Spontaneous muscle twitches during sleep guide spinal self-organization.

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Abstract

During development, information about the three-dimensional shape and mechanical properties of the body is laid down in the synaptic connectivity of sensorimotor systems through unknown adaptive mechanisms. In spinal reflex systems, this enables the fast transformation of complex sensory information into adequate correction of movements. Here we use a computer simulation to show that an unsupervised correlation-based learning mechanism, using spontaneous muscle twitches, can account for the functional adaptation of the withdrawal reflex system. We also show that tactile feedback resulting from spontaneous muscle twitches during sleep(1-3) does indeed modify sensorimotor transformation in young rats in a predictable manner. The results indicate that these twitches, corresponding to human fetal movements(4), are important in spinal self-organization.

Detaljer

Författare
Enheter & grupper
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Neurovetenskaper
Originalspråkengelska
Sidor (från-till)72-75
TidskriftNature
Volym424
Utgivningsnummer6944
StatusPublished - 2003
PublikationskategoriForskning
Peer review utfördJa