Pain facial expression

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How well can computers interact with humans? But in recent years, scientists have striven for an even more complex goal: programming computers to read human facial expressions. The practical applications could be profound.

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Pain is a major welfare issue and sheep may experience pain as a result of several medical conditions, hoof injuries and mastitis being the most important ones. Some husbandry practices such as tail-docking and castration, which are carried out in several countries, are also painful. Mulesing i. Painful husbandry practices will be covered in a forthcoming fact sheet dealing with treatment of pain in sheep.

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Background Facial expression is often used to evaluate pain in noncommunicative critically ill patients. Objectives To describe facial behavior during endotracheal suctioning, determine facial behaviors that characterize the pain response, and describe the effect of patient factors on facial behavior during pain response. Methods Fifty noncommunicative patients receiving mechanical ventilation were video recorded during 2 phases rest and endotracheal suctioning.

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A series of adults answered a questionnaire on personal and professional data and then they analyzed for 1 minute each of the 3 sets of pictures to answer the following question: "In which picture of this set do you think that the baby is feeling pain? However, the health professional group achieved a lower level of recognition of neonatal facial expressions of pain. Factors related to the personal and professional characteristics of the adults interviewed probably contributed to this result.

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Language: English French. The experience of pain is often represented by changes in facial expression. Evidence of pain that is available from facial expression has been the subject of considerable scientific investigation.

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Assessing pain in cats is difficult, but a new scoring system that interprets changes in facial expression could help provide practitioners with clinical guidance. Researchers at the University of Montreal, including doctoral student Dr. Marina Evangelista, categorized and tested five facial action units indicative of pain in cats: ear position, orbital tightening, muzzle tension, whisker position, and head position.

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Journal of Nonverbal Behavior. A number of investigators have reported that observers can reliably distinguish facial expressions of pain. The purpose of this study was to describe the consistencies which might exist in facial behavior shown during pain.

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