## 3 Results
### Emerging Opportunities and Limitations/Barriers  
SASRs have the potential to improve emotional well-being and support various healthcare applications, such as reducing loneliness and depression in older adults, aiding sleep disorders, and assisting in therapy for autism and dementia. However, there are still barriers and limitations to overcome in design optimization and clinical integration. Further research is needed to validate their effectiveness and establish best practices. Table 5 below highlights the opportunities and limitations encountered with SASRs in healthcare. \begin{table}
\begin{tabular}{p{113.8 pt} p{113.8 pt} p{113.8 pt} p{113.8 pt}} \hline \hline
**Study** & \multicolumn{2}{c}{**Opportunities**} & \multicolumn{2}{c}{**Limitations/Barriers**} \\ \hline \multirow{4}{*}{[11]} & - & SASRs show great potential in reducing both depression and loneliness in older adults, which is critical for improving mental health in long-term care settings. Their use in group or personalized care and emotional support. & - & Further research is needed to determine which type of activities (group-based vs. individual-based) work best. The interaction dynamics and the robot’s role in group settings require more exploration. & - & Further research is needed to determine which type of activities (group-based vs. individual-based) work best. The interaction dynamics and the robot’s role in group settings require more exploration. & - \\ \hline \multirow{4}{*}{[12]} & - & SASRs may offer a complementary or even alternative option to traditional sleep treatments, making them a valuable tool for managing sleep disorders. They could help individuals fall asleep or maintain a steady sleep pattern. & - & While some robots showed positive effects on sleep quality, some results were inconsistent. There is a need for more targeted robot designs specifically optimized for sleep improvement, along with better clinical trials. & - & Designing robots that can express empathy across various settings and interactions remains difficult. The challenge lies in creating robots that can adapt to the nuances of human emotions in real-time interactions. & - & Robots are not yet ready for full therapeutic use in autism treatment. Many robots are currently better suited for entertainment and basic interaction, lacking the complexity required for advanced therapeutic applications. \\ \hline \multirow{4}{*}{[14]} & - & Robots have been shown to effectively reduce anxiety and distress in children, particularly in medical environments like hospitals. These robots could be used as tools for emotional support during treatments or hospital stays, providing distraction and comfort. & - & While there  
\begin{table}
\begin{tabular}{c c c c} \hline \hline
**Study** & **Opportunities** & \multicolumn{2}{c}{**Limitations/Barriers**} \\ \hline
**-** & \begin{tabular}{c} SASRs hold promise for engaging individuals \\ with dementia, promoting emotional \\ well-being, and potentially improving \\ cognitive function. Their use could lead to \\ more personalized care and better interaction \\ for those with memory impairments. \\ \end{tabular}  & - & Outcomes across studies are highly variable due to differences in participant characteristics, robot designs, and the specific interventions used. The lack of standardized measures and diverse patient populations complicates interpreting the results. \\ \hline
**-** & \begin{tabular}{c} Facial anthropomorphic trustworthiness can \\ significantly enhance the design of SASRs by \\ ensuring that facial expressions and features \\ elicit trust and positive emotional responses. A \\ robot’s face can influence how people interact \\ with and accept the robot in various contexts. \\ \end{tabular}  & - & Despite the promising findings, more research is needed to identify which specific facial features and emotional expressions contribute most to establishing trust. There is still a lack of standardized design principles based on human facial perception. \\ \hline
**-** &