STAMFORD - ? The Stamford woman mauled by a chimpanzee in February is now using a voice box to communicate with nurses.

Charla Nash?s brother says she?s now able to tell nurses when she?s cold, tired or wants to be alone. She?s also moving her feet to respond to doctor?s commands.

Nash lost both her hands and most of her face after the chimp attack. She may be blind and have brain damage. Nash is in critical but stable condition at the Cleveland Clinic.