Evaluating initial usability of a hand augmentation device across a large and diverse sample.

Area of Science:

• Human-computer interaction
• Robotics
• Wearable technology

Background:

• Advancements in motor augmentation and human-machine interaction require seamless integration with user capabilities.
• Individual differences in age, form, and abilities necessitate inclusive design standards for technology development.
• Public engagement events are crucial for co-developing accessible technologies through user discourse.

Purpose of the Study:

• To assess the usability and wearability of the Third Thumb, a hand augmentation device, across a diverse demographic.
• To evaluate the device's performance and user adaptation in relation to factors like gender, handedness, and age.
• To gather evidence from large-scale public testing to inform the development of inclusive wearable robotic technology.

Main Methods:

• Exhibited the Third Thumb at a public engagement event.
• Tested 596 general public participants (ages 3-96) focusing on wearability, control, and object manipulation.
• Analyzed performance data across diversity factors including gender, handedness, and age.

Main Results:

• The inclusive design was successful in 99.3% of participants.
• 98% of participants successfully manipulated objects within the first minute of use.
• Performance varied by age, with younger children and older adults showing some challenges, though gender and handedness had no significant impact.

Conclusions:

• The Third Thumb demonstrates initial usability across a broad demographic, highlighting the potential of inclusive design in motor augmentation.
• Public engagement testing provides valuable data for refining wearable robotic technology for diverse users.
• Further research is needed to address age-related performance differences for optimal user experience.