How to Avoid Buyer's Remorse This Black Friday, Guardian (2025)

The $19 Strawberry That Went Viral. Sarah Bock, UC San Diego Today (2025) 

Quoted in The Internet is a mall, and we are trapped inside it , Washington Post (2025)

The Science of Shopping, Christine Clark, UC San Diego Today (2024)

Subscriptions Are Hard to Cancel and Easy to Forget — by Design, Tommy Tindall, Nerdwallet, reprinted in the Detroit Times  (2024)

Why do we keep buying new stuff? Archana Ram, Patagonia (2023)

Binge-watching more controlled than previously thought, UCSD study finds Thomas Fudge, KPBS (2023)

Binge-watching more controlled than previously thought, UCSD study finds ABC10 New San Diego (2023)

Decisions, decisions: How gender shapes choices Psychonomics Society Featured Content (2023)

Featured in "Do Two PhDs Make Twice the Researcher?" Nature (2022) 

UCSD Study : Online shoppers pleased by product matches, but too much info can kill the sale. Times of San Diego. (2021) 

Neuromarketing: How brands are getting your brain to buy more stuff. Planet A, DW (2021) 

Understanding the temporary pause on J&J vaccines as the variants spread. MPR News with Kerri Miller (2021) 

Quoted in "Vaccine Cheat Days Are  Adding Up" (2021) The Atlantic

Quoted in "Yes, we've undersold the vaccine. Marketing can fix that." (2021) MM+M

Quoted in "What you can do post-vaccine, and when" (2021) New York Times

Quoted in "Daily Coronavirus Testing at Home? Many Experts are Skeptical" (2020) New York Times

Why Neuromarketing Matters in B2B (2020) B2B Growth: Your Daily B2B Marketing Podcast, hosted by Postal.io 

Featured in Episode 6 of "You Ain't Got These" (2020) Quibi

Giz Asks : Why Does Spending Money Feel So Good? (2020) Gizmodo

Quoted in "Why We Hoard: Fear at root of panic-buying, psychologists say" (2020) San Diego Union-Tribune

Quoted in " Experts Have Never Seen A Political Ad Blitz Like Bloomberg's" (2020) Slate Magazine

Quoted in "Breaking Bad Habits" (2020) Prevention Magazine. 34-41. 

Pricing Strategy: 7 factors marketers can leverage to increase sales. (2019) MarketingSherpa

Terms of Disservice (2019) People Science

Quoted in "Humans are surprisingly honest when it comes to returning lost wallets" (2019) PBS NOVA

Quoted in "Lady Gaga, Tyra Banks, and the Disneyfication of Fashion" (2019) New York Times

Ahlgrim, N., Garza, K., Hoffman, C., Coolidge, S., & Purcell, R. H. (2019). Select Interviews From the INS Annual Meeting—Keith Humphreys, Tom Insel, Uma Karmarkar, Carl Marci, Ariel Cascio, Winston Chiong, Frederic Gilbert, Cynthia Kubu, and Jonathan Pugh. AJOB neuroscience, 10(1), 62-68.

"Neuromarketing: What you need to know" (2019) Harvard Business Review

"Don't make me pick" (2018) Psychology Today

"Forum Explores Consent, Ethics, and Neuromarketing" (2018) KPBS Radio Interview 

Quoted in "Both mice and men struggle to abandon their best laid plans" (2018) Smithsonian

"How to handle bad customer service ... without holding a grudge" (2018)  NBCNews.com 

Tips to avoiding overspending during the holiday period. (2017) WalletHub

"If you want to sell a product online, surround it with similar products" (2017) Forbes

"Consumer Neuroscience: Advances in Understanding Consumer Psychology" (2017) Neuromarketing Yearbook, NMSBA

"How Retailers Use Emotion to Make You Spend More" (2016) CNBC 

"'Sleeping on It' Doesn't Lead to Better Decisions" (2016) Harvard Business Review

"The Upside of Uncertainty" (2016)  Scientific American

"Why Sleeping on a Decision May Not Help You" (2016) Entrepreneur

"Shop with a Reusable Bag? Then You're More Likely To Buy Junk Food" (2015) The Telegraph 

“Should You Put the Price First or Last?”, (2015)  Neuromarketing: Where Brain and Science Meet 

"A New Study Suggests that Sleeping On A Decision Might Not Do Much" (2015) New York Magazine

"Shoppers With Reusable Bags Buy More Junk Food" (2015) MarketWatch

"Reusable Bags Make People Buy Organic - And Junk. An Interview with Uma Karmarkar" (2015) Harvard Business Review

"Eco-Waverers" (2015) The Economist

"Neuromarketing: Tapping in to the Pleasure Center of Consumers" (2013) Forbes

What Neuroscience Tells Us About Consumer Desire (2012) Harvard Business School Working Knowledge

Defend Your Research: Experts Are More Persuasive When They’re Less Certain (2011) Harvard Business Review

For Critics, Soft Approach Can Go Far (2009) The New York Times

"At Split Second Intervals, Brain Has a Sense of History" (2007) Scientific American