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. Author manuscript; available in PMC: 2013 May 16.
Published in final edited form as: Vision Res. 2001;41(0):3243–3254. doi: 10.1016/s0042-6989(01)00054-2

Fig. 2.

Fig. 2

Schematic of the two behavioral paradigms. (A) In the dissociation task, the monkey first aligns the laser and gaze with the red LED. Next, the monkey is required to direct gaze from the red to green LED (R2G movement). This movement, cued by the onset of the green target, is to be accomplished primarily by the eyes. The head is required to stay aligned with the red LED, thus, dissociating the eye-in-head and head-in-space positions. The gaze shift from the green to yellow LED (G2Y movement), cued by the offset of the laser and both red and green targets, does not place any constraints on the head movement; (B) In the standard paradigm, the monkey is required to shift its gaze from a fixation LED, either yellow or green, to a yellow stimulus (Y2Y movement). This movement, cued by the offset of the fixation target, does not place any constraints on initial head position because the laser is not presented in this task.