Using the quadrature encoder to track locomotion

Scanbox allows you to acquire the position of a rotating platform at each frame of the microscope.  To do so, you need a quadrature encoder to be mounted on the axis of your platform.  We use the US Digital HS-360-IE-S, but any quadrature encoder will do as well. The encoder needs to be wired to an Arduino…

Read More

An active treadmill to control locomotion

As documented in several publications, active locomotion can strongly modulate cortical activity. I explained earlier how Scanbox uses a quadrature encoder to be able to control, in real time, an external stimulus that depends on the state of locomotion. In this way, we can design experiments in which stimuli are delivered during periods of locomotion or rest. However, if either locomotion…

Read More

Scanbox closes the loop with a quadrature encoder

If you have downloaded the latest version of Scanbox you may have noticed there is a new “Quadrature Encoder” panel and wondered what is does. In addition to ball tracking, you now have the option of tracking the 1D movement of a circular platform. The position of the platform is monitored by an optical quadrature encoder…

Read More