Chronos Adapter for Digitimer [43442]

This article applies to:

E-Prime 3.0

Chronos

Detail

Experiment Author: Psychology Software Tools, Inc.

The Chronos Adapter for Digitimer sample experiment illustrates how to use Task Events to send markers from the E-Prime experiment to the HS7A Stimulator.

Abstract

The sample experiment presents a Visual Oddball Task: each trial presents the letter "O" or "X" and the participant's task is to distinguish between these letters. 80% of the trials present the letter "O" and 20% of the trials present the letter "X". The experiment sends the marker value 1 when the letter "O" is shown and the value 128 when the letter "X" is shown.

The Chronos Adapter for Digitimer provides access to 1 digital output (from Chronos to the Digitimer hardware) as shown below:

When Chronos sends a marker on its first digital output, the signal is sent over the BNC connector. Since Chronos digital outputs are zero-based, the sample experiment calls SetBit 0 and ResetBit 0 to set and clear the digital output.

NOTE: Extract all the files in the attached .zip file to the same folder. The sample experiment displays images that must be located in the same folder as the experiment.