Headshot of Alexxai Kravitz.

Alexxai Kravitz

Associate professor of psychiatry
Washington University in St. Louis

Alexxai Kravitz is associate professor of psychiatry at Washington University in St. Louis, where he leads a team of researchers that focuses on understanding how the brain mediates feeding and obesity in mice. In addition to a passion for understanding feeding, his lab has a strong interest in developing open-source hardware devices to study rodent behavior, and in adopting open-science practices for neuroscience research.

Explore more from The Transmitter

Illustration of folded origami.

Dimensionality—neuroscience’s red herring?

Placing too much emphasis on a specific interpretation of dimensionality, or treating it as an end-all quantification of some aspect of neural computation, may hinder progress in understanding the brain.

By Matthew Perich
7 September 2026 | 8 min read
Monkeys at Dutch primate center.

Dutch primate center awaits October animal research debate

Science is forging ahead at the Biomedical Primate Research Centre in the Netherlands, following a reversal of last year’s mandate to phase out primate studies. But researchers aren’t sure how long the reprieve will last.

By Lauren Schenkman
2 September 2026 | 5 min read

When we sleep, our brain is filled with spontaneous neural activity. What is it doing?

Daniel Levenstein explains how internally generated brain activity during sleep shapes our cognition, and why NeuroAI is such a powerful approach to understanding the brain.

By Paul Middlebrooks
2 September 2026 | 96 min listen