Cognitive-Science

Do LLMs Have Thinking Styles? REI-40 Experiment on 5 Frontier Models

We administered the REI-40 dual-processing personality inventory to 5 frontier LLMs. The results reveal distinct ’thinking style’ profiles — from neutral responders to rational enthusiasts.

Two Minds in One Brain: Why We Act Irrationally Even When We Know Better

Why can’t you resist that midnight snack during a diet? Two independent processing systems live inside your head—one that calculates and one that feels. A look at Pacini & Epstein’s 1999 study on the Rational-Experiential Inventory.