KARMA's graphics must change in response to head motion
and must be registered with objects in the real world.
Data were excluded if head motion
exceeded 1 mm and 1[degrees] during fMRI acquisition.
All experimental data were collected using the GELP technique, described in the Method section, with the listener's head fixed by means of a chin rest in order to eliminate head motion
as a cue to source location.
Because the vestibular system senses head motion
, it is less sensitive to body sway than is the visual or the somatosensory system.
For example, advanced military systems can map pilot head motion
into weapon trajectories.
We also recorded the 6 parameters describing residual remaining head motion
for the final correction, using a postacquisition standard motion correction method (run in Brain Voyager QX 2.4) for final coregistration of all acquired functional volumes.
However, the particular task involved (control inputs via a joys tick or steering wheel) in these previous studies was not as intimately coupled to visual scene response as is self-generated head motion
, so the generalization of these results to head-coupled environments is unclear.
was measured prior to and during exposure to imposed optical flow.
Head position data were used to create plots of participants' head motion
activity during each trial and to calculate two quantitative metrics of head motion
: total angular head displacement (i.e., angular distance that the head traveled throughout an experimental trial) and average head velocity.
Instead, it knows where you are and what you're facing using a 9-axis head motion
sensor and the GPS from your iOS or Android device -- and automatically adds a layer of audio through Bose AR apps, connecting that place and time to endless possibilities for travel, learning, entertainment, gaming and more," the statement adds.