The article says its for patients "receiving intrusive examinations, surgery, chemotherapy and emergency care". So looks like the target of study is high stres

The article says its for patients "receiving intrusive examinations, surgery, chemotherapy and emergency care". So looks like the target of study is high stress cases. As for cost, no one said you have to install Picasso or brand names. Plenty of local artists could contribute to wall designs, or even contributions from the affiliated hospital university's art department.