David Matsumoto (@davidmatsumoto) 's Twitter Profile
David Matsumoto

@davidmatsumoto

Director @humintell. Professor of Psychology @SFSU. 8th degree Judo Instructor. Interests: Emotion, Culture, and Nonverbal Behavior. Dad of 4.

ID: 50771919

linkhttp://www.humintell.com calendar_today25-06-2009 21:12:48

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Humintell (@humintell) 's Twitter Profile Photo

Your eyebrows reflect your inner mental and emotional landscape with amazing speed and specificity. They are involved not just in emotional expression, but also in emotion perception in social situations. humintell.com/2023/08/the-im…

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In this viral video notice the surprise/fear followed by an immediate face cover. People often cover their face to conceal their emotions and I believe it’s an immediate reaction that most people cannot control.

David Matsumoto (@davidmatsumoto) 's Twitter Profile Photo

A recent study from Penn State suggests that a consistent bedtime for children leads to better emotion regulation while under stress or working with others. Learn more: humintell.com/2025/01/the-li…

A recent study from Penn State suggests that a consistent bedtime for children leads to better emotion regulation while under stress or working with others.

Learn more: humintell.com/2025/01/the-li…
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Every interaction is a negotiation. Whether we realize it or not, we’re all salespeople and every interaction is a negotiation in which we persuade and influence others. Learn more: humintell.com/2024/10/why-ev…

Every interaction is a negotiation.

Whether we realize it or not, we’re all salespeople and every interaction is a negotiation in which we persuade and influence others.

Learn more: humintell.com/2024/10/why-ev…
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Does A Smile Mean The Same Thing In All Cultures? We know that expressions differ across cultures, but an exploration of how we recognize smiles brings that observation to the forefront: humintell.com/2019/05/the-cu…

Does A Smile Mean The Same Thing In All Cultures?

We know that expressions differ across cultures, but an exploration of how we recognize smiles brings that observation to the forefront: humintell.com/2019/05/the-cu…
Humintell (@humintell) 's Twitter Profile Photo

Smiling—even forced—can lift your spirits. If you’re having a rough moment, trying a simple smile might engage neural pathways that bias perception toward positivity. humintell.com/2025/08/smilin…

Smiling—even forced—can lift your spirits. If you’re having a rough moment, trying a simple smile might engage neural pathways that bias perception toward positivity.

humintell.com/2025/08/smilin…
Noah Smith 🐇 (@noahpinion) 's Twitter Profile Photo

Jonathon P Sine David Matsumoto wrote a good book looking at a bunch of alternative measurements of Japanese values. Most found that Japanese people are slightly more individualistic than Americans. The WVS is an outlier. goodreads.com/book/show/1085…

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Do you have your copy of Humintell’s Emotion Primer Booklet? This 22 page full-color booklet includes easy-to-understand descriptions and graphics on emotions, their elicitors, functions, and more! Save 40% w/code LABORDAY humintell.com/product/emotio…

Do you have your copy of <a href="/Humintell/">Humintell</a>’s Emotion Primer Booklet?

This 22 page full-color booklet includes easy-to-understand descriptions and graphics on emotions, their elicitors, functions, and more!

Save 40% w/code LABORDAY

humintell.com/product/emotio…
Humintell (@humintell) 's Twitter Profile Photo

When it comes to understanding violent or aggressive behavior, we often focus on psychology or environment. But there’s a hidden factor most people overlook: diet. humintell.com/2025/08/junk-f…

When it comes to understanding violent or aggressive behavior, we often focus on psychology or environment. 

But there’s a hidden factor most people overlook: diet.

humintell.com/2025/08/junk-f…
Humintell (@humintell) 's Twitter Profile Photo

Our site is back up! Did you know many studies published in the last two decades have demonstrated that nonverbal behavior (NVB) can differentiate truth-tellers and liars fairly well? Read more by David Matsumoto: humintell.com/2023/10/the-la…

Our site is back up!

Did you know many studies published in the last two decades have demonstrated that nonverbal behavior (NVB) can differentiate truth-tellers and liars fairly well?

Read more by <a href="/davidmatsumoto/">David Matsumoto</a>: humintell.com/2023/10/the-la…
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What do you do once you observe behavioral indicators of deception in an interview? Read my latest blog post for Humintell humintell.com/2025/10/detect…

What do you do once you observe behavioral indicators of deception in an interview?

Read my latest blog post for <a href="/Humintell/">Humintell</a> 

humintell.com/2025/10/detect…
Humintell (@humintell) 's Twitter Profile Photo

Want to master the skills to read behavior, decode motivation, and lead high-stakes conversations? Sign up to gain early access to Black Friday deals on ALL our online courses starting 11/13: mailchi.mp/humintell/blac…

Want to master the skills to read behavior, decode motivation, and lead high-stakes conversations?

Sign up to gain early access to Black Friday deals on ALL our online courses starting 11/13:

mailchi.mp/humintell/blac…
Humintell (@humintell) 's Twitter Profile Photo

Today’s #BlackFriday Drop Save 75% off our Detecting Deception Advanced Package 📦 $99 for Today Only: humintell.com/product/detect…

Today’s #BlackFriday Drop

Save 75% off our Detecting Deception Advanced Package 📦 

$99 for Today Only: humintell.com/product/detect…
American Psychological Association (@apa) 's Twitter Profile Photo

Giving a gift doesn’t just feel good, it literally lights up the #brain. Research shows it boosts reward, connection, and joy for both giver and receiver. Learn more: at.apa.org/945023

Giving a gift doesn’t just feel good, it literally lights up the #brain. 

Research shows it boosts reward, connection, and joy for both giver and receiver. 

Learn more: at.apa.org/945023