Stimulus Generation and Presentation
Stimuli are generated using Matlab and Psychtoolbox routines and presented on a gamma corrected CRT monitor (120Hz refresh rate). A bits++ digital video processor effectively increases the resolution of the graphics card to 14bit to allow presentation of low contrast stimuli.
Stereo experiments are conducted using a mirror stereoscope where separate images on the monitor are presented independently to the left and right eyes. Head position is stabilised using a chin rest.