A link between perceptual learning, adaptation and sleep

Nitzan Censor, Avi Karni, Dov Sagi*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

121 Scopus citations


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
Externally publishedYes


FundersFunder number
Weizmann Institute of Science
Nella and Leon Benoziyo Center for Neurological Diseases, Weizmann Institute of Science


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


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