Human Pressure Perception Values for Constant and Moving One- and Two-Point Discrimination

Estudo prospectivo da sensibilidade tátil em mãos de uma população brasileira usando pressure-specified sensory device

“…However, in our study on pressure sensitivity, we did not find any changes related to aging. This result is compatible with the fact that Merkel cells (which have a large influence on pressure sensitivity) do not alter with age (7) . Identifying one or two stimuli probably depends on skin innervation and also on the innervation of the encephalic cortex.…”

“…The sensitivity thresholds of the present study were higher than those obtained by Dellon et al (7) in their study on an American population, which is compatible with the fact that tactile sensitivity varies between different populations, as demonstrated in examinations using Semmes-Weinstein monofilaments (8,9). It has to be borne in mind that Dellon et al (7) used a distance of 3 mm between the points of the device in the two-point tests.…”

“…It has to be borne in mind that Dellon et al (7) used a distance of 3 mm between the points of the device in the two-point tests. On the other hand, in our study, we preferred to set the distance at 4 mm, given that a large population would be rejected if shorter distances were used.…”

Adaptation to simulator sickness in older drivers following multiple sessions in a driving simulator

“…All participants were active and healthy drivers. Upon their arrival in the laboratory, each participant was briefed on the requirements of the experiment and all read and signed an informed consent declaration conformed to the In- 33 served to screen for impairments that might affect driving and cognition. All drivers scored 27 or higher on the MMSE and had normal or corrected-to-normal vision.…”

Sensibility of tactile discrimination between the fingers of the dominant and non-dominant hands

“…Najmanja razlika u senzibilitetu je kod kažiprsta (statička diskriminacija: t =-0,43; p=0,6687 i dinamička diskriminacija: t=0,24; p=0,8103). Naši rezultati potvrđuju rezultate istraživanja drugih autora da nema statistički značajne razlike između prstiju dominantne i nedominantne ruke [1,4,16,17]. To se odnosi i na pojedinačne prste i generalno na sve prste lijeve i desne šake.…”