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Brain Structure and Function

, Volume 214, Issue 4, pp 355–359 | Cite as

Visual recognition of shapes and textures: an fMRi study

  • Maria Stylianou-Korsnes
  • Miriam Reiner
  • Svein J. Magnussen
  • Marcus W. Feldman
Original article

Abstract

Previous literature suggest that processing of visually presented shapes and textures starts in the early visual areas, but subsequently follow different pathways. The purpose of this experiment was to further investigate differential activation for shapes and textures in order elucidate the pathways involved in visual shape and texture matching. In the present study, brain areas involved in discrimination of shapes and textures are mapped, using the same set of stimuli for shape and texture decisions. Texture matching activates more prefrontal regions than shape matching, particularly regions in the left middle frontal gyrus and bilateral inferior frontal gyrus. Shape specific activation includes an occipital/temporal region which is associated with multimodal object matching. The pattern of results suggests that recognition of textures may be based upon different ordering conditions in memory, which involve a prefrontal network and require a great deal more workload than the holistic representation of shape.

Keywords

Shapes and textures Relational processing Holistic processing 

References

  1. Amedi A, Jacobson G, Hendler T, Malach R, Zohay E (2002) Convergence of visual and tactile shape processing in the human lateral occipital complex. Cereb Cortex 12:1202–1212CrossRefPubMedGoogle Scholar
  2. Badgaiyan RD, Schacter DL, Alpert NM (2002) Retrieval of relational information: a role for the left inferior prefrontal cortex. Neuroimage 17:393–400CrossRefPubMedGoogle Scholar
  3. Cant JS, Goodale MA (2007) Attention to form or surface properties modulates different regions of human occipitotemporal cortex. Cereb Cortex 17:713–731CrossRefPubMedGoogle Scholar
  4. Connor CE (2004) Shape dimensions and object primitives. In: Chalupa LM, Werner JS (eds) The visual neurosciences, vol 2. MIT Press, Cambridge, pp 1080–1089Google Scholar
  5. Goodale MA, Milner AD (2004) Sight unseen: an exploration of conscious and unconscious vision. Oxford University Press, OxfordGoogle Scholar
  6. Glover GH, Lai S (1998) Self-navigated spiral fMRI: interleaved versus single-shot. Magn Reson Med 39(3):361–368Google Scholar
  7. Johnson MK, Rave CL, Mitchell KJ, Greene EJ, Anderson AW (2003) fMRI evidence for an organization of prefrontal cortex by both type of process and type of information. Cereb Cortex 13:265–273CrossRefPubMedGoogle Scholar
  8. Kastner S, De Weerd P, Ungerleider LG (2000) Texture segregation in the human visual cortex: a functional MRI study. J Neurophysiol 83:2453–2457PubMedGoogle Scholar
  9. Landy MS, Graham N (2004) Visual perception of texture. In: Chalupa LM, Werner JS (eds) The visual neurosciences, vol 2. MIT Press, Cambridge, pp 1106–1115Google Scholar
  10. Milner AD, Goodale MA (1995) The visual brain in action. Oxford University Press, OxfordGoogle Scholar
  11. Naghavi HR, Nyberg L (2005) Common fronto-parietal activity in attention, memory and consciousness: shared demands on integration? Consc Cogn 14:390–425CrossRefGoogle Scholar
  12. Oldfield RC (1971) The assessment and analysis of handedness: the Edinburgh inventory. Neuropsychologia 9:97–113CrossRefPubMedGoogle Scholar

Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  • Maria Stylianou-Korsnes
    • 1
    • 2
    • 3
  • Miriam Reiner
    • 4
    • 5
  • Svein J. Magnussen
    • 1
  • Marcus W. Feldman
    • 5
  1. 1.Department of Psychology, Center for the Study of Human CognitionUniversity of OsloOsloNorway
  2. 2.Department of Psychiatry of Old AgeOslo University Hospital, UllevalOsloNorway
  3. 3.Department of PsychologyStanford UniversityStanfordUSA
  4. 4.Technion, Israel Institute of TechnologyHaifaIsrael
  5. 5.Department of Biological SciencesStanford UniversityStanfordUSA

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