The purpose of this thesis was to provide insight into the roles of the visual, vestibular and neck proprioceptive systems in the control of locomotion. The general research questions asked by this work are:​ How is the information from the sensory systems located in the head used to create a dynamic reference frame for locomotion? Is there a general rule for how these sensory inputs primarily, vestibular and proprioception information from neck muscles, are combined following head yaw movements during locomotion? Three separate studies were designed to answer sub-sets of these questions. The first study applied unexpected perturbations to the head about the yaw axis during locomotion to determine the effects of these localized perturbations on overall whole body movements with and without visual input. The unexpected head yaw movement resulted in a change in travel direction based on altered sensory input;​ direction specific global modifications of gait were interpreted as the initiation of previously reported steering responses observed during navigational tasks. The second study asked participants to voluntarily move their head about the yaw axis to determine if the same steering responses observed in the first study (feedback control task) were apparent when a voluntary head yaw movement was initiated (feed-forward control task). A conflicting re-orientation of the reference frame transpired whereby components of the steering response were released following the head yaw movement (trunk yaw, trunk roll and medio-lateral center of mass modifications). Gait trajectory, however was not modified, potentially due to a perceived threat to whole-body safety. The third study used a combination of unexpected head yaw perturbations (altered vestibular and neck proprioceptive input) and vibration of the neck musculature (altered neck proprioceptive input) to provide either conflicting or similar sensory information about body orientation in space. The observed responses indicate that the central nervous system integrates sensory input from the head segment in an additive manner, similar to that observed in postural literature, to reorient the reference frame and generate appropriate gait pattern responses. Vision did not influence interpretation of altered sensory input about head yaw motion. It is clear from these studies that sensory input from the head segment is integrated by the central nervous system and used to generate a stable reference frame for movement.