The objective of this chapter is to present the effects of voluntary control and stimulus conditions on three types of oculomotor behavior that were previously regarded as different subsystems. Examples are given in this chapter to illustrate that performance is determined by stimulus conditions and voluntary processes. The primary contribution of head movements to saccadic gaze shifts is a reduction of the duration of the gaze shift that results in different characteristics of the velocity profile. These experiments aim to study interactions between saccades and vergence or pursuit and vergence, and to give more insight into the degree to which the performance of the head motor systems and oculomotor behavior is determined by processing in modular subsystems.

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doi.org/10.1093/acprof:oso/9780195068207.003.0071, hdl.handle.net/1765/81804
Erasmus MC: University Medical Center Rotterdam

van der Steen, J. (2012). Timing of Coordinated Head and Eye Movements during Changes in the Direction of Gaze. doi:10.1093/acprof:oso/9780195068207.003.0071