draganski demonstrates the frontal lobe and that it is responsible for motor skills. for example, after 3 months of learning to juggle, the mri showed an increased size of the frontal lobe which then decreased when the participants stopped juggling for another 3 months. this is important because while learning the motor skill, the frontal lobe was consistently in use, causing it to increase in size. when participants stopped juggling, the lobe is no longer used, resulting in volume of the area decreasing, highlighting its true function (motor skills). therefore ...