Overview

The following section focuses on researched concepts that provided a basis for our project, accompanied by relevant literature. Using robots as a tool and companion for patients has been an area of research for a significant time. This project aims to focus on developing such a robot for patients with dementia (PwD) while keeping in mind objectives such as keeping the patient healthy and improving their quality of life. In this section we analyze the previous research done with robots in association with people with dementia, analyze the role of music, and finally assess activities performed using robots in order to gain inspiration and momentum for our own idea. 

Dementia and Robots
Robots therapy and engagement for people with dementia is a research field with many diverse applications and interpretations. As we know robots can range from virtual to humaniod to animal like, with all having their advantages and disadvantages. One such study takes a deeper look at the effectiveness of a robot dog called AIBO in occupational therapy with demented patients and compared its effectiveness with a toy dog [1]. Experimentation and results of the study showed that although both versions, the robot and the toy dog could trigger some kind of memory and positive emotion, these seemed to be greater for when interacting with AIBO. Interactions with AIBO mostly consisted of caring for and interacting with the robot, and hence the final conclusion of the study showed that AIBO was clearly an effective rehabilitation tool in the treatment of severely demented patients.

PARO is another interactive robot designed in Japan with five types of sensors: light, tactile, posture, temperature, and audio. Kang et al. utilized PARO to conduct studies in various countries and settings, such as nursing homes, family homes, and day-care centers to analyze the effectiveness of PARO in relation to people with dementia. Interactions with the PARO robot were both individual and group setting, with a maximum of 15 participants. Final results demonstrated that interventions with PARO could be beneficial for improving quality of life, positive emotions, and feelings resulting from social interaction [2]. Additionally, the study also concluded that interactions with PARO can reduce feelings of depression and anxiety in people with dementia. Using these studies as our basis, we conclude that interactions with robots can indeed have a positive effect on people with dementia. 

Activity
In the paper "Perspectives of People with Dementia About Meaningful Activities: A Synthesis", the authors studied the meanings of engagement in daily activities from the perspective of people with dementia [3]. In their study, they found that PwDs want to engage in personally meaningful activities that can connect with others.
Engagement in personally valued activities is an important aspect for older people. PwDs are often neglected from this. They often lack the opportunity to engage in activities they like, which can result from decreased cognitive abilities, behavioral symptoms, etc.
Therefore, we want to help PwDs to do those activities that they like in our design. Sometimes, PwDs want to engage in activities, but they cannot remember the steps due to decreased memory. Pepper can break down a complex activity into small steps so that PwDs can do it easily.

Music
Researchers pointed out that music with a stronger personal meaning can enhance the social, cognitive experience of PwDs [4]. But we did not implement music personalization in our design because we focus more on the activity breakdown module. However, we did try to incorporate music in Pepper so that it can be more helpful and personal. Before each activity, Pepper would play a small piece of music to get the attention of the PwD.

TDP
Team Design Patterns is a general repeatable solution to a reoccurring problem in software design. Researchers pointed out that the TDP language is suitable for the unambiguous description and communication of design problems and their solutions [5]. They showed that TDPs can be created and applied in the design process. Therefore, we designed our TDPs, including a general reminder design pattern and an activity breakdown design pattern.

[1] Tamura, T., Yonemitsu, S., Itoh, A., Oikawa, D., Kawakami, A., Higashi, Y., ... & Nakajima, K. (2004). Is an entertainment robot useful in the care of elderly people with severe dementia?. The Journals of Gerontology Series A: Biological Sciences and Medical Sciences, 59(1), M83-M85. https://sci-hub.mksa.top/10.1093/gerona/59.1.M83
[2] Kang, H. S., Makimoto, K., Konno, R., & Koh, I. S. (2020). Review of outcome measures in PARO robot intervention studies for dementia care. Geriatric Nursing, 41(3), 207-214. https://sci-hub.hkvisa.net/10.1016/j.gerinurse.2019.09.003
[3] Han, A., Radel, J., McDowd, J. M., & Sabata, D. (2016). Perspectives of people with dementia about meaningful activities: a synthesis. American Journal of Alzheimer's Disease & Other Dementias®, 31(2), 115-123. https://journals.sagepub.com/doi/full/10.1177/1533317515598857
[4] Peeters, M. M., Harbers, M., & Neerincx, M. A. (2016). Designing a personal music assistant that enhances the social, cognitive, and affective experiences of people with dementia. Computers in Human Behavior, 63, 727-737. https://www.sciencedirect.com/science/article/pii/S0747563216304319?casa_token=6AeK_ClUscYAAAAA:YFjAd3zvdl6ZlVaZIw5Vl9Fhxduc7FAE12mKyOxHde1w347lABJMVCAYM-Cl5hanRZgnStKi7I0
[5] van Stijn, J. J., Neerincx, M. A., ten Teije, A., & Vethman, S. (2021, April). Team design patterns for moral decisions in hybrid intelligent systems: A case study of bias mitigation. In 2021 AAAI Spring Symposium on Combining Machine Learning and Knowledge Engineering, AAAI-MAKE 2021 (pp. 1-12). CEUR-WS. http://ceur-ws.org/Vol-2846/paper15.pdf