posted on 2013-08-05, 02:33authored byMatthew H. Schneps, Jenny M. Thomson, Gerhard Sonnert, Marc Pomplun, Chen Chen, Amanda Heffner-Wong
The device is suspended from a stable mount in front of the participant, while eye movements are observed using an eye tracking device (partially visible toward the bottom of the photo). In this condition, the participant holds the device. In the NO-HAND condition, the participant’s hands are placed in his or her lap. The PAD condition is similar, except that the iPod is replaced with the larger format Apple iPad. (Photo: Randy H. Goodman).