Vibrotactile threshold and pulse polarity

Supracutaneous vibrotactile perception threshold at various non-glabrous body loci.

Researchers at the University of Nebraska-Lincoln are currently designing a wearable/portable neutron detector. As an alerting mechanism, the device will transmit vibration to the wearer's skin in the presence of hazardous levels of neutron radiation. The present study was designed to help in the ergonomically correct body placement of the neutron detection device while providing numerical valu...

Progress in vibrotactile threshold evaluation techniques: a review.

Vibrotactile threshold (VT) testing has been used for nearly a century to investigate activation of human somatosensory pathways. This use of vibrotactile stimuli provides a versatile tool for detecting peripheral neuropathies, and has been broadly used for investigation of carpal tunnel syndrome. New applications include investigation of drug-induced neuropathies and diabetes-related neuropath...

Effect of individual finger skin temperature on vibrotactile perception threshold.

OBJECTIVES In healthy people, the vibrotactile perception threshold (VPT) at fingertips depends on a given measurement method and on individual characteristics such as age, gender and finger skin temperature. The aim of the study was to compare the VPT values in 2 groups of healthy subjects with different finger skin temperature. MATERIALS AND METHODS The study group comprised 56 males and 76...

Vibrotactile Score for Designing Vibrotactile Patterns Vibrotactile Score for Designing Vibrotactile Patterns

Vibrotactile threshold for hairy skin and its transformation into equivalent bone-conduction loss for the mastoid.

Vibrotactile thresholds for the glabrous skin of the hand and for the hairy skin of the arm are investigated as a function of frequency in the range from 40 to 2 000 Hz, using a heavy vibrator. These thresholds are expressed as equivalent bone-conduction loss and compared with vibrotactile thresholds determined with bone vibrators on the arm and mastoid for normally hearing and severely hearing...