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.
What causes cold hands syndrome? There are two major vascular disease processes that cause cold hands syndrome: vasoconstriction and vaso-occlusion. Vasoconstriction, which means narrowing in one or more blood vessels of the hand or wrist, is essentially part of a normal regulation process.