This is Unilateral Neglect / Unilateral Visual Inattention caused by a lesion in the representational hemisphere, (which is mostly the right one)
Answer : Condition : Left sided Hemineglect ( also known as Unilateral neglect, Hemispatial neglect or Spatial neglect ) Location of lesion : Right Posterior Parietal Cortex ( Right sided lesions are more common, since Visuo-spatial processing is a function of Non-dominant parietal lobe )