Talks at GoogleEthan Kross | Chatter | Talks at Google
Talks at Google
Background and Path to Psychology 0:07
Ethan Kross grew up in Canarsie, Brooklyn, and describes his father as an unconventional mix of gruff New Yorker and amateur student of Eastern philosophy, who read the Bhagavad Gita and Tibetan Buddhist texts and talked to his young son about them. His father taught him to go inside himself and listen to an inner voice whenever he hit a bind, and Kross carried that habit into adolescence, using introspection to work through rejection and arguments with his parents. In his first college psychology class he learned that this same capacity to turn inward with language is both a human superpower and a source of massive suffering, which sparked his interest in using science to understand when introspection helps and when it does not. He studied at Columbia and now runs the Emotion and Self-Control Lab at the University of Michigan.
Studying Heartbreak in the Brain 6:31
To explore why people describe emotional pain in physical terms, like saying their heart was torn out, Kross and his collaborators recruited recently dumped New Yorkers through flyers in subway stations and parks, paying them to take part in an fMRI study at Columbia. Inside the scanner, participants looked at a photo of the person who rejected them alongside a phrase describing the moment of rejection, which reliably triggered strong emotional pain, and this was compared to physical pain induced by a heated metal plate called a thermode placed on the forearm. The study found genuine overlap between the brain's response to social rejection and to physical pain, suggesting that because humans are a social species, a physical pain alarm system activates when an important bond is severed.
Media Attention and a Threatening Letter 10:04
After the rejection study was published in a high-impact journal, Kross suddenly found himself invited onto ABC or CBS Evening News, and about a week later he received a threatening letter in the mail containing a racist drawing of him and menacing language. That letter sent him into what he now calls his first real chatter spiral, and it also helped him identify one of the coping tools he later studied in depth.
What Chatter Actually Is 11:30
Kross defines the inner voice as the ability to silently use language to reflect on your life, something he demonstrates by having the audience repeat a phrase in their heads. This inner voice underlies working memory, mental rehearsal before presentations, self-motivating talk during exercise, and the stories people tell themselves to make sense of who they are. The trouble is that this same valuable tool, when turned toward difficult news or uncertain futures, can spin into repeated looping instead of producing clear answers, and Kross calls this looping chatter, encompassing what researchers separately label rumination, worry, and perseveration.
The Bat, the Letter, and Distanced Self-Talk 15:00
After the threatening letter, Kross Googled the return address, found it was near his home, and got confirmation from police that little could be done beyond varying his route home. With a newborn daughter in the house, he took his childhood Little League bat and stood watch through the night for several days, at one point almost searching for bodyguards for academics before catching himself by saying aloud, Ethan, what are you doing. Using his own name broke the spiral, and Kross explains this reflects a real phenomenon called distanced self-talk, where referring to yourself by name or as you shifts you into the same perspective you use when advising a friend, making it easier to manage emotions and curb rumination even though people are often far better at giving advice than following it themselves.
Getting Support Right, and the Power of Belief 20:00
Kross explains that venting to others feels good and strengthens relationships but does not actually help people work through chatter on its own. A truly productive support conversation lets someone verbalize what they are going through and feel normalized, then moves them toward making sense of the experience, often by asking what they did last time rather than dictating solutions, because people have both social-emotional needs and cognitive needs that must both be met. He then turns to belief itself as a tool, describing how placebos work by harnessing expectation, and how reframing a stressful situation as a challenge rather than a threat, by believing you have the resources to meet its demands, shifts your body's physiological response and improves performance, the same mechanism behind Olympic athletes who train themselves to relabel pre-competition jitters as excitement.
Anxiety as fuel, not threat 28:30
Feeling anxious before something important is not automatically bad. Ethan Kross explains that anxiety is an alert response, your body waking you up because something significant lies ahead. He recalls his own worst presentation, one he had barely prepared for and felt no butterflies about beforehand, and argues that people often misread physical anxiety symptoms as a sign of threat rather than as preparation for action. Reframing those butterflies as your body revving up like a Lamborghini, rather than panicking, can shift you onto a completely different trajectory.
From book to workbook 29:32
Kross describes how the original question behind Chatter, why our attempts to work through experiences sometimes succeed and fail, started in his freshman year of college. After the book tour, audiences kept asking broader questions about emotions themselves, which led to a second book on what emotions are and why we have them. Demand for practical tools then led to a workbook, built to be descriptive rather than prescriptive, pulling the tools from the book into an interactive format so people can jump straight to relevant exercises, like turning to specific pages when an inner critic flares up before a date or presentation.
Turning knowledge into habit 33:03
Kross explains a tool called a hoop, an implementation intention paired with mental contrasting, to help people move from knowing to doing. It involves picturing your goal and what success looks like, identifying obstacles that might stop you, and creating a specific if-then plan for when you struggle. Research shows rehearsing these plans works even for five-year-olds, and Navy SEALs use a version of it for missions. Kross also stresses there is no universal two-step fix for chatter, comparing his approach to a mental fitness gym where different tools suit different people, and closes by mentioning the newly launched Institute for Mental Fitness at the University of Michigan.
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