Number of Spikes in Climbing Fibers Determines the Direction of Cerebellar Learning

作者:Rasmussen Anders*; Jirenhed Dan Anders; Zucca Riccardo; Johansson Fredrik; Svensson Par; Hesslow Germund
来源:Journal of Neuroscience, 2013, 33(33): 13436-13440.
DOI:10.1523/JNEUROSCI.1527-13.2013

摘要

Cerebellar learning requires context information from mossy fibers and a teaching signal through the climbing fibers from the inferior olive. Although the inferior olive fires in bursts, virtually all studies have used a teaching signal consisting of a single pulse. Following a number of failed attempts to induce cerebellar learning in decerebrate ferrets with a nonburst signal, we tested the effect of varying the number of pulses in the climbing fiber teaching signal. The results show that training with a single pulse in a conditioning paradigm in vivo does not result in learning, but rather causes extinction of a previously learned response.

  • 出版日期2013-8-14