Cognitive and Physical Activities Impair Perception of Smartphone Vibrations
Vibration feedback is common in everyday devices, from virtual reality systems to smartphones. However, cognitive and physical activities may impede our ability to sense vibrations from devices. In this study, we develop and characterize a smartphone platform to investigate how a shape-memory task (...
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Main Authors | , , , , , , |
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Format | Journal Article |
Language | English |
Published |
11.05.2023
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Subjects | |
Online Access | Get full text |
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Summary: | Vibration feedback is common in everyday devices, from virtual reality
systems to smartphones. However, cognitive and physical activities may impede
our ability to sense vibrations from devices. In this study, we develop and
characterize a smartphone platform to investigate how a shape-memory task
(cognitive activity) and walking (physical activity) impair human perception of
smartphone vibrations. We measured how Apple's Core Haptics Framework
parameters can be used for haptics research, namely how hapticIntensity
modulates amplitudes of 230 Hz vibrations. A 23-person user study found that
physical (p<0.001) and cognitive (p=0.004) activity increase vibration
perception thresholds. Cognitive activity also increases vibration response
time (p<0.001). This work also introduces a smartphone platform that can be
used for out-of-lab vibration perception testing. Researchers can use our
smartphone platform and results to design better haptic devices for diverse,
unique populations. |
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DOI: | 10.48550/arxiv.2305.06556 |