Equipment

The Language Acquisition and Language Processing Lab has two Tobii 1750 Eye Trackers. These consist of a TFT display with an integrated eye-tracker camera that films the eyes. Sources of near infrared light produce reflections of the pupils and cornea. These reflections are used by the system to calculate eye movements and where someone is looking on the display. The advantage of using Tobii is that it measures both eyes and is not overly restricting head movements.

A Tobii eye-tracker can be used in preferential looking experiments (see the section on research with children), but also for measuring on-line eye-movements over single images or other stimulus material (such as video, animation, or text). Apart from eye tracking the lab offers the possibility to conduct a host of other computer generated experiments with which reaction time data, verbal responses, forced-choice data, and other kinds of data can be gathered.

The testing room in the lab is isolated against distracting noises. The controlling of experiments can be done from a separate room.