<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Archiving and Interchange DTD v1.0 20120330//EN" "JATS-archivearticle1.dtd">
<article xmlns:xlink="http://www.w3.org/1999/xlink">
  <front>
    <journal-meta>
      <journal-title-group>
        <journal-title>C.-J. Hsieh, et al., Socially assistive robots for people living with dementia in long-term facilities:
A systematic review and meta-analysis of randomized controlled trials, Gerontology</journal-title>
      </journal-title-group>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="doi">10.3390/healthcare9081067</article-id>
      <title-group>
        <article-title>Enhancing Well-being through Socially Assistive Robot.</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <string-name>Francesca Perillo</string-name>
          <xref ref-type="aff" rid="aff0">0</xref>
        </contrib>
        <aff id="aff0">
          <label>0</label>
          <institution>University of Salerno</institution>
          ,
          <addr-line>Via Giovanni Paolo II, 132, 84084 Fisciano SA</addr-line>
        </aff>
      </contrib-group>
      <pub-date>
        <year>2026</year>
      </pub-date>
      <volume>69</volume>
      <issue>2023</issue>
      <fpage>445</fpage>
      <lpage>456</lpage>
      <abstract>
        <p>This research investigates how social assistive robots can contribute to individual well-being through user-centred design. Through a mixed-methods approach including field studies and participatory design, the research explores the efectiveness of robot-mediated interventions on mental and physical health, user acceptance, and interaction quality. Preliminary results include the deployment of AI-enhanced humanoid systems and wearable-integrated architectures for health monitoring, as well as experimental investigations into how robot interaction modalities influence user perception and engagement. Future work aims to assess the long-term impact of these systems, to inform evidence-based guidelines for safe, ethical, and meaningful deployment of social robots in real-world contexts.</p>
      </abstract>
      <kwd-group>
        <kwd>eol&gt;Human Robot Interaction</kwd>
        <kwd>Human Robot Collaboration</kwd>
        <kwd>social robots</kwd>
        <kwd>social assistive robots</kwd>
        <kwd>Situation Awareness</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <body>
    <sec id="sec-1">
      <title>1. Introduction</title>
      <p>
        The term robot was invented in 1920 by Czech writer Karel Čapek in his play Rossum’s Universal Robots.
Čapek used the word ’robot’ to describe machines created to help humans with their work, a concept
that later became central to modern robotics. From that first invention, the term robot and the entire
ifeld of robotics have faced rapid growth and are now reaching the advanced domain of social robotics
[
        <xref ref-type="bibr" rid="ref1">1</xref>
        ][
        <xref ref-type="bibr" rid="ref2">2</xref>
        ]. This specialization represents a shift from mechanical and automated functions to a more
humancentred approach. social robots can provide emotional, social, and practical support, enhancing people’s
quality of life, using artificial intelligence and sensory systems to create more understanding, adaptive,
and intelligent machines. A subset of social robots, known as socially assistive robots, is specifically
designed to facilitate social interactions rather than physical ones. These robots are particularly relevant
in therapeutic and healthcare contexts, where emotional engagement and personalized interaction are
central to the user’s experience [
        <xref ref-type="bibr" rid="ref3">3</xref>
        ]. A critical driver for efective interaction is Situational Awareness
(SA). Originally formulated by Endsley in 1995 [
        <xref ref-type="bibr" rid="ref4">4</xref>
        ], SA is defined as “the perception of elements in the
environment, the comprehension of their meaning, and the projection of their status in the immediate
future." In human-robot interaction terms, SA refers to the robot’s ability to perceive user actions and
environmental cues to adapt its “behaviour".
      </p>
      <p>
        The field of social robots can be applied to many fields. For children, it represents a promising frontier
in promoting learning and development in young age groups [
        <xref ref-type="bibr" rid="ref5">5</xref>
        ]. By engaging in collaborative or
competitive games, they can take on active roles, fostering interaction and engagement [
        <xref ref-type="bibr" rid="ref6">6</xref>
        ]. It is evident
in the literature that research on the adoption of social assistive robots for children must address several
challenges. These include assessing the impact of robots on children’s learning and well-being through
long-term field studies with standardized evaluation tools [
        <xref ref-type="bibr" rid="ref7">7</xref>
        ].
      </p>
      <p>
        Also, the application on social robot among older adults is equally compelling, particularly given the
growing older people population and their vulnerabilities spanning the dimensions of chronic diseases,
physical limitations, mental disorders, and similar pathology [
        <xref ref-type="bibr" rid="ref8">8</xref>
        ][
        <xref ref-type="bibr" rid="ref9">9</xref>
        ][
        <xref ref-type="bibr" rid="ref10">10</xref>
        ][
        <xref ref-type="bibr" rid="ref11">11</xref>
        ][
        <xref ref-type="bibr" rid="ref12">12</xref>
        ] . The departure of
children from the household for work or personal reasons often leads to increased isolation, which in
turn may exacerbate emotional fragility and contribute to the deterioration of psychological well-being
in older adults [
        <xref ref-type="bibr" rid="ref13">13</xref>
        ][
        <xref ref-type="bibr" rid="ref14">14</xref>
        ][
        <xref ref-type="bibr" rid="ref15">15</xref>
        ][
        <xref ref-type="bibr" rid="ref16">16</xref>
        ][
        <xref ref-type="bibr" rid="ref17">17</xref>
        ].
      </p>
    </sec>
    <sec id="sec-2">
      <title>2. Background literature</title>
      <p>In recent years, a growing body of research has investigated the use of robots to support the mental
health of older adults. Social robots are now being designed not only to provide assistance with daily
tasks, safety, and entertainment, but also to ofer cognitive stimulation and emotional engagement.
A significant example comes from Salichs et al. [ 18], who introduced Mini, a social robot developed
through expert consultation to ensure relevance to the needs of older adults and their caregivers. Along
similar lines, Yvanof-Frenchin et al [ 19] focused on a voice-interactive robot designed for mental health
assessments. This system allowed specialists to create customized question sets in multiple languages
and collect responses from users through a natural interface. While it leveraged tools like Tone Analysis
to support emotional interpretation, the authors emphasized the importance of tailoring content to
the user’s linguistic and medical profile. Hurtado et al [ 20] use the Pepper robot platform to ofer a
broad range of physical and cognitive activities, from memory games to guided exercises, all controlled
via voice or touchscreen. This approach was particularly valuable during the COVID-19 pandemic,
when social isolation had a major psychological impact on the older people. The authors highlighted
challenges related to digital literacy and accessibility. Lin et al. [21] reviewed the role of healthcare
robots in delivering psychosocial care to older adults during this period, emphasizing the benefits of
robot-mediated interventions in mitigating loneliness and stress.</p>
      <p>Building on these earlier eforts, recent research has moved toward more nuanced interaction models.
For instance, Khoo et al. [22] explored how QTrobot could facilitate meaningful conversations about
well-being through short autonomous interactions. Their study revealed a need for improvements in
conversation flow, emotional responsiveness, and topic detection to better engage older adults. In a
larger-scale deployment, Jeong et al. [23] compared three types of robot interactions and found that
a companion-like robot ofers more efective support in building therapeutic alliance and enhancing
users’ enthusiasm than coach or assistant-style robots.</p>
      <p>Other studies have examined specific health outcomes. Hsieh et al. [ 24] found that socially assistive
robots were efective in reducing depression and anxiety in individuals with dementia, although the
improvements were not sustained in follow-up assessments and did not extend to agitation or overall
quality of life. Similarly, Shao et al. [25] highlighted the ability of robots to support exercise routines,
monitor health metrics, and provide cognitive stimulation tailored to users’ profiles.</p>
      <p>Taken together, these studies demonstrate a growing consensus around the potential of interactive
robots to enhance both physical and mental health in older adults. However, they also highlight the
need for more inclusive, long-term, and ethically grounded research to ensure these technologies are
accessible, efective, and safe for diverse users.</p>
    </sec>
    <sec id="sec-3">
      <title>3. Research Motivations</title>
      <p>The objectives of the research focus on the use of social assistive robots to enhance the well-being
and quality of life of individuals. Specifically, it aims to explore how these technologies can provide
physical and emotional support, facilitate social interaction, and assist with daily activities. Mental
healthcare needs to consider the broad range of users, such as children, adults, and the aged, who have
their unique psychological behaviour, communication patterns, and requirements. This heterogeneity
requires adaptive systems to understand context and personal preference to provide meaningful and
relevant interventions.</p>
      <p>The current literature on social robots highlights several significant gaps. First, there is a lack
of long-term studies that assess the sustainability and ongoing impacts of social robots. Moreover,
successfully implementing these technologies requires a strong interdisciplinary collaboration between
healthcare professionals and computer scientists, an area that remains not fully explored. Ethical
concerns, particularly around privacy and the handling of sensitive data, are also prominent, with a
clear need for standardized global guidelines. Furthermore, while user-centred design is identified as
essential, there is a need for more empirical testing to optimize robot interaction with diferent users.
The social and psychological efects on individuals need further investigation to fully understand how
these technologies can help. The exploration of how to achieve inclusive design for social robots has
not been thoroughly addressed. Questions remain regarding whether one-on-one interactions with a
robot produce better outcomes compared to interactions involving multiple people or even multiple
robots. Additionally, an in-depth study is needed to understand how and why familiarity influences
interactions with robots, focusing particularly on the motivations behind this influence. Furthermore,
there is a lack of research demonstrating whether a social robot can be fully aware of its surroundings
and how this awareness impacts its interactions with humans.</p>
    </sec>
    <sec id="sec-4">
      <title>4. Objectives and Research Questions</title>
      <p>The research questions outlined below were selected to address the role of social robots in enhancing
well-being, understanding user interactions, and establishing ethical standards. Each main research
question is composed of more specific sub-questions: this hierarchical structure allows for a more
focused and detailed exploration of each topic.
1 What measurable impacts do social robots have on individuals’ well-being?
1.1 How do social robots improve physical well-being of individuals?
1.2 How do social robots improve mental well-being of individuals?
1.3 What could be the risks of long-term use of social robots?
2 How do diferent populations’ backgrounds influence social robots’ acceptance and/or
efectiveness?
2.1 How does varying technological familiarity afect how individuals interact with social
robots?
2.2 How can social robots be designed with inclusive programming to reduce the impact of
technological disparities?
2.3 Does individual interaction with a social robot enhance performance and user satisfaction
compared to group interactions with a social robot, and what are the potential benefits of
one-to-one versus group dynamics in human-robot interactions?
3 How does situational awareness in social robots enhance human-robot interaction, and to what
extent does it contribute to improved user engagement, comfort, and overall well-being?
4 What ethical guidelines should be formulated to manage the development and implementation of
social robots in private and healthcare settings to ensure user safety and dignity?
1 focuses on the potential impacts of social robots on individuals’ well-being. This main question
is broken down into sub-questions: 1.1 and 1.2 investigate how social robots enhance physical
and mental well-being, respectively. These distinctions are crucial because they allow for targeted
assessments of the robots’ efects on diferent dimensions of health, with the possibility to explore
whether and how these efects difer. Furthermore, 1.3 considers potential negative efects,
acknowledging that while social robots can be beneficial, there may be thresholds beyond which their use
could be inefective. This balanced perspective is critical in understanding the comprehensive role of
social robots in health contexts. 2 addresses the acceptance and efectiveness of social robots across
diferent populations. 2 aim is to understand if user backgrounds, experiences, and technological
familiarity can influence human-robot interactions. The sub-questions explore several dimensions of
this variability in depth: 2.1 explores how difering levels of technological familiarity impact user
interactions, which is vital for designing user-friendly robots. 2.2 emphasizes the importance of
inclusive programming, promoting the design of robots that can adapt to the diverse needs of users,
thereby reducing technological disparities. In the end, 2.3 investigates the diferences among
individual and group interactions with a robot. The objective is to examine how these contexts afect
the performance and the satisfaction of the interaction. 3 examines situational awareness in social
robots, specifically exploring whether interactions with robots that can perceive and respond to their
environment are more efective than those with robots lacking this capability. Finally, 4 emphasizes
the need for ethical guidelines in the development and implementation of social robots, particularly in
settings like healthcare. This question addresses the ethical implications of using robots with people.</p>
    </sec>
    <sec id="sec-5">
      <title>5. Preliminary Results</title>
      <p>This section presents the results of the research activity conducted during the initial phase of the
doctoral program. Several publications have contributed to the development of the research trajectory.</p>
      <p>The study “Enhancing older people Health Monitoring: Achieving Autonomous and Secure Living through
the Integration of Artificial Intelligence, Autonomous Robots, and Sensors" [ 26] investigates the use of
robots in older people care, focusing on the integration of robotics, sensors, and Artificial Intelligence
(AI). The research introduced a four-actor system involving a stationary humanoid robot, older people,
medical personnel, and caregivers, enabling continuous monitoring of physical and emotional
wellbeing through vital sign sensors. This approach aims to enhance home-based care, reducing reliance
on institutionalization. Key results include the development of a humanoid robot designed for close
interaction with older people, capable of monitoring vital signs and emotional states while assisting
with daily activities. A machine learning model, based on the Modified Early Warning Score (MEWS),
was also created to predict health status. The findings highlighted the benefits of using IoT technology
for continuous health monitoring, emotional support, and personalized care, ultimately promoting the
independence of older people and reducing hospital admissions. Looking ahead, the research emphasizes
the need for a longitudinal study to evaluate system acceptance and usability among older people users
and caregivers. There is potential to improve the medication intake process and vital sign measurement
using advanced technologies, while expanding the monitoring framework to assess multiple older
individuals within a household. Additionally, the introduction of a prioritization system for health
alerts could enhance response times in critical situations. Overall, the study supports a comprehensive
and integrated approach to older care that fosters independence and proactive health management.</p>
      <p>Building upon this foundation, the study “Enhanced Home Elderly Care: Integrating Fitbit Technology
within Android Studio Evolutionary Prototypes" [27] advances a self-care architecture that emphasizes
passive health monitoring and cognitive engagement through wearable technology. The system employs
Fitbit Versa 4 to collect physiological data (e.g., heart rate, sleep, blood oxygen) and supports real-time
anomaly detection. It incorporates a mobile application ofering role-specific interfaces for older people
users, caregivers, and medical personnel to enhance data accessibility and interaction. Furthermore, the
architecture includes a memory game designed to counteract cognitive decline, encouraging mental
stimulation. The deployment of evolutionary prototypes enables iterative refinement based on user
feedback. This work responds directly to literature suggesting that outputs should be tailored to
stakeholder roles [28], thereby improving system usability.</p>
      <p>While the first studies primarily address physical health, the study “Social robot in service of the
cognitive therapy of elderly people: Exploring robot acceptance in a real-world scenario" [29] shifts the focus
exclusively to cognitive well-being. A key aspect of the first paper in this field of research is the active
involvement of doctors, ensuring a user-centred approach. Furthermore, this paper highlights a field
experiment that engages the stakeholders of the project, emphasizing the importance of collaboration
in addressing the mental well-being of older people.</p>
      <p>Ongoing research is currently exploring the role of robot appearance by investigating how diferent
facial configurations of a social robot could influence user perception. Another active line of
investigation involves the use of telepresence robots to examine how users interact socially with the robotic
embodiment. The goal is to better understand the relational and interactional dynamics that emerge,
which may inform future approaches to designing and deploying socially assistive robots. These ongoing
studies aim to examine how diferent robotic modalities can contribute to the development of socially
meaningful interactions.</p>
    </sec>
    <sec id="sec-6">
      <title>Declaration on Generative AI</title>
      <p>During the preparation of this work, the author(s) used ChatGPT, Grammarly in order to: Grammar
and spelling check, Paraphrase and reword. After using this tool/service, the author(s) reviewed and
edited the content as needed and take(s) full responsibility for the publication’s content.</p>
    </sec>
  </body>
  <back>
    <ref-list>
      <ref id="ref1">
        <mixed-citation>
          [1]
          <string-name>
            <given-names>A.</given-names>
            <surname>Birk</surname>
          </string-name>
          ,
          <article-title>What is robotics? an interdisciplinary field is getting even more diverse</article-title>
          ,
          <source>IEEE Robotics &amp; Automation Magazine</source>
          <volume>18</volume>
          (
          <year>2011</year>
          )
          <fpage>94</fpage>
          -
          <lpage>95</lpage>
          . doi:
          <volume>10</volume>
          .1109/MRA.
          <year>2011</year>
          .
          <volume>943235</volume>
          .
        </mixed-citation>
      </ref>
      <ref id="ref2">
        <mixed-citation>
          [2]
          <string-name>
            <given-names>C.</given-names>
            <surname>Breazeal</surname>
          </string-name>
          , Designing sociable robots, MIT press,
          <year>2004</year>
          .
        </mixed-citation>
      </ref>
      <ref id="ref3">
        <mixed-citation>
          [3]
          <string-name>
            <given-names>J.</given-names>
            <surname>Fan</surname>
          </string-name>
          ,
          <string-name>
            <given-names>L. C.</given-names>
            <surname>Mion</surname>
          </string-name>
          ,
          <string-name>
            <given-names>L.</given-names>
            <surname>Beuscher</surname>
          </string-name>
          ,
          <string-name>
            <given-names>A.</given-names>
            <surname>Ullal</surname>
          </string-name>
          ,
          <string-name>
            <given-names>P. A.</given-names>
            <surname>Newhouse</surname>
          </string-name>
          ,
          <string-name>
            <given-names>N.</given-names>
            <surname>Sarkar</surname>
          </string-name>
          ,
          <article-title>Sar-connect: A socially assistive robotic system to support activity and social engagement of older adults</article-title>
          ,
          <source>IEEE Transactions on Robotics</source>
          <volume>38</volume>
          (
          <year>2022</year>
          )
          <fpage>1250</fpage>
          -
          <lpage>1269</lpage>
          . doi:
          <volume>10</volume>
          .1109/TRO.
          <year>2021</year>
          .
          <volume>3092162</volume>
          .
        </mixed-citation>
      </ref>
      <ref id="ref4">
        <mixed-citation>
          [4]
          <string-name>
            <given-names>M. R.</given-names>
            <surname>Endsley</surname>
          </string-name>
          ,
          <article-title>Toward a theory of situation awareness in dynamic systems</article-title>
          ,
          <source>Human Factors</source>
          <volume>37</volume>
          (
          <year>1995</year>
          )
          <fpage>32</fpage>
          -
          <lpage>64</lpage>
          . doi:
          <volume>10</volume>
          .1518/001872095779049543.
        </mixed-citation>
      </ref>
      <ref id="ref5">
        <mixed-citation>
          [5]
          <string-name>
            <given-names>K. P.</given-names>
            <surname>Patino</surname>
          </string-name>
          ,
          <article-title>Educational robotics, a tool for teaching and learning sciences and technologies</article-title>
          .,
          <source>Education in the Knowledge Society</source>
          <volume>13</volume>
          (
          <year>2012</year>
          )
          <fpage>74</fpage>
          -
          <lpage>90</lpage>
          . doi:
          <volume>10</volume>
          .14201/EKS.9000.
        </mixed-citation>
      </ref>
      <ref id="ref6">
        <mixed-citation>
          [6]
          <string-name>
            <given-names>M.</given-names>
            <surname>Petre</surname>
          </string-name>
          ,
          <article-title>Using robotics to motivate 'back door' learning,</article-title>
          <source>Education and Information Technologies</source>
          <volume>9</volume>
          (
          <year>2004</year>
          )
          <fpage>147</fpage>
          -
          <lpage>158</lpage>
          . doi:
          <volume>10</volume>
          .1023/B:EAIT.
          <volume>0000027927</volume>
          .78380.60.
        </mixed-citation>
      </ref>
      <ref id="ref7">
        <mixed-citation>
          [7]
          <string-name>
            <given-names>R.</given-names>
            <surname>Grimaldi</surname>
          </string-name>
          ,
          <article-title>I social robot, cosa sono, come utilizzarli nel settore dell'educazione, 2023</article-title>
          . URL: https://www.ai4business.
          <article-title>it/intelligenza-artificiale/ i-social-robot-cosa-sono-come-utilizzarli-nel-settore-dellestruzione/</article-title>
          , accessed:
          <fpage>2024</fpage>
          -10-10.
        </mixed-citation>
      </ref>
      <ref id="ref8">
        <mixed-citation>
          [8]
          <string-name>
            <given-names>D.</given-names>
            <surname>Kaur</surname>
          </string-name>
          , et al.,
          <article-title>Nutritional interventions for elderly and considerations for the development of geriatric foods</article-title>
          ,
          <source>Current Aging Science</source>
          <volume>12</volume>
          (
          <year>2019</year>
          )
          <fpage>15</fpage>
          -
          <lpage>27</lpage>
          .
        </mixed-citation>
      </ref>
      <ref id="ref9">
        <mixed-citation>
          [9]
          <string-name>
            <given-names>P.</given-names>
            <surname>Khosravi</surname>
          </string-name>
          ,
          <article-title>Investigating the efectiveness of technologies applied to assist seniors: A systematic literature review</article-title>
          ,
          <source>International Journal of Medical Informatics</source>
          <volume>85</volume>
          (
          <year>2016</year>
          )
          <fpage>17</fpage>
          -
          <lpage>26</lpage>
          . doi:
          <volume>10</volume>
          .1016/j. ijmedinf.
          <year>2015</year>
          .
          <volume>05</volume>
          .014.
        </mixed-citation>
      </ref>
      <ref id="ref10">
        <mixed-citation>
          [10]
          <string-name>
            <given-names>Z.</given-names>
            <surname>Liu</surname>
          </string-name>
          ,
          <article-title>Dietary micronutrients intake status among chinese elderly people living at home: Data from cnnhs 2010-2012</article-title>
          , Nutrients
          <volume>11</volume>
          (
          <year>2019</year>
          ). doi:
          <volume>10</volume>
          .3390/nu11081787.
        </mixed-citation>
      </ref>
      <ref id="ref11">
        <mixed-citation>
          [11]
          <string-name>
            <given-names>L.</given-names>
            <surname>Pu</surname>
          </string-name>
          ,
          <article-title>The efectiveness of social robots for older adults: A systematic review and meta-analysis of randomized controlled studies</article-title>
          ,
          <source>The Gerontologist</source>
          <volume>59</volume>
          (
          <year>2018</year>
          )
          <fpage>e37</fpage>
          -
          <lpage>e51</lpage>
          . doi:
          <volume>10</volume>
          .1093/geront/ gny046.
        </mixed-citation>
      </ref>
      <ref id="ref12">
        <mixed-citation>
          [12]
          <string-name>
            <given-names>H.</given-names>
            <surname>Wu</surname>
          </string-name>
          ,
          <article-title>Informal care and health behaviors among elderly people with chronic diseases</article-title>
          ,
          <source>Journal of Health, Population, and Nutrition</source>
          <volume>36</volume>
          (
          <year>2017</year>
          ). doi:
          <volume>10</volume>
          .1186/s41043-017-0117-x.
        </mixed-citation>
      </ref>
      <ref id="ref13">
        <mixed-citation>
          [13]
          <string-name>
            <given-names>J.</given-names>
            <surname>Abdi</surname>
          </string-name>
          ,
          <article-title>Scoping review on the use of socially assistive robot technology in elderly care</article-title>
          ,
          <source>BMJ Open 8</source>
          (
          <year>2018</year>
          ). doi:
          <volume>10</volume>
          .1136/bmjopen-2017-018815.
        </mixed-citation>
      </ref>
      <ref id="ref14">
        <mixed-citation>
          [14]
          <string-name>
            <given-names>J.</given-names>
            <surname>Brodsky</surname>
          </string-name>
          ,
          <string-name>
            <given-names>J.</given-names>
            <surname>Habib</surname>
          </string-name>
          ,
          <string-name>
            <given-names>M. J.</given-names>
            <surname>Hirschfeld</surname>
          </string-name>
          ,
          <article-title>Key policy issues in long-term care</article-title>
          ,
          <year>2003</year>
          .
        </mixed-citation>
      </ref>
      <ref id="ref15">
        <mixed-citation>
          [15]
          <string-name>
            <given-names>G.</given-names>
            <surname>Cheung</surname>
          </string-name>
          ,
          <article-title>Financial dificulty and biopsychosocial predictors of loneliness: A cross-sectional study of community dwelling older adults</article-title>
          ,
          <source>Archives of Gerontology and Geriatrics</source>
          <volume>85</volume>
          (
          <year>2019</year>
          )
          <article-title>103935</article-title>
          . doi:
          <volume>10</volume>
          .1016/j.archger.
          <year>2019</year>
          .
          <volume>103935</volume>
          .
        </mixed-citation>
      </ref>
      <ref id="ref16">
        <mixed-citation>
          [16]
          <string-name>
            <given-names>L.</given-names>
            <surname>Pu</surname>
          </string-name>
          ,
          <article-title>The efectiveness of social robots for older adults: A systematic review and meta analysis of randomized controlled studies</article-title>
          ,
          <source>The Gerontologist</source>
          <volume>59</volume>
          (
          <year>2018</year>
          )
          <fpage>e37</fpage>
          -
          <lpage>e51</lpage>
          . doi:
          <volume>10</volume>
          .1093/geront/ gny046.
        </mixed-citation>
      </ref>
      <ref id="ref17">
        <mixed-citation>
          [17]
          <string-name>
            <given-names>L.</given-names>
            <surname>Sinnema</surname>
          </string-name>
          ,
          <article-title>The attitude of elderly and young adults towards a humanoid robot as a facilitator for social interaction</article-title>
          ,
          <source>in: Proceedings of the International Conference on Social Robotics</source>
          ,
          <year>2019</year>
          , pp.
          <fpage>24</fpage>
          -
          <lpage>33</lpage>
          . doi:
          <volume>10</volume>
          .1007/978-3-
          <fpage>030</fpage>
          -35888-
          <issue>4</issue>
          _
          <fpage>3</fpage>
          .
        </mixed-citation>
      </ref>
    </ref-list>
  </back>
</article>