By definition, pet therapy is an intervention that takes place in an individual or group setting, using a carefully selected and trained pet, introduced by a qualified practitioner to a person in order to elicit reactions aimed at maintaining or improving his or her cognitive, physical, psychological or social potential. Pet therapy is not only for people with a particular condition. It is also for those who are going through more difficult moments, whether temporary or permanent, such as people who are bereaved.
Zootherapy is an alternative therapy, assisted by the animal and coordinated by a certified zootherapy practitioner (zootherapist). The animal, controlled by the zootherapist, becomes a therapeutic means and not a therapy in itself, thus allowing contact with the individual who benefits from it. This form of therapy can be found in schools, hospitals, respite centers, speech therapy and occupational therapy clinics, nursing homes, etc. However, pet therapy has been the subject of much criticism due to its lack of methodology and the absence of real empirical studies on its effectiveness.