Rec Controller Output#

Annotated settings interface for the Rec Controller Output plugin
Triggers the digital output lines of an Intan RHD Recording Controller.#

Plugin Type

Source

Platforms

Windows, Linux, macOS

Built in?

No; install via RHD Recording Controller

Key Developers

Josh Siegle, Aarón Cuevas López

Source Code

open-ephys-plugins/rhythm-plugins

Installing and upgrading#

The Rec Controller Output plugin is not included by default in the Open Ephys GUI. To install, use ctrl-P or ⌘P to open the Plugin Installer, browse to the “RHD Recording Controller” plugin, and click the “Install” button. After installation, Rec Controller Output will appear in the processor list on the left side of the GUI’s main window.

The Plugin Installer also allows you to upgrade to the latest version of this plugin, if it’s already installed. The plugin must be removed from the signal chain prior to upgrading.

Plugin configuration#

If this plugin is placed downstream of the RHD Rec Controller plugin, as well as a plugin that generates TTL events (e.g., Crossing Detector or Ripple Detector), the digital output channel specified by the TTL_OUT parameter will be temporarily set to high each time a TTL event is received on the TRIGGER_LINE. The approximate duration of this event (in milliseconds) is set by the EVENT_DURATION parameter.

This configuration can be used to perform closed-loop feedback experiments in which some feature of the neural data (such as phase of an oscillation, or the presence of a ripple event), is used to trigger stimulation.

Because the board will also be acquiring data, response times may be longer than when using a dedicated piece of hardware for generating outputs. If faster feedback is required, we recommend using the Arduino Output or Pulse Pal plugins instead.