09-02-2020, 08:28 AM
You can calculate saccadic reaction times (RTs) using one of two methods, depending on whether you need the information live during the experiment or can wait until after data collection.
Method 1: Calculating RTs in Real-Time
If you need to use RTs to control logic within a trial, you can calculate them live by using an Update Attribute node to store the difference between the stimulus display time and the time the saccade trigger fires.
For a more detailed guide, please see the article: How can I accurately keep track of reaction times (RT) for participant responses?
Method 2: Extracting RTs from EyeLink Data Files
If you do not need real-time access to RTs during the experiment itself, the simplest approach is to extract them from your data files after collection using Data Viewer. All necessary event and timing information is stored in the EDF file.
Method 1: Calculating RTs in Real-Time
If you need to use RTs to control logic within a trial, you can calculate them live by using an Update Attribute node to store the difference between the stimulus display time and the time the saccade trigger fires.
For a more detailed guide, please see the article: How can I accurately keep track of reaction times (RT) for participant responses?
Method 2: Extracting RTs from EyeLink Data Files
If you do not need real-time access to RTs during the experiment itself, the simplest approach is to extract them from your data files after collection using Data Viewer. All necessary event and timing information is stored in the EDF file.