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Wiki source code of IDP: Motivate the PwD

Version 5.1 by Varun Singh on 2023/04/05 19:30
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Varun Singh 2.1 1 **Design problem: **The PwD would like to paint but is not as active as it used to be because of the dementia condition. The Pepper robot in this case helps them to perform the activity and provides meaningful guidance and suggestions while they are doing the activity.
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Varun Singh 2.1 3 **Design solution:** In this design pattern, the robot first instantiates the interaction by first asking the PwD whether they want to perform the painting activity and then at certain milestones of the painting. The suggestions would not be annoying or too frequent so as to not cause annoyance but at proper intervals. The robot's tone remains friendly and uses open gestures to make the interaction less formal.
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Varun Singh 2.1 5 **Use when: **After the introduction but before the start of an activity, when PwD is unfamiliar with the flow of the interaction.
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7 **Design rationale: **This design pattern follows the Didactic Communication pattern introduced by Khan et al., where there is a transmission of information from the robot to the human agent. By explaining the activity, participants will know what to expect and how they can participate in the activity.
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Varun Singh 3.1 9 **Example: **For our use case, Pepper triggers the activity using speech and hand gestures, which is to help the PwD paint. The speech rate is slightly lower than average considering the age and cognitive abilities of the participants. Pepper then explains the steps involved such as the style of the painting and the topic. Appropriate suggestions and instructions are given at proper intervals. Pepper confirms that the explanation is understood and if not, repeats the explanation. For detail on the parameter setting, see the Table below.
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12 |=(% colspan="2" %)Parameter|=Choice|=Rationale
13 |(% colspan="2" %)Gesture Openness|Open|Makes the interaction less formal so that the PwD can familiarize themself better with Pepper.
14 |(% colspan="2" %)Proxemic Closeness|(((
15 Average
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Varun Singh 4.1 17 (close)
18 )))|Kept close to the PwD.
Ruud de Jong 1.1 19 |(% rowspan="3" %)Voice
20 |(% 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.
Varun Singh 4.1 21 |(% 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 slow otherwise, they will be bored.
Ruud de Jong 1.1 22 |(% colspan="1" %)Prosody|Strong|The prosody of the voice should be strong so that Pepper can articulate better.
23 |(% colspan="2" %)Speech Acts|Informal|An informal tone makes the interaction more comfortable for the participants.
24 |(% colspan="2" %)Eye Color|White|The eyes should be white so as to not distract the PwD.