Cat’s meow: Robotic pet boosts mood, behavior

Video: The robotic cat responded by purring, meowing, turning its head, rolling or blinking.
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Photo credit: Florida Atlantic University

People with Alzheimer’s disease or related dementia (ADRD) often experience behavioral and psychological symptoms such as depression, aggression, and anxiety. Often these symptoms are treated with antipsychotics, antidepressants, and benzodiazepines, which often have side effects.

While pet therapy is known as a cost-effective and therapeutic intervention for improving mood and behavior in older adults, little is known about pet therapy in adult day centers, despite logistical benefits such as socialization and group activities.

With the help of a cozy and “furry” companion, researchers at Florida Atlantic University’s Christine E. Lynn College of Nursing tested the effectiveness of affordable, interactive robotic cats to improve mood, behavior, and cognition in older adults with mild to moderate dementia . The non-pharmacological intervention took place over 12 visits to a day care center for adults. Participants were informed that their pet was a robot, not a live animal. Each of them chose a name for their cat, which was provided with a collar and a personalized name tag.

For the study, published in the journal Issues in Mental Health Nursing, researchers rated mood and behavioral symptoms using the Alzheimer’s disease and related dementia mood scale, the observed emotion rating scale, and the Cornell scale for depression in dementia. They also assessed cognition via the mini-mental state examination.

The results showed that the robotic house cat intervention improved all mood scores over time, with significant improvements in the observed emotion rating scale and the Cornell scale for depression in dementia. More than half of the participants performed better in the post test of the mini-mental state examination than in the pretest, with slight to moderate improvement in attention / calculation, language and registration. Post-test scores for Alzheimer’s and related dementia were six points higher than pre-test conditions.

Researchers often observed study participants smiling and talking to their robotic cats and expressing feelings such as “The cat looks at me like someone who listens to me and loves me.” They believed that the robot pet responded to their statements by meowing, turning its head, or winking, and that they were having a conversation with the animal. Several of the carers reported that their loved ones slept with the cat, held on to the cat while sitting, or played with the cat all the time. One participant even slept with her robotic cat while she was hospitalized.

“Since there is no cure for dementia, our project offers a way to manage symptoms naturally and without the use of pharmacological treatments that may or may not be effective and have potentially harmful side effects,” said Bryanna Streit LaRose, DNP, APRN, Main author who carried out the study as a doctoral student in nursing at FAU, together with co-authors Lisa Kirk Wiese, Ph.D., RN, associate professor and chair of Streit LaRose, and María de los Ángeles Ortega, DNP, APRN, Professor, Director of the Louis and Anne Green Memory and Wellness Center at FAU and Community Chair of Streit LaRose for the project, both within Christine E. Lynn College of Nursing. “Our procedure was affordable, safe and non-invasive.”

By using therapeutic pets instead of live pets, there were no concerns about the pet’s safety, feeding it, taking it outside, or making sure it was up to date with its vaccines. In addition, there were no concerns about participant safety due to possible pet aggressions, allergies, tripping hazards, and the cost of caring for a live animal.

“In addition to improving mood, behavior and cognition, these robotic house cats offered our participants an alternative way of expressing themselves,” said Wiese. “Importantly, improving general mood and behavior in people with Alzheimer’s and related dementia can also improve the quality of life of their caregivers and family members.”

Researchers also examined the relationship between the Mini Mental State Examination and the subscale post-intervention scores of the Cornell Depression Scale for Dementia, the Observed Emotion Rating Scale, and the Mood Scale for Alzheimer’s Disease and Related Dementia. They found several significant and strong correlations between the 11 subscales of the Alzheimer’s Disease and Related Dementia Mood Scale and Mini Mental State Examination after the intervention. Nine categories related to pleasant mood / behavior positively correlated with the mini-mental state examination score, indicating a relationship between positive mood / behavior and increased mini-mental state examination scores.

“In the United States, one in three older adults dies of Alzheimer’s or related dementia, and there is currently no cure for the rapidly growing burden,” said Safiya George, Ph.D., dean of Christine E. Lynn College of Nursing. “This therapeutic interactive pet intervention has been shown to be a safe alternative to improving mood and behavior in people with dementia attending adult day care.”

The Christine E. Lynn College of Nursing at FAU received the 12 robot pets for the project with the support of an Iota Xi Sigma grant from FAU and financial support from Ageless Innovation.

– FAU-

About the Christine E. Lynn College of Nursing:

The Christine E. Lynn College of Nursing at FAU is known nationally and internationally for its excellence and philosophy of nursing science. The college was ranked 11th nationwide by US News and World Report in 2021 for “Best Online Masters in Nursing Administration Programs” and 32nd for “Best Online Masters in Nursing Programs”. In 2020, FAU graduates passed the National Council Licensure Examination for Registered Nurses (NCLEX-RN®) with 95.9 percent and passed the AGNP certification rate of 100 percent. The Christine E. Lynn College of Nursing at FAU is fully accredited by the Commission on Collegiate Nursing Education (CCNE). For more information, see

About Florida Atlantic University:
Florida Atlantic University, founded in 1961, officially opened in 1964 as the fifth public university in Florida. Today the university looks after more than 30,000 undergraduate and postgraduate students at six locations along the southeast coast of Florida. In recent years, the university has doubled its research spending and outperformed its peers in academic achievement. Through the coexistence of access and excellence, FAU embodies an innovative model in which traditional performance gaps disappear. FAU is named a Hispanic Institution, rated by the US News & World Report as one of the best public universities, and by the Carnegie Foundation for the Advancement of Teaching as an institution with high research activity. Further information can be found at


Problems in Mental Health Care

Research method

Experimental study

Research subject


Article heading

Improvement of behavioral and psychological symptoms and cognitive status of participants with dementia through the use of therapeutic interactive pets

Publication date of the article

October 13, 2021

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