Children are growing up inside screens. A new peer-reviewed Thought Leaders Invited Review in Brain Health argues that neuroscience has been missing the word for what those screens are touching. The synthesis, by Michel Cuenod and Kim Q. Do at the Center for Psychiatric Neuroscience at Lausanne University with Julio Licinio at SUNY Upstate Medical University, names it: the criticome. The complete record of sensory, motor, social, cultural, and environmental experience the brain integrates during critical periods of synaptic plasticity, from before birth through approximately age twenty-five. What enters during those windows becomes load-bearing. What does not enter, or enters...