If the correlation coefficient has a positive value (above 0) it indicates a positive relationship between the variables meaning that both variables move in tandem, i.e. as one variable decreases the other also decreases, or when one variable increases the other also increases.
What Causes Alien Hand Syndrome? Despite the movements involved with alien hand syndrome, it isnât technically a movement disorder. Instead, it appears to occur as the result of some type of neurological damage. Common causes include: Stroke. Tumors. Various neurodegenerative diseases.
Hand, foot, and mouth disease is caused by viruses that belong to the Enterovirus genus (group), including polioviruses, coxsackieviruses, echoviruses, and enteroviruses. 1  Coxsackievirus A16 is the most common cause of hand, foot, and mouth disease in the United States, but other coxsackieviruses can also cause the illness. Enterovirus 71 has also been associated with cases and outbreaks of hand, foot, and mouth disease. Less often, enterovirus 71 has been associated with severe disease, such as encephalitis.