Advances in the field of technology and sciences improved the patient care by using highly sophisticated machines. Application of these machines in the intensive care units created a serious problem that has been recently attracted much attention of the health care providers. The patients in ICU experiences a cluster of serious psychiatric symptoms named as ICU psychosis. ICU psychosis is also a form of delirium, or acute brain failure and is also known as ICU syndrome.

Keywords: Psychosis; Delirium; Sensory deprivation.