux Klan by trying to understand their humanity and reasons, asking more questions than he makes statements, and asking "what in theory could change your mind?" [2]. Huberman argues that public health messaging during the pandemic often failed for lack of this kind of curiosity about the other side [2].

Awe and delight. Shankar connects curiosity's cousin, awe, to Dacher Keltner's work: awe involves perceived vastness and a need for accommodation, updating your mental model [2]. Hearing Anne-Sophie Mutter's recording of the Beethoven Violin Concerto at 11 or 12, she was transported, and later, as a cognitive science student, she thought: "I cannot believe a collection of musical notes arranged just so can make me feel this way" [2]. Huberman says New York City awed him as a child, but neuroscience delighted him because he saw a place for himself in it, a role to act in rather than just watch [2].

Huberman's gloss. In this conversation Huberman repeats the Dorothy Parker line, "the cure for boredom is curiosity. There is no cure for curiosity" [2], and says genuine curiosity is self-amplifying because it has no endpoint [2]. Both he and Shankar champion pop science books as a way into science, and Huberman criticizes academic arrogance toward them [2], a fitting point, since a pop science book is what restarted Shankar's life.

Intrinsic motivation. Shankar's early love of violin also shows why curiosity-driven learning lasts. When she found her grandmother's violin in the attic at six, she fell in love, and her parents never had to push her to practice [2]. Huberman connects this to the classic Bing Nursery School finding that rewarding children for something they already enjoy undermines their intrinsic motivation [2].

Andrew Huberman: dopamine pathways behind creative thinking

In his solo episode on creativity, Huberman doesn't use the word curiosity much. What he offers is the other half of the pattern: a map of how dopamine supports the exploring, idea-generating side of thinking, and a behavioral way to raise it.

What creativity is. Huberman defines a creative act as a new combination of existing elements that is useful and reveals something fundamental about how the world or our own brains work [3]. A fish tank with wings is novel but not creative, because it tells us nothing new [3]. He adds that experiencing something truly creative releases dopamine and other neuromodulators, producing surprise, delight and the wish to experience it again [3], which is close to Ranganath's point that surprise and novelty drive the same system as curiosity [1].

Knowledge first. A key corollary: you can only recombine what you already know. "You can't break rules that you don't understand" [3]. Virtuosos almost always spend years building the basic elements of their craft, so being creative requires foraging for structured knowledge [3]. Curiosity is what drives that foraging, and memory is what stores the library that creativity later draws on.

Dopamine as drive, not "hits. Huberman says dopamine is less about dopamine hits" than about motivation, desire and movement, the drive to go beyond our skin and act in the world [3]. This matches Ranganath's view of dopamine as energizing movement toward rewards and information [1].

Two pathways for two kinds of thinking. "Dopamine is responsible for both divergent thinking and convergent thinking, but through separate pathways" [3]. Divergent thinking is idea generation: take one stimulus and radiate out as many possibilities as you can [3]. It relies on the nigrostriatal pathway, from the substantia nigra to the dorsal striatum, which controls body and eye movements. Huberman stresses that "it is actually a brain area that's engaged when you think about movement," even just a story in your mind about walking, running or driving [3]. "That turns out to be vitally important for tapping into the creativity process" [3]. Convergent thinking is the reverse: given several elements, find the one answer that binds them. "It requires focus and it requires persistence" [3]. It relies on the mesocortical pathway, from the ventral tegmental area to the prefrontal cortex, which carries motivation and emotion [3]. The creative process usually runs divergent first, then convergent, then back and forth [3].

The NSDR finding. His standout tool comes from a Danish study (first author Kjaer), described as the first in vivo demonstration of a link between an endogenous neurotransmitter release and conscious experience [3]. Participants did a yoga nidra-style practice, lying still and deeply relaxed while awake. "What they observed was a 65% increase in dopamine release" in the striatum, along with more theta activity, which Huberman says is "commonly associated with creative states and divergent thinking in particular" [3]. As readiness for action fell, visual imagery rose [3]. He calls it a behavioral tool "that can be used to selectively elevate dopamine in the very pathway that one would want to if they wanted to engage divergent thinking" [3].

Timing matters. Huberman is explicit that "divergent thinking itself does not occur during NSDR aka Yoganidra" [3]. Instead, the practice "sets a dopaminergic tone," raising "the baseline of dopamine transmission in that circuitry that then positions you to engage in divergent thinking more effectively" [3]. It also "increases access to the bank or the library, if you will, of possible solutions or elements" [3]. His protocol: 10 to 20, maybe 30 minutes of NSDR, then start divergent work within the five to 15 minutes that follow [3].

Movement as the engine. Because the same pathway links movement and divergent thinking, walking, pacing, running, hiking, swimming or even showering, when your attention isn't locked on one target, seems to activate the brain's loose, pseudo-random wiring and lets normally separate "pages" in the library combine [3]. His best ideas often come on long Sunday runs or hikes with podcasts switched off, and he suggests walking and dictating ideas into your phone without getting pulled into social media or messages [3].

More isn't better. Huberman adds an important limit. Researchers Chermahini and Hommel linked spontaneous blink rate (a noninvasive marker of nigrostriatal dopamine), mood and divergent thinking [3]. A good mood with raised dopamine makes divergent thinking easy, but very high dopamine hurts it, as in mania or with stimulant drugs, where people fixate on one narrow "tunnel" of ideas [3]. People in a low mood struggle with divergent thinking but respond well to music they love, inspiring stories or exercise, while people already in a high mood do worse if they add stimulation [3].

Trainable at any age. Genetics may make some people better at one mode, but experience, especially between about ages 5 and 25, shapes both [3]. For older adults, he says, "you can still enhance your ability to engage divergent and convergent thinking" [3], which lines up with Ranganath's finding that the curiosity effect holds in older adults [1].

Meditation as training. Open-monitoring meditation, letting thoughts come and go without judgment for 10 to 30 minutes, makes people significantly better at divergent thinking within days to about a week, while focused-attention meditation improves convergent thinking [3]. He cites Wendy Suzuki's finding that about 10 to 13 minutes a day for eight weeks improves focus and memory [3], and recommends 5 to 10 minutes of each back to back [3]. This echoes Ranganath's point that mindfulness makes the mundane interesting again [1].

Where They Agree, and Where They Don't

They agree that dopamine is about pursuit, not pleasure. Ranganath describes dopamine as energizing movement toward rewards and information, citing Berridge's wanting-versus-liking work [1]. Huberman says it is less about "dopamine hits" than about motivation, desire and the drive to act in the world [3]. Curiosity, in both framings, is a form of wanting: the brain gearing up to go get something, in this case information. Ranganath's detail that the brain activity was driven by the question rather than the answer [1] fits this neatly.

They agree that curiosity, novelty and surprise are linked. Ranganath says novelty and surprise drive the same system as curiosity [1]. Huberman says encountering something truly creative produces surprise, delight and dopamine release [3]. Shankar's awe experiences involve updating a mental model after something vast and surprising [2].

They agree it's never too late. Ranganath says the curiosity effect on memory holds in older adults and kids, and that healthy older adults have "gobs" of plasticity [1]. Huberman says adults past 25 can still build both kinds of creative thinking [3]. Shankar rebuilt her whole identity through curiosity as a teenager, and she argues we all underestimate how much we will keep changing [2].

They agree on the same deep-rest study. Huberman brings up the Copenhagen yoga nidra PET study in both his conversation with Ranganath [1] and his creativity episode [3], where he gives the 65 percent figure. It is the one piece of direct dopamine measurement in these sources.

They differ on how firmly to tie curiosity to dopamine. This is the most important tension. Ranganath is cautious: fMRI doesn't measure dopamine directly, and assigning one function to one chemical is risky, even though he believes dopamine promotes plasticity [1]. So the headline claim that curiosity "is dopamine" is a simplification his own evidence doesn't fully license: what the trivia study shows is activity in dopamine-related regions and a memory benefit [1]. Huberman is more confident in naming specific pathways and functions [3], and his central number comes from a study that measured dopamine release directly with brain imaging [1][3]. Neither claims the other is wrong; they're simply working with different evidence, and Ranganath is the one explicitly warning about overreach.

They differ on whether more dopamine is better. The simple story curiosity raises dopamine, dopamine helps learning hides a curve. Huberman says very high dopamine hurts divergent thinking, narrowing people into a tunnel [3], and he warns about the dark side of extreme dopamine states, noting a 20- to 30-fold higher suicide risk in bipolar disorder [3]. Ranganath, discussing drugs, stresses huge individual differences and inverted-U dose responses, citing Mark D'Esposito's work on dopaminergic drugs [1]. Both, in other words, reject more is always better. Curiosity is attractive precisely because it's a natural, self-limiting way to engage the system rather than flooding it.

They put curiosity to different uses. For Ranganath, curiosity is a memory tool and a guard against getting stuck [1]. For Shankar, it is a way to find a new direction when the old one collapses, and an anchor of identity [2]. For Huberman in the creativity episode, the relevant dopamine state is a way to generate and then test new ideas [3]. The creativity episode never directly studies curiosity, so linking it to Ranganath's trivia findings is an inference from their shared biology (dopamine, novelty, surprise), not a claim Huberman makes himself.

A quiet difference about control. Shankar treats curiosity as something to follow wherever it leads, testing it gently and letting it expand [2]. Ranganath adds that curiosity needs a partner, intention, because attention can be grabbed by whatever is loudest [1], and Huberman warns that the ideas generated in loose, high-dopamine states still need focused convergent work to become useful [3]. Following curiosity is the start, not the whole job.

Why It Works

Dopamine bursts tag nearby memories. Ranganath's explanation for the unrelated-faces effect is synaptic tagging: a dopamine burst can strengthen memories that form around the same time [1]. The Wiltgen animal work, where locus coeruleus dopamine helped link a tone to a shock many seconds later, shows the same kind of binding across a time gap [1]. Curiosity creates that burst in anticipation, so whatever you encounter while wanting to know is more likely to stick [1].

Wanting drives effort. Berridge's finding that dopamine-depleted animals eat rewards put in front of them but won't work for them [1] explains why curiosity keeps people engaged: it supplies the drive to go after information rather than wait for it. Shankar's parents never had to push her to practice violin [2], and the Bing Nursery School finding shows that external rewards can undermine exactly that kind of self-driven engagement [2].

Prediction and surprise. Because memory exists to predict the present and future, the brain prizes information that corrects its predictions [1]. Ranganath says people get stuck partly because accumulated knowledge makes surprise rarer, and that staying open to prediction error keeps plasticity engaged [1]. Curiosity is a deliberate way of seeking out prediction errors.

Separate pathways for exploring and focusing. Huberman's map says the nigrostriatal pathway supports loose, idea-generating thought and movement, while the mesocortical pathway supports focus and persistence [3]. Deep rest raised dopamine release by 65 percent in the striatum and increased imagery [3], and movement engages the same exploring circuit [3]. That gives a mechanism for why wandering, both physically and mentally, feeds new ideas.

Appraisal and framing. Ranganath's point that curiosity is "a process of cultivation, and it's a process of appraisal" [1] and Shankar's reframing of her question from do I love it as much? to am I curious enough to learn more? [2] both show that how we frame a situation decides whether it switches on curiosity or shuts it down.

Openness buffers stress. Shankar reports that lowering the need for cognitive closure and becoming more open to mystery boosts well-being and resilience [2], which helps explain why curiosity serves people through loss and change as well as in learning.

Where It Applies, and Where It Doesn't

It applies to learning anything, at any age. The curiosity effect on memory holds in children and older adults [1], and adults can keep training divergent and convergent thinking [3].

It spills over to unrelated material, within limits. The trivia study showed better memory for faces seen during the curious wait [1]. That suggests starting a study session with something you're genuinely curious about may help. But the sources describe a window of a few seconds in the lab, not hours, so don't stretch this too far.

It applies to rebuilding after loss. Shankar's story shows curiosity as a low-stakes entry point when nothing else feels possible [2]. It won't always feel like passion at first; her whole point was that she didn't demand it should [2].

It doesn't work if curiosity is hijacked. Ranganath notes that curiosity can get channeled only into video games or scrolling [1], and that retirees who lose their sense of purpose often drift into doomscrolling [1]. Checking your phone fragments memory: "it's the shifting that really kills you" [1]. Huberman keeps social media on an old phone in a box with a daily timer, which he says has greatly improved his focus [1]. Curiosity that hops between feeds isn't the same as curiosity that goes deep.

It doesn't replace focus or knowledge. Huberman says you can't break rules you don't understand [3], and that ideas from loose states still need convergent work to become useful [3]. Ranganath says intention, not raw storage, decides what we remember [1].

It doesn't mean chasing more dopamine. Very high dopamine narrows thinking [3]. Supplements and prescription stimulants raise dopamine across all pathways at once, have off-target effects and, for stimulants, should be used only under a skilled psychiatrist's supervision [3]; people with bipolar disorder should not try to raise dopamine this way [3]. Huberman's stance is behavioral tools first [3]. If you're thinking about any drug or supplement for focus or creativity, talk to a doctor first.

It is not a cure for depression or memory decline. Ranganath calls depression "dangerous for memory it's terrible for memory" [1], and he names lifestyle factors (sleep, exercise, diet, hearing, vision, oral health, social connection) that can reduce dementia risk "by at least 40% if not more" [1]. Curiosity is one piece of a healthy brain, not a substitute for those basics or for professional care when mood or memory is slipping.

Framing depends on the person. Huberman notes that people with ADHD often focus well on what interests them and are strong divergent thinkers, but may need extra support for convergent implementation [3]. Ranganath, who discovered his own ADHD as an adult, found that linking tasks to his values helped: "relating what I do to values is a game changer for me" [1]. For people like this, curiosity may come easily while follow-through needs deliberate help.

What To Do With It

1. Ask the gentle question. When you're rebuilding after a loss or stuck choosing a direction, don't ask whether something matches your old passion. Ask Shankar's question: am I curious enough to want to learn more? Then test it in the real process, the way she went back to the library and into research labs [2].

2. Make yourself curious before you learn. Pose a question and sit with not knowing the answer for a moment before you look it up. In Ranganath's study, the curious wait, not the answer, drove the brain activity, and unrelated information seen during that wait was remembered better [1].

3. Seek novelty and the chance of being wrong. Meet new people, go to new places and put your beliefs up for challenge. Ranganath says this keeps plasticity engaged and is what keeps the most vital scientists from getting stuck [1].

4. Reappraise the mundane. Treat curiosity as a skill you cultivate. Practice noticing that each breath or backyard sound is different [1], or try 5 to 10 minutes of open-monitoring meditation followed by 5 to 10 minutes of focused attention [3].

5. Protect curiosity from scrolling. Do one thing at a time, and engineer your environment, for example by moving social media to a separate device with a daily timer, as Huberman does [1].

6. Use deep rest before creative exploring. Do 10 to 30 minutes of NSDR or yoga nidra, lying still with eyes closed, then start generating ideas within the next 5 to 15 minutes [3].

7. Move to explore. Take a walk, run or hike without podcasts and dictate ideas into your phone, staying out of messages and social media [3].

8. Match your mood to the task. If you're low or middling before idea-generating work, spend 5 to 30 minutes on music, a story or exercise that lifts you; if you're already high, start right away and skip extra stimulation, including caffeine, which Huberman saves for focused convergent work [3].

9. Be curious about yourself and others. During big changes, audit how your relationships, well-being and preferences have shifted [2]. With people you disagree with, raise your question-to-statement ratio and ask what in theory could change their mind, as Daryl Davis does [2].

10. Pair curiosity with intention and good health habits. Link tasks to your values when curiosity runs dry [1], build real knowledge of your craft [3], and protect the brain with sleep, exercise, diet, social connection and care for your hearing, vision and teeth [1]. Get professional help if mood or memory is slipping.

Sources

1. Dr. Charan Ranganath: How to Improve Memory & Focus Using Science Protocols · Huberman Lab
2. Dr Maya Shankar How To Shape Your Identity Goals · Huberman Lab
3. The Science of Creativity & How to Enhance Creative Innovation · Huberman Lab