Final answer:
A visual search task can be used to test voluntary gaze in individuals with frontal lobe lesions.
Step-by-step explanation:
In individuals with frontal lobe lesions, a visual search task can be used to test voluntary gaze. This task involves asking the individual to search for a specific target among distractor items in a visual display. The goal is to assess their ability to voluntarily shift their gaze towards the target.
For example, a participant may be presented with a display of letters and asked to locate the letter 'A' among other letters. Their ability to actively scan the display and direct their gaze towards the target is measured. This task can provide valuable insights into the integrity of the frontal eye field region in the frontal lobe, which is responsible for motor commands to orient the eyes towards objects of visual attention.