Figure 1.

Stimulation applications are pictured for each of the four geometries under study, where (a,b,d) show half of the coils for improved visualization. (a) A coil designed to fit over top of a 35 mm culture dish which can be used for microscopy; (b) a set of three coils which can be stacked and used for stimulating samples on a multi-well plate with a relatively uniform field; (c) an application of an electromagnet for head-fixed electrophysiology; (d) a coil wound onto a bobbin and inserted into a pot core which could be used for freely behaving animal studies. Created in part using BioRender.com.