Skip to main content
Log in

Attending to local form while ignoring global aspects depends on handedness: evidence from TMS

  • Brief Communication
  • Published:

From Nature Neuroscience

View current issue Submit your manuscript

Abstract

Our perceptions of the whole and of the parts of a visual stimulus are mediated by different brain regions. We used low-frequency transcranial magnetic stimulation (TMS) to show for the first time that opposite, homologous regions in the two hemispheres are involved in attending to local parts for left- and right-handed individuals. The brain regions that focus on the 'trees' while ignoring the 'forest' are switched as a function of handedness.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Figure 1: Typical display sequence showing congruent and incongruent compound stimuli.
Figure 2: Performance (mean reaction time (RT) ± s.e.m.) for global and local identification pre- and post-TMS trains across stimulus category.

Similar content being viewed by others

References

  1. Navon, D. Cog. Psych. 9, 353–383 (1977).

    Article  Google Scholar 

  2. Fink, G. et al. Nature 382, 626–628 (1996).

    Article  CAS  Google Scholar 

  3. Delis, D.C., Robertson, L.C. & Efron, R. Neuropsychologia 24, 205–214 (1986).

    Article  CAS  Google Scholar 

  4. Robertson, L.C., Lamb, M. & Knight, R. J. Neurosci. 8, 3757–3769 (1988).

    Article  CAS  Google Scholar 

  5. Marshall, J.C. & Halligan, P.W. Nature 373, 521–523 (1995).

    Article  CAS  Google Scholar 

  6. Knecht, S. et al. Brain 123, 2512–2518 (2000).

    Article  Google Scholar 

  7. Laeng, B. & Peters, M. Neuropsychologia 33, 421–439 (1995).

    Article  CAS  Google Scholar 

  8. Pascual-Leone, A., Walsh, V. & Rothwell, J. Curr. Opin. Neurobiol. 10, 232–237 (2000).

    Article  CAS  Google Scholar 

  9. Fink, G. et al. Brain 120, 1779–1791 (1997).

    Article  Google Scholar 

  10. Shalev, L., Humphreys, G.W. & Mevorach, C. Cogn. Neuro. (in the press).

  11. Chen, R. et al. Neurology 48, 1398–1403 (1997).

    Article  CAS  Google Scholar 

  12. Hilgetag, C.C., Theorat, H. & Pascual-Leone, A. Nat. Neurosci. 4, 953–957 (2001).

    Article  CAS  Google Scholar 

Download references

Acknowledgements

This work was supported by a grant from the UK Medical Research Council.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Carmel Mevorach.

Ethics declarations

Competing interests

The authors declare no competing financial interests.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Mevorach, C., Humphreys, G. & Shalev, L. Attending to local form while ignoring global aspects depends on handedness: evidence from TMS. Nat Neurosci 8, 276–277 (2005). https://doi.org/10.1038/nn1400

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1038/nn1400

  • Springer Nature America, Inc.

This article is cited by

Navigation