A link between perceptual learning, adaptation and sleep

Nitzan Censor, Avi Karni, Dov Sagi

Research output: Contribution to journalArticlepeer-review


Between-sessions gains in the texture discrimination task have been attributed to memory consolidation. A strong dependence of consolidation on sleep was suggested though not always supported by experimental results. Here we suggest that the interaction between consolidation and sleep depends on the adaptation level obtained during the training session. We find that both discrimination thresholds and learning depend on the number of trials used during training, with more trials producing higher discrimination thresholds due to suppressive processes related to adaptation. In addition, while learning benefits from increasing number of trials, a further increase in number of trials reduces learning. Consolidation may benefit from between-session sleep in the adapted states.

Original languageEnglish
Pages (from-to)4071-4074
Number of pages4
JournalVision Research
Issue number23
StatePublished - Nov 2006

Bibliographical note

Funding Information:
We thank M. Katkov and T. Livne for their helpful comments and R. Shani for her help in the statistical analysis. The research was supported by the Nella and Leon Benoziyo Center for Neurological Diseases at the Weizmann Institute of Science.


  • Adaptation
  • Consolidation
  • Perceptual learning
  • Sleep
  • Texture discrimination

ASJC Scopus subject areas

  • Sensory Systems
  • Ophthalmology


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