June 18, 2012 -
“This is a huge development for the psychophysiological research community as we are now able to provide the most precise correlation between screen stimuli, subject gaze patterns and internal biometric reactions,” says Tom Englund, president of Tobii Analysis. “With this solution, researchers will also gain greater insight into studies that require high temporal resolution, such as reaction time tests and subliminal single-frame stimuli tests, as well as the ability to more accurately formulate their conclusions.”
Reaction time is important and StimTracker for Tobii TX300 Eye Tracker eliminates timing errors by using an analog light sensor. Using digital devices can subject the research to inaccuracy because of delays cause by operating systems, graphic cards or flexible pixel refresh algorithms. SlimTracker can process events from light sensors, 6 TTL inputs, 2 audio channels and voice key input. With high accuracy provided by StimTracker for Tobii TX300 Eye Tracker, the researcher can synchronize screen stimuli, eye-tracking data with broad spectrum of data types such as EEG, heart rate, motion detection, NIRS, respiration rate, skin conductance, light and sound.
According to Cedrus President Hisham A. Abboud, the collaboration with Tobii is timely because it can address the need of psychophysiological research customers for a precise synchronization and timing solution “that allows them to send simultaneous event markers to EEG and eye trackers. StimTracker will enhance the integrity of EEG and biometric data collected during an eye-tracking study and will help expand the knowledge surrounding the implications of brain activity and reaction times.”
Tobii will be releasing Tobii Studio 3.1 to support the technology, and this will be equipped with new light-sensor trigger and external event registration features.