Experiment Control

Introduction

EGI currently supports a two-machine solution for experiment control.

Net Station records multiple tracks of stimulus or other external events along with the high-density EEG data.

A second computer generates and presents the stimuli and sends simple triggering or complex stimulus identification information to Net Station.

This information can then be used for off-line segmentation and averaging.

EGI also makes its experiment control interface (ECI) available to users who wish to integrate with other experiment control systems.

E-Prime

Working with E-Prime's developer, Psychological Software Tools, EGI has developed a workstation that allows the researcher to take advantage of the flexibility and ease of use of E-Prime in the demanding environment of ERP experiments.

The workstation includes the E-Prime for Net Station software and a CPU/single-monitor hardware configuration that has been tested for reliability and accuracy with the Net Station data acquisition software. The workstation also includes the EGI AV device for verifying stimulus presentation timing and a response pad.

E-Prime for Net Station, like its cousin E-Prime (for non-ERP behavioral experiments where millisecond timing is not necessary), is a revolutionary software suite designed for creating and running psychological experiments.

E-Prime for Net Station allows the user to develop experiments using either its intuitive graphical user's environment or its scripting language and then to run those experiments in conjunction with Net Station to create millisecond-precision ERP experiments using visual or auditory stimuli.