
Study Publication Year: 2019
Evidence Currency: Published more than 5 years ago
Access the complete peer-reviewed article below for detailed methodology, participant characteristics, intervention components, and outcome measures.
Social robots may improve older adults’ well-being by increasing feelings of emotional support and encouraging social interaction. These robots are used as a way to support the mental health needs of older adults through meaningful interactions or sharing information.
A social robot is a device designed to look or act like a human or an animal. There are different types, including animal-like and human-like robots. The most commonly used is PARO, a robotic baby harp seal. Other robots used in aged care settings include the robotic dog AIBO, the humanoid communication robot NAO, a humanoid robot designed with characteristics of a 3-year-old boy, and two health care robots, IrobiQ and Cafero.
Group sessions with robots lasted between 20 and 45 minutes. Individual sessions lasted between 10 and 30 minutes. The overall intervention period ranged from 5 to 12 weeks.

There is limited research directly measuring the impact of social robots on social isolation and loneliness. However, some evidence shows that these robots can reduce anxiety and depression and improve quality of life, which are linked to lower social isolation and loneliness. Based on this relationship, the best estimate is that social robot interventions may lead to a small reduction in social isolation and loneliness among older adults.
Social robot interventions were generally preferred when delivered one-on-one, especially with PARO, as individual sessions were seen as more acceptable and practical than group sessions.
The study included adults aged 55 and older from seven countries: Denmark, Norway, New Zealand, the United States, Australia, Japan, and Spain. Of the 1,042 participants, about 80% had dementia or cognitive impairment. Most participants were women, but no additional demographic details were provided.

On average, social robot interventions are likely to be high-cost.
In addition to the cost of purchasing the robots, there may be expenses related to training staff or hiring external trainers. Evaluations of three social robot brands estimated costs ranging from $3,000 to $19,000 per robot.

Our confidence in the estimate for reducing social isolation and loneliness is very low.
The available studies did not directly measure the impact of social robots on social isolation or loneliness. Instead, they examined outcomes such as anxiety, depression, and quality of life, which are known risk factors for social isolation and loneliness.
This means the findings should be interpreted with caution. More high-quality research is needed to confirm these results.
To implement this intervention effectively, consider the following strategies:
Prefer individual sessions: Offer social robot interventions one-on-one rather than in groups, as personalized interactions are generally more acceptable and practical. A single approach may not work for everyone.
Dose-response effect: Recognize that it is unclear how much exposure is needed to see benefits, and provide the intervention as appropriate.
Augment human-animal interaction: Use social robots as a supplement, not a replacement, for live human-animal interaction. Maintain a balance to respect the rights and autonomy of older adults.
Continuous feedback and adaptation: Set up ways to regularly gather feedback and evaluate the intervention. Assess user satisfaction and adjust the approach based on surveys, interviews, or observation to better meet participants’ needs and preferences.
The review did not discuss equity in how this intervention was implemented. However, the high cost of social robots may limit access in low-resource settings and for low-income individuals.
Tailoring of the intervention was not discussed across PROGRESS+ factors.
The data in the review were not analyzed across PROGRESS+ factors.
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