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Related Experiment Videos

Brain mapping in animals and humans

M I Sereno1

  • 1University of California at San Diego, La Jolla 92093-0515, USA. sereno@cogsci.ucsd.edu

Current Opinion in Neurobiology
|June 23, 1998
PubMed
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Functional magnetic resonance imaging (fMRI) studies reveal similarities and differences in human and primate cortical mapping. Advanced fMRI analysis and integration with other imaging methods enhance understanding of brain activation sequences.

Area of Science:

  • Neuroscience
  • Neuroimaging
  • Comparative Cognition

Background:

  • Functional magnetic resonance imaging (fMRI) has been instrumental in mapping human cortical areas.
  • Comparing human cortical maps with those from nonhuman primates reveals both shared and distinct organizational principles.
  • Integrating data across numerous neuroimaging studies presents analytical and interpretative challenges.

Purpose of the Study:

  • To highlight similarities and differences between human and nonhuman primate cortical mapping using fMRI.
  • To emphasize the potential of improved fMRI data analysis and visualization techniques for integrating neuroimaging findings.
  • To explore the combination of fMRI with other modalities for high-temporal-resolution brain activity sequencing.

Main Methods:

Related Experiment Videos

  • Utilizing functional magnetic resonance imaging (fMRI) for human cortical area mapping.
  • Employing advanced methods for analyzing, displaying, and averaging fMRI data on an unfolded cortical surface atlas.
  • Combining fMRI with electrical and passive magnetic imaging modalities to capture event-related activation sequences.

    • Main Results:

    • fMRI studies reveal significant overlaps and notable divergences in cortical organization between humans and nonhuman primates.
    • Enhanced data processing techniques applied to fMRI improve the integration of findings from multiple imaging studies.
    • Multimodal imaging approaches enable the visualization of millisecond-to-millisecond cortical activation sequences when regions are spatially separated.

    Conclusions:

    • Comparative fMRI studies are crucial for understanding human brain evolution and function.
    • Advancements in fMRI analysis and visualization are key to synthesizing the growing body of neuroimaging research.
    • Integrating fMRI with electrophysiological and magnetoencephalographic methods offers a powerful approach to studying the temporal dynamics of neural activity.