I would like to know if there are studies that (1) model the field of view taking into account all degrees of freedom of the head, neck and eyes and (2) if there is any probabilistic model assigned to the field that is independent from external stimuli, e.g. saliency.
An example to illustrate this, is the following:
A man is inside a black room (no saliency, no external stimuli) and he is walking or standing. Now, inside this room, take a point in space that is not on the man. What is the likelihood that the man gazes (equals to have the right head, eye and neck coordination) towards this point at a given moment t1?