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Version 3.1 by Liza Wensink on 2023/04/09 12:10
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1 **Design problem:** The reason the HR comes up to the PwD is not yet known to the PwD. Also the PwD might not want to go for a walk.
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3 **Design solution:** In this design pattern, the robot gives some initial explanations for why the PwD should join him outside. It also responds to the response of the PwD to hopefully result in a successful persuasion. If after 4 persuasion attempts the PwD is still not motivated to go outside, the HR gives up for this time.
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5 **Use when: **When a PwD is determined to have a too low activity level over the past 3 days.
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7 **Design rationale: **To do: find paper for motivation.
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9 **Example:  **In our use case (i.e. "motivation"  as specified by group 4 of the SCE-course in 2023), Pepper explains using speech and images, the goal of the activity, which is to go for a short walk together with the PwD. The speech rate is slightly lower than average considering the age and cognitive abilities of the participants. Pepper uses explanations based on the ultimate goal (i.e. 'you will be healthier') or based on emotion (i.e. "it will make me happy") to explain the reason behind the activity. Pepper confirms if the PwD wants to join him outside, and if not, provides another different explanation. For detail on the parameter setting, see the Table below (WIP).
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11 To do: read literature about appearance of HR
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13 |=(% colspan="2" %)Parameter|=Choice|=Rationale
14 |(% colspan="2" %)Gesture Openness|Open|Makes the interaction less formal so that the PwD can familiarize themself better with Pepper.
15 |(% colspan="2" %)Gaze Diversion|Directed|Pepper will look at the PwD in question so they will feel personally approached.
16 |(% colspan="2" %)Proxemic Closeness|Close|Close to make a more personal interaction.
17 |(% rowspan="3" %)Voice
18 |(% colspan="1" %)Pitch|Middle|A high pitch makes Pepper sound friendly but it should not be too high otherwise the PwD might not be able to hear Pepper well.
19 |(% colspan="1" %)Speed|Slower than average|Since the PwD are old, a low speech rate will help them understand Pepper better but it should not be too sow otherwise, they will be bored.
20 |(% colspan="1" %)Prosody|Strong|The prosody of the voice should be strong so that Pepper can articulate better.
21 |(% colspan="2" %)Speech Acts|Informal|An informal tone makes the interaction more comfortable for the participants.
22 |(% colspan="2" %)Eye Color|White|The eyes should be white so as to not distract the PwD.