Facial Expression Recognition With Machine Learning and Assessment of Distress in Patients With Cancer

Distress is a continuous process of unpleasant experience, which could be a normal emotional response of sadness, fear, and fatigue, but it may also deteriorate into depression, anxiety, panic, and other mental crises without early diagnosis and intervention (Riba et al., 2019). Many factors, such as psychological, social, and spiritual environment, are involved in the pathogenesis of distress (Alfonsson et al., 2016). Distress is common in patients with cancer, and it was estimated in Zabora et al.