 The goal of AAT is to improve a patient's social, emotional, or cognitive functioning and literature reviews state that animals can be useful for educational and motivational effectiveness for participants.There are various studies documenting the positive effects of AAT reported through subjective self-rating scales and objective physiological measures, such as blood pressure, hormone levels, etc.Wilson's (1984) biophilia hypothesis is based on the premise that our attachment to and interest in animals stems from the strong possibility that human survival was partly dependent on signals from animals in the environment indicating safety or threat.