Pedro A Valdes-Sosa

Summary

Affiliation: Cuban Neuroscience Center
Country: Cuba

Publications

  1. ncbi Spatio-temporal autoregressive models defined over brain manifolds
    Pedro A Valdes-Sosa
    Cuban Neuroscience Center, Ave 25 15202, esquina 158 Cubanacan Playa CIUDAD Havana
    Neuroinformatics 2:239-50. 2004
  2. ncbi Nonlinear EEG analysis based on a neural mass model
    P A Valdes
    Cuban Neuroscience Center CNIC, P O Box 6880, Havana, Cuba
    Biol Cybern 81:415-24. 1999
  3. ncbi Effective connectivity: influence, causality and biophysical modeling
    Pedro A Valdes-Sosa
    Cuban Neuroscience Center, Ave 25 15202 esquina 158, Cubanacan, Playa, Cuba
    Neuroimage 58:339-61. 2011
  4. ncbi EEG source imaging with spatio-temporal tomographic nonnegative independent component analysis
    Pedro A Valdes-Sosa
    Cuban Neuroscience Center, Neurostatistics Department, Cubanacan, Playa, Havana, Cuba
    Hum Brain Mapp 30:1898-910. 2009
  5. ncbi Model driven EEG/fMRI fusion of brain oscillations
    Pedro A Valdes-Sosa
    Cuban Neuroscience Center, Havana, Cuba
    Hum Brain Mapp 30:2701-21. 2009
  6. ncbi Estimating brain functional connectivity with sparse multivariate autoregression
    Pedro A Valdes-Sosa
    Cuban Neuroscience Center, Avenue 25, No 15202 esquina 158 Cubanacan, PO Box 6412 Playa, Area Code 11600 Ciudad Habana, Cuba
    Philos Trans R Soc Lond B Biol Sci 360:969-81. 2005
  7. ncbi Introduction: multimodal neuroimaging of brain connectivity
    Pedro A Valdes-Sosa
    Cuban Neuroscience Centre, Avenue 25 No 15202 esquina 158, Cubanacan, Playa, PO Box 6412 6414, Area Code 11600, Ciudad Habana, Cuba
    Philos Trans R Soc Lond B Biol Sci 360:865-7. 2005
  8. ncbi Bayesian model averaging in EEG/MEG imaging
    Nelson J Trujillo-Barreto
    Cuban Neuroscience Center, Havana, Cuba
    Neuroimage 21:1300-19. 2004
  9. ncbi Approximate average head models for EEG source imaging
    Pedro A Valdés-Hernández
    Neuroimaging Department, Cuban Neuroscience Center, Havana, Cuba
    J Neurosci Methods 185:125-32. 2009
  10. ncbi Exploring event-related brain dynamics with tests on complex valued time-frequency representations
    Eduardo Martínez-Montes
    Neurostatistics Department, Cuban Neuroscience Center, Havana, Cuba
    Stat Med 27:2922-47. 2008

Collaborators

Detail Information

Publications15

  1. ncbi Spatio-temporal autoregressive models defined over brain manifolds
    Pedro A Valdes-Sosa
    Cuban Neuroscience Center, Ave 25 15202, esquina 158 Cubanacan Playa CIUDAD Havana
    Neuroinformatics 2:239-50. 2004
    ..Use of the model is illustrated with an fMRI time series that was gathered concurrently with EEG in order to analyze the origin of resting brain rhythms...
  2. ncbi Nonlinear EEG analysis based on a neural mass model
    P A Valdes
    Cuban Neuroscience Center CNIC, P O Box 6880, Havana, Cuba
    Biol Cybern 81:415-24. 1999
    ..These attractors are also found by means of a nonlinear time series analysis of the EEG recordings. We conclude that the Hopf bifurcation described by Zetterberg et al. (1978) is present in actual brain dynamics...
  3. ncbi Effective connectivity: influence, causality and biophysical modeling
    Pedro A Valdes-Sosa
    Cuban Neuroscience Center, Ave 25 15202 esquina 158, Cubanacan, Playa, Cuba
    Neuroimage 58:339-61. 2011
    ..We show that some of the challenges faced in this field have promising solutions and speculate on future developments...
  4. ncbi EEG source imaging with spatio-temporal tomographic nonnegative independent component analysis
    Pedro A Valdes-Sosa
    Cuban Neuroscience Center, Neurostatistics Department, Cubanacan, Playa, Havana, Cuba
    Hum Brain Mapp 30:1898-910. 2009
    ..The temporal signatures are at present unconstrained but can be required to be smooth, complex, or following a multivariate autoregressive model...
  5. ncbi Model driven EEG/fMRI fusion of brain oscillations
    Pedro A Valdes-Sosa
    Cuban Neuroscience Center, Havana, Cuba
    Hum Brain Mapp 30:2701-21. 2009
    ..The LL-innovation estimation method has been already applied to small and medium scale models. With improved Bayesian computations the practical estimation of very large scale EEG/fMRI models shall soon be possible...
  6. ncbi Estimating brain functional connectivity with sparse multivariate autoregression
    Pedro A Valdes-Sosa
    Cuban Neuroscience Center, Avenue 25, No 15202 esquina 158 Cubanacan, PO Box 6412 Playa, Area Code 11600 Ciudad Habana, Cuba
    Philos Trans R Soc Lond B Biol Sci 360:969-81. 2005
    ..Application of the method to real data was illustrated by the identification of neural circuitry related to emotional processing as measured by BOLD...
  7. ncbi Introduction: multimodal neuroimaging of brain connectivity
    Pedro A Valdes-Sosa
    Cuban Neuroscience Centre, Avenue 25 No 15202 esquina 158, Cubanacan, Playa, PO Box 6412 6414, Area Code 11600, Ciudad Habana, Cuba
    Philos Trans R Soc Lond B Biol Sci 360:865-7. 2005
  8. ncbi Bayesian model averaging in EEG/MEG imaging
    Nelson J Trujillo-Barreto
    Cuban Neuroscience Center, Havana, Cuba
    Neuroimage 21:1300-19. 2004
    ....
  9. ncbi Approximate average head models for EEG source imaging
    Pedro A Valdés-Hernández
    Neuroimaging Department, Cuban Neuroscience Center, Havana, Cuba
    J Neurosci Methods 185:125-32. 2009
    ..This AM does not need a strict alignment between head models, and can therefore be easily achieved for any type of head modeling approach...
  10. ncbi Exploring event-related brain dynamics with tests on complex valued time-frequency representations
    Eduardo Martínez-Montes
    Neurostatistics Department, Cuban Neuroscience Center, Havana, Cuba
    Stat Med 27:2922-47. 2008
    ..Both statistics gave unambiguous evidence of the presence of phase locking suggesting that they constitute promising tools in the analysis of event-related brain dynamics...
  11. ncbi Concurrent EEG/fMRI analysis by multiway Partial Least Squares
    Eduardo Martínez-Montes
    Neurophysics Department, Cuban Neuroscience Center, Havana, Cuba
    Neuroimage 22:1023-34. 2004
    ..As of yet, no single neuroimaging method offers the optimal combination of spatial and temporal resolution; fusing fMRI and EEG meaningfully extends the spatio-temporal resolution and sensitivity of each method...
  12. ncbi 3D statistical parametric mapping of quiet sleep EEG in the first year of life
    Jorge Bosch-Bayard
    Centro de Neurociencias de Cuba, Avenida 25 y 158, Playa, La Habana, Cuba
    Neuroimage 59:3297-308. 2012
    ..80, 0.69 for average reference scalp EEG SPM, and 0.48 for Laplacian EEG SPM. This superior performance of 3D SPM over scalp qEEG suggests that it might be a promising approach for the evaluation of brain damage in the first year of life...
  13. ncbi White matter architecture rather than cortical surface area correlates with the EEG alpha rhythm
    Pedro A Valdés-Hernández
    Neuroimaging Department, Cuban Neuroscience Center, Ave 25, Esq 158, 15202, PO Box 6412 6414, Cubanacan, Playa, Havana, Cuba
    Neuroimage 49:2328-39. 2010
    ..We found that white matter architecture rather than neocortical area determines the dynamics of the alpha rhythm...
  14. ncbi Multimodal quantitative neuroimaging databases and methods: the Cuban Human Brain Mapping Project
    Gertrudis Hernández-González
    Clinical Neuroscience Department, Cuban Neuroscience Center, Havana, Cuba
    Clin EEG Neurosci 42:149-59. 2011
    ..Examples of clinical studies using qMN are given and, more importantly, receiver operator characteristics (ROC) analyses of the different developments document a sustained effort to assess the clinical usefulness of the techniques...
  15. ncbi Identifying complex brain networks using penalized regression methods
    Eduardo Martínez-Montes
    Neurostatistics Department, Cuban Neuroscience Center, Cubanacan, Havana, Cuba
    J Biol Phys 34:315-23. 2008
    ..This study is an initial attempt to explicitly include complexity descriptors as a constraint in multilinear EEG analysis...