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.
On a rare basis, however, adults can experience hand and finger pain caused by vascular insufficiency as a result of a variety of vascular overuse syndromes. Case 1 illustrates and discusses an uncommon vascular overuse syndrome, the hypothenar hammer syndrome.