Relations between tactile sensitivity of the finger, arm, and cheek skin over the lifespan showing decline only on the finger - Publications des lauréats des projets ERC financés sur le site Aix Marseille Accéder directement au contenu
Article Dans Une Revue Frontiers in Aging Neuroscience Année : 2024

Relations between tactile sensitivity of the finger, arm, and cheek skin over the lifespan showing decline only on the finger

Résumé

Touch sensitivity generally declines with age, contributing to loss of manual dexterity and tactile function. We investigated how touch changes over the lifespan, using different tests and on three body sites. We used a classical test of force detection sensitivity, where calibrated monofilaments were applied passively to the right index finger pad, forearm, and cheek. In addition, at the index, we used an active touch spatial discrimination task, developed by our group. Spatial discrimination was estimated through participants' ability to evaluate the distance between parallel bands printed on acrylic plates. Data were collected from 96 healthy women, aged 20–75 years. Force detection and tactile spatial discrimination on the index deteriorated significantly with age; however, no change was found for tactile detection on the forearm or cheek. Tactile detection on the cheek remained remarkably highly sensitive throughout life. There was a significant positive relationship between force detection and spatial discrimination on the index. Further, force detection on the forearm was significantly associated with detection on the index and cheek. Our results suggest a decrease in touch perception with age on the index finger pad, yet a preservation of tactile sensitivity in hairy skin. This opens discussion about the impact of daily activities upon the glabrous hand skin and on the function of hairs in tactile sensitivity. We highlight the need for new methods in evaluating tactile sensitivity on hairy skin.
Fichier principal
Vignette du fichier
2024_SamainAupic_etal_FrontAgingNeuro.pdf (663.67 Ko) Télécharger le fichier
Origine Publication financée par une institution
licence

Dates et versions

hal-04633064 , version 1 (03-07-2024)

Licence

Identifiants

Citer

Léonard Samain-Aupic, Mariama Dione, Edith Ribot-Ciscar, Rochelle Ackerley, Jean-Marc Aimonetti. Relations between tactile sensitivity of the finger, arm, and cheek skin over the lifespan showing decline only on the finger. Frontiers in Aging Neuroscience, 2024, 16, ⟨10.3389/fnagi.2024.1387136⟩. ⟨hal-04633064⟩
0 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More