What are effects of pets on people with dementia?

Positive. It has become clear that pets regularly brought into environment of demented patients living in a home setting or a nursing home is very beneficial. They smile more, are less agitated, become more alert, talk more expressing more appropriate emotions and are less depressed. The overall efffect is very positive and therapeutic.
Pet therapy. Increases socialization and decreases agitation in dementia patients.
Positive. Companion animals have benefit to patients with dementia in they serve to help calm them down and reduce inappropriate behaviors.