Capacity limit of visual short-term memory in human posterior parietal cortex (original) (raw)

Nature volume 428, pages 751–754 (2004) Cite this article

Abstract

At any instant, our visual system allows us to perceive a rich and detailed visual world. Yet our internal, explicit representation of this visual world is extremely sparse: we can only hold in mind a minute fraction of the visual scene1,2. These mental representations are stored in visual short-term memory (VSTM). Even though VSTM is essential for the execution of a wide array of perceptual and cognitive functions3,4,5, and is supported by an extensive network of brain regions6,7,8,9, its storage capacity is severely limited10,11,12,13. With the use of functional magnetic resonance imaging, we show here that this capacity limit is neurally reflected in one node of this network: activity in the posterior parietal cortex is tightly correlated with the limited amount of scene information that can be stored in VSTM. These results suggest that the posterior parietal cortex is a key neural locus of our impoverished mental representation of the visual world.

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Figure 1: Trial design.

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Figure 2: Behavioural performance and IPS/IOS response functions in VSTM and IM experiments.

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Figure 3: Brain activation time courses.

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Figure 4: Response time courses during the encoding, maintenance and retrieval phases of a VSTM task with extended retention interval (9,200 ms).

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References

  1. Rensink, R. A. Change detection. Annu. Rev. Psychol. 53, 245–277 (2002)
    Article Google Scholar
  2. Simons, D. & Levin, D. Change blindness. Trends Cogn. Sci. 1, 261–267 (1997)
    Article CAS Google Scholar
  3. Chun, M. M. & Potter, M. C. A two-stage model for multiple target detection in rapid serial visual presentation. J. Exp. Psychol. Hum. Percept. Perform. 21, 109–127 (1995)
    Article CAS Google Scholar
  4. Jolicoeur, P., Dell' Acqua, R. & Crebolder, J. M. in The Limits of Attention: Temporal Constraints in Human Information Processing (ed. Shapiro, K.) 82–99 (Oxford Univ. Press, 2001)
    Book Google Scholar
  5. Wheeler, M. E. & Treisman, A. M. Binding in short-term visual memory. J. Exp. Psychol. Gen. 131, 48–64 (2002)
    Article Google Scholar
  6. Goldman-Rakic, P. S. in Handbook of Physiology: The Nervous System, Higher Functions of the Brain (eds Mountcastle, V. B. & Plum, F.) 373–417 (American Physiological Society, Bethesda, Maryland, 1987)
    Google Scholar
  7. Ungerleider, L. G., Courtney, S. M. & Haxby, J. V. A neural system for human visual working memory. Proc. Natl Acad. Sci. USA 95, 883–890 (1998)
    Article ADS CAS Google Scholar
  8. Callicott, J. H. et al. Physiological characteristics of capacity constraints in working memory as revealed by functional MRI. Cereb. Cortex 9, 20–26 (1999)
    Article CAS Google Scholar
  9. Linden, D. E. et al. Cortical capacity constraints for visual working memory: Dissociation of fMRI load effects in a fronto-parietal network. Neuroimage 20, 1518–1530 (2003)
    Article Google Scholar
  10. Duncan, J. et al. Systematic analysis of deficits in visual attention. J. Exp. Psychol. Gen. 128, 450–478 (1999)
    Article CAS Google Scholar
  11. Cowan, N. The magical number 4 in short-term memory: A reconsideration of mental storage capacity. Behav. Brain Sci. 24, 87–114 (2001)
    Article CAS Google Scholar
  12. Pashler, H. Familiarity and visual change detection. Percept. Psychophys. 44, 369–378 (1988)
    Article CAS Google Scholar
  13. Vogel, E. K., Woodman, G. F. & Luck, S. J. Storage of features, conjunctions and objects in visual working memory. J. Exp. Psychol. Hum. Percept. Perform. 27, 92–114 (2001)
    Article CAS Google Scholar
  14. Cohen, J. D. et al. Temporal dynamics of brain activation during a working memory task. Nature 386, 604–608 (1997)
    Article ADS CAS Google Scholar
  15. Phillips, W. A. On the distinction between sensory storage and short-term visual memory. Percept. Psychophys. 16, 283–290 (1974)
    Article Google Scholar
  16. Coltheart, M. in New Horizons in Psychology (ed. Dodwell, P. C.) 62–85 (Harmondsworth, Penguin, 1972)
    Google Scholar
  17. Baddeley, A. Working memory. Science 255, 556–559 (1992)
    Article ADS CAS Google Scholar
  18. Smith, E. E. & Jonides, J. Neuroimaging analyses of human working memory. Proc. Natl Acad. Sci. USA 95, 12061–12068 (1998)
    Article ADS CAS Google Scholar
  19. Rosnow, R. L. & Rosenthal, R. Contrasts and interactions redux: Five easy pieces. Psychol. Sci. 7, 253–257 (1996)
    Article Google Scholar
  20. Courtney, S. M., Ungerleider, L. G., Keil, K. & Haxby, J. V. Transient and sustained activity in a distributed neural system for human working memory. Nature 386, 608–611 (1997)
    Article ADS CAS Google Scholar
  21. Pessoa, K., Gutierrez, E., Bandettini, P. A. & Ungerleider, L. G. Neural correlates of visual working memory: fMRI amplitude predicts task performance. Neuron 35, 975–987 (2002)
    Article CAS Google Scholar
  22. Zarahn, E., Aguirre, G. & D'Esposito, M. A trial-based experimental design for fMRI. Neuroimage 6, 122–138 (1997)
    Article CAS Google Scholar
  23. Friedman-Hill, S. R., Robertson, L. C. & Treisman, A. Parietal contributions to visual feature binding: Evidence from a patient with bilateral lesions. Science 269, 853–855 (1995)
    Article ADS CAS Google Scholar
  24. Shafritz, K. M., Gore, J. C. & Marois, R. The role of the parietal cortex in visual feature binding. Proc. Natl Acad. Sci. USA 99, 10917–10922 (2002)
    Article ADS CAS Google Scholar
  25. Haxby, J. V. et al. Dissociation of object and spatial visual processing pathways in human extrastriate cortex. Proc. Natl Acad. Sci. USA 88, 1621–1625 (1991)
    Article ADS CAS Google Scholar
  26. McKeefry, D. J. & Zeki, S. The position and topography of the human colour centre as revealed by functional magnetic resonance imaging. Brain 120, 2229–2242 (1997)
    Article Google Scholar
  27. Curtis, C. E. & D'Esposito, M. Persistent activity in the prefrontal cortex during working memory. Trends Cogn. Sci. 7, 415–423 (2003)
    Article Google Scholar
  28. Beck, D. M., Rees, G., Frith, C. D. & Lavie, N. Neural correlates of change detection and change blindness. Nature Neurosci. 4, 645–650 (2001)
    Article CAS Google Scholar
  29. Gottlieb, J. P., Kusunoki, M. & Goldberg, M. E. The representation of visual salience in monkey parietal cortex. Nature 391, 481–484 (1998)
    Article ADS CAS Google Scholar
  30. Kourtzi, Z. & Kanwisher, N. Representation of perceived object shape by the human lateral occipital complex. Science 293, 1506–1509 (2001)
    Article ADS CAS Google Scholar

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Acknowledgements

We thank I. Gauthier, M. Chun, G. Logan and J. Schall for comments on earlier versions of this manuscript, and D. Nikolaiczyk-Stocks and A. Snyder for expert technical assistance. This work was supported by a grant from the NSF to R.M.

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  1. Vanderbilt Vision Research Center, Department of Psychology, Vanderbilt University, 530 Wilson Hall, Nashville, Tennessee, 37203, USA
    J. Jay Todd & René Marois

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  1. J. Jay Todd
  2. René Marois

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Correspondence toRené Marois.

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Todd, J., Marois, R. Capacity limit of visual short-term memory in human posterior parietal cortex.Nature 428, 751–754 (2004). https://doi.org/10.1038/nature02466

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