Ключевые слова: 4050 years, answering, asking, businessman, caucasian ethnicity, communication, computer, discussion, distant, facial expression, hospital, human face, illness, internet, listening, males, mature adult, medical clinic, medical student, medicine, meeting, middle aged, negotiation, nurse, one man only, patient, physical therapist, science, senior adult, support, surgeon, talking, technology, time, treatment, video, video conference, webcam, white, working,