Neurophysiological investigation of the basis of the fMRI signal

  title={Neurophysiological investigation of the basis of the fMRI signal},
  author={N. Logothetis and Jon M. Pauls and M. Augath and T. Trinath and A. Oeltermann},
  • N. Logothetis, Jon M. Pauls, +2 authors A. Oeltermann
  • Published 2001
  • Biology, Medicine
  • Nature
  • Functional magnetic resonance imaging (fMRI) is widely used to study the operational organization of the human brain, but the exact relationship between the measured fMRI signal and the underlying neural activity is unclear. [...] Key Method We compared local field potentials (LFPs), single- and multi-unit spiking activity with highly spatio-temporally resolved blood-oxygen-level-dependent (BOLD) fMRI responses from the visual cortex of monkeys. The largest magnitude changes were observed in LFPs, which at…Expand Abstract
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