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Segregation of tactile input features in neurons of the cuneate nucleus.

Jörntell, Henrik LU ; Bengtsson, Fredrik LU ; Geborek, Pontus LU ; Spanne, Anton LU ; Terekhov, Alexander V and Hayward, Vincent (2014) In Neuron 83(6). p.1444-1452
Abstract
Our tactile perception of external objects depends on skin-object interactions. The mechanics of contact dictates the existence of fundamental spatiotemporal input features-contact initiation and cessation, slip, and rolling contact-that originate from the fact that solid objects do not interpenetrate. However, it is unknown whether these features are represented within the brain. We used a novel haptic interface to deliver such inputs to the glabrous skin of finger/digit pads and recorded from neurons of the cuneate nucleus (the brain's first level of tactile processing) in the cat. Surprisingly, despite having similar receptive fields and response properties, each cuneate neuron responded to a unique combination of these inputs. Hence,... (More)
Our tactile perception of external objects depends on skin-object interactions. The mechanics of contact dictates the existence of fundamental spatiotemporal input features-contact initiation and cessation, slip, and rolling contact-that originate from the fact that solid objects do not interpenetrate. However, it is unknown whether these features are represented within the brain. We used a novel haptic interface to deliver such inputs to the glabrous skin of finger/digit pads and recorded from neurons of the cuneate nucleus (the brain's first level of tactile processing) in the cat. Surprisingly, despite having similar receptive fields and response properties, each cuneate neuron responded to a unique combination of these inputs. Hence, distinct haptic input features are encoded already at subcortical processing stages. This organization maps skin-object interactions into rich representations provided to higher cortical levels and may call for a re-evaluation of our current understanding of the brain's somatosensory systems. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Neuron
volume
83
issue
6
pages
1444 - 1452
publisher
Cell Press
external identifiers
  • pmid:25175880
  • wos:000342502400027
  • scopus:84922017407
ISSN
0896-6273
DOI
10.1016/j.neuron.2014.07.038
language
English
LU publication?
yes
id
25d675f3-a619-492b-99cb-64f053ca1775 (old id 4692778)
alternative location
http://www.ncbi.nlm.nih.gov/pubmed/25175880?dopt=Abstract
date added to LUP
2014-10-01 11:32:00
date last changed
2017-11-12 03:06:47
@article{25d675f3-a619-492b-99cb-64f053ca1775,
  abstract     = {Our tactile perception of external objects depends on skin-object interactions. The mechanics of contact dictates the existence of fundamental spatiotemporal input features-contact initiation and cessation, slip, and rolling contact-that originate from the fact that solid objects do not interpenetrate. However, it is unknown whether these features are represented within the brain. We used a novel haptic interface to deliver such inputs to the glabrous skin of finger/digit pads and recorded from neurons of the cuneate nucleus (the brain's first level of tactile processing) in the cat. Surprisingly, despite having similar receptive fields and response properties, each cuneate neuron responded to a unique combination of these inputs. Hence, distinct haptic input features are encoded already at subcortical processing stages. This organization maps skin-object interactions into rich representations provided to higher cortical levels and may call for a re-evaluation of our current understanding of the brain's somatosensory systems.},
  author       = {Jörntell, Henrik and Bengtsson, Fredrik and Geborek, Pontus and Spanne, Anton and Terekhov, Alexander V and Hayward, Vincent},
  issn         = {0896-6273},
  language     = {eng},
  number       = {6},
  pages        = {1444--1452},
  publisher    = {Cell Press},
  series       = {Neuron},
  title        = {Segregation of tactile input features in neurons of the cuneate nucleus.},
  url          = {http://dx.doi.org/10.1016/j.neuron.2014.07.038},
  volume       = {83},
  year         = {2014},
}