“…While there are membrane potential measurements that can only be carried out in single cells, assessment of neuronal populations can be highly informative as well. Multi‐electrode arrays (MEAs) allow recording of the electrical activity of neuronal networks grown on multiple extracellular electrodes (Berdondini et al, ; Chiappalone, Bove, Vato, Tedesco, & Martinoia, ; Illes, Theiss, Hartung, Siebler, & Dihné, ; Novellino et al, ; Otto, Go, Fleischer, & Siebler, ; Quasthoff et al, ; Schock et al, ). The advantages of this technology are its relative simplicity, compactness and ease of monitoring, as well as its potential for high throughput (Hales, Rolston, & Potter, ; Pine, ; Spira & Hai, ).…”