ZFIN ID: ZDB-PUB-110628-36
Cerebellar-dependent learning in larval zebrafish
Aizenberg, M., and Schuman, E.M.
Date: 2011
Source: The Journal of neuroscience : the official journal of the Society for Neuroscience   31(24): 8708-8712 (Journal)
Registered Authors: Schuman, Erin
Keywords: none
MeSH Terms:
  • Analysis of Variance
  • Animals
  • Cerebellum/cytology
  • Cerebellum/physiology*
  • Cerebellum/surgery
  • Conditioning, Classical/physiology*
  • Egtazic Acid/analogs & derivatives
  • Functional Laterality
  • Larva/physiology*
  • Laser Therapy/methods
  • Locomotion
  • Neurons/classification
  • Neurons/physiology
  • Photic Stimulation
  • Statistics, Nonparametric
  • Touch
  • Zebrafish/physiology*
PubMed: 21677154 Full text @ J. Neurosci.
ABSTRACT
Understanding how neuronal network activity contributes to memory formation is challenged by the complexity of most brain circuits and the restricted ability to monitor the activity of neuronal populations in vivo. The developing zebrafish (Danio rerio) is an animal model that circumvents these problems, because zebrafish larvae possess a rich behavioral repertoire and an accessible brain. Here, we developed a classical conditioning paradigm in which 6- to 8-d-old larvae develop an enhanced motor response to a visual stimulus (conditioned stimulus, CS) when it is paired with touch (unconditioned stimulus, US). Using in vivo calcium imaging we demonstrate that CS and US activate different subsets of neurons in the cerebellum; their activity, modulated by learning two-photon laser ablation, revealed that the cerebellum is involved in acquisition and extinction, but not the retention, of this memory.
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