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Knowing without doing

Is it possible to know what to do without being able to act upon this knowledge? In a recent study, Atallah et al. show clear evidence that learning a new skill and expressing it are two separate steps that can be dissociated.

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Figure 1: Anatomical structures and logical relationships behind 'knowing without doing'.

Kimberly Caesar


  1. Atallah, H.E. et al. Nat. Neurosci. 10, 126–131 (2007).

    Article  CAS  Google Scholar 

  2. Krupa D.J. & Thompson R.F. Proc. Natl. Acad. Sci. 92, 5097–5101 (1995).

    Article  CAS  Google Scholar 

  3. Robinson, F.R., Fuchs, A.F. & Noto, C.T. Ann. NY Acad. Sci. 956, 155–163 (2002).

    Article  CAS  Google Scholar 

  4. Sutton, R.S. & Barto A.G. Reinforcement Learning: An Introduction (MIT Press, Cambridge, Massachusetts, USA, 1998).

    Google Scholar 

  5. O'Doherty J. et al. Science 304, 452–454 (2004).

    Article  CAS  Google Scholar 

  6. Joel, D., Niv, Y. & Ruppin, E. Neural Networks 15, 535–547 (2002).

    Article  Google Scholar 

  7. Dayan, P. & Balleine, B.W. Neuron 36, 285–298 (2002).

    Article  CAS  Google Scholar 

  8. Yin, H.H. & Knowlton, B.J. Nat. Rev. Neurosci. 7, 464–476 (2006).

    Article  CAS  Google Scholar 

  9. Devan, B.D., McDonald R.J. & White, N.M. Behav. Brain Res. 100, 5–14 (1999).

    Article  CAS  Google Scholar 

  10. Devan, B.D. & White, N.M. J. Neurosci. 22, 2789–2798 (1999).

    Article  Google Scholar 

  11. Frank, J.J. & Claus, E.D. Psych. Rev. 113, 300–326 (2006).

    Article  Google Scholar 

  12. Haber, S.N., Fudge, J.L. & McFarland, N.R. J. Neurosci. 20, 69–82 (2000).

    Article  Google Scholar 

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Lerchner, A., La Camera, G. & Richmond, B. Knowing without doing. Nat Neurosci 10, 15–17 (2007).

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