As a neuroscientist with expertise in the study of the brain and its functions, I can provide insight into the question of whether a person can cry while in a coma. Crying is a complex emotional and physiological response that involves the coordination of various parts of the brain, including the limbic system, which is responsible for emotions, and the autonomic nervous system, which controls involuntary bodily functions. It also involves the tear glands, which produce tears in response to emotional stimuli. A person in a coma is characterized by a profound unconscious state where there is a loss of wakefulness and awareness. The level of consciousness is severely impaired, and the individual is unresponsive to external stimuli. In a coma, the brain's ability to process emotional stimuli and coordinate a response is significantly reduced or absent. Given this, it is highly unlikely that a person in a coma would be able to cry. The emotional and physiological processes necessary for crying are not typically functional in a comatose state. However, it's important to note that there can be exceptions in medical cases, and some reports have described instances of autonomic responses in comatose patients, but these are rare and not well understood. In summary, while the possibility of crying in a coma is not completely out of the realm of possibility, it is generally considered to be an extremely rare occurrence. read more >>

This is a type of coma in which a patient does not emerge from unconsciousness �� at least not fully. ... In terms of potential 'functioning,' patients in a vegetative state are often seen to make spontaneous movements. Their eyes may open in response to some external cues. Or they occasionally grimace, cry, and even laugh.read more >>