Two Guys on Your Head

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April 12, 2024

The Soup Study Revisited

By: Rebecca McInroy

A classic study found that individuals eat less soup when they have a visual cue of how much they have eaten, thus demonstrating the power of external cues about eating. However, this research, done by Brian Wansink and his colleagues in 2005, was called into question by the lead researcher’s demonstrations of scientific misconduct.

A new research team, led by Alejandra Lopez, has replicated the study and published its findings in the Journal of Experimental Psychology: General. The team found that the main results hold up.

Yet, as Dr. Art Markman, and Dr. Bob Duke, discuss in this episode of Two Guys on Your Head, that the findings replicate is one thing, but how we interpret and use this information is another story altogether.


Episodes

October 17, 2025

Bad Luck, Superstitions, and Safety Behaviors

When it comes to luck, we often focus on the good kind, but what about bad luck, superstition, and the strange rituals we turn to for comfort and control? On this episode of Two Guys on Your Head, Dr. Art Markman, Dr. Bob Duke, and Rebecca McInroy talk about how these beliefs and behaviors can […]

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October 10, 2025

Luck

Chance may favor the prepared mind, but if you’re only looking for a lucky break, you may miss out on something much more important. In this episode of Two Guys on Your Head, Dr. Art Markman, Dr. Bob Duke, and Rebecca McInroy talk about the psychology of luck.

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October 3, 2025

The Weighted Vest: an update on popularity

Popularity shapes our choices every day, but in today’s world, what we perceive as “popular” is often steered by algorithms, targeted ads, push notifications, and the constant pull of social media; forces we may not fully recognize. In this episode of Two Guys on Your Head, Dr. Art Markman, Dr. Bob Duke, and Rebecca McInroy […]

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September 26, 2025

The Psychology of Popularity

We often assume our choices reflect personal taste: selecting the “best” products, enjoying the movies we “want” to see, and listening to the music we believe is “good.” Yet underlying these decisions is the powerful influence of popularity. It doesn’t just affect what we buy—it informs how we evaluate ideas, people, and beliefs. In this […]

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September 19, 2025

How We Determine Value (Rebroadcast)

Humans may take the card we swipe for granted at the grocery store when we buy food, or look at our bank balance and not even think of how unique it is that we can translate those little numbers into experiences and things. It’s merely one of the benefits of having big brains. In this […]

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September 12, 2025

Mental Health in the Media Storm

Every day we’re surrounded by a flood of negative headlines, and it can take a real toll on our mental health. In this episode of Two Guys on Your Head, Dr. Art Markman, Dr. Bob Duke, and Rebecca McInroy share practical ways to protect your well-being and stay mentally strong in the midst of all […]

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September 5, 2025

The Psychology of Personal Resistance

To resist or not to resist? That is the question. And the answer is—shocker to no one—it depends. But what it depends on matters a lot. In this episode of Two Guys on Your Head, Dr. Art Markman, Dr. Bob Duke, and Rebecca McInroy explore the fine line between resistance as healthy self-preservation versus resistance […]

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August 29, 2025

The Weather and Social Media Use

We spend an increasing proportion of our time online, and, given the importance of social media to human welfare, the external factors that shape online behavior are important to consider. In this episode of Two Guys on Your Head, Dr. Art Markman, Dr. Bob Duke, and Rebecca McInroy explore social media use and the weather. […]

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