Development of a new haptic perception instrument: a pilot study.

Area of Science:

• Neuroscience
• Biomechanics
• Rehabilitation Science

Background:

• Existing hand sensory tests lack specificity for physiological receptors and fail to account for developmental or pathological variations.
• Assessing haptic perception, the interplay of sensory and motor systems during manual exploration, is crucial for understanding hand function.

Purpose of the Study:

• To develop and introduce a novel instrument, the Hand Haptic Perception Instrument (HHPI), for evaluating haptic perception.
• To create a standardized set of tests with precise timing and scoring for assessing sensorimotor performance in hand exploration.

Main Methods:

• The development involved iterative group meetings for test and manual conception, alongside materials testing.
• The test manual underwent rigorous review by 30 experts across three distinct stages.

Main Results:

• The Hand Haptic Perception Instrument (HHPI) measures performance across six domains: depression, elevation, texture, compressibility, weight (barognosis), and form perception.
• Each domain utilizes specific materials, and scores range from 0 (worst) to 57 (best).

Conclusions:

• The methodological approach successfully yielded six distinct domains and assessment instructions for haptic perception.
• This initial version of the HHPI is a pilot model, with future studies planned to establish reliability and normative ranges.