Riera J., Goto T., Kawashima R. An electrophysiological microscope for fast assessments to the activity of cortical networks in vivo: from population inputs to single unit outputs. Frontiers in Neural Circuits 8(4), 1-14, 2014.


Aizawa-Kohama M., Endo T., Kitada M., Wakao S., Sumiyoshi A., Matsuse D., Kuroda Y., Riera J., Kawashima R., Tominaga T., Dezawa M. Transplantation of bone marrow-derived neural precursor cells ameliorates deficits in a rat model of complete spinal cord transection. Cell Transplantation 22(9): 1613-1625, 2013.

Wang K., Riera J., Enjieu Kadji H., Goto T., Kawashima R. The role of the extracellular impedance profiles in the compartmental models for neurons: a unified formalism for recording and stimulation. Neural Computation 25: 1807-1852, 2013.

Riera J, Cabo A. Instantaneous charge unbalance in the brain: a result from procedural errors or an authentic physical phenomenon? Journal of Neurophysiology 109:1684-1685, 2013.


Riera J., Ogawa T., Goto T., Sumiyoshi A., Nonaka H., Evans A., Miyakawa H., Kawashima R. Pitfalls in the dipolar model for the neocortical EEG sources. Journal of Neurophysiology 108(4): 956-975, 2012.

Sumiyoshi A., Suzuki H., Ogawa T., Riera J., Shimokawa H., Kawashima R. Coupling between gamma oscillation and fMRI signal in rat somatosensory cortex: its dependence on systemic physiological parameters. NeuroImage 60(1):738-746, 2012.


Riera J., Hatanaka R., Ozaki T., and Kawashima R. Modeling the spontaneous Ca2+ oscillations in astrocytes: Inconsistencies and usefulness. Journal of Integrative Neuroscience 10:439-473, 2011.

Valdés-Hernández P.A., Sumiyoshi A., Nonaka H., Haga R., Aubert-Vásquez E., Iturria-Medina Y., Riera J., Kawashima R. An in vivo MRI template set for morphometry, tissue segmentation and fMRI localization in rats. Frontiers in Neuroscience (Neuroinformatics) 5, article 26:1-19, 2011 (corresponding author: Jorge Riera)

Ogawa T., Riera J., Goto T., Sumiyoshi A., Nonaka H., Jerbi K., Bertrand O., Kawashima R. Large-scale heterogeneous representation of sound attributes in rat primary auditory cortex: from unit activity to population dynamics. The Journal of Neuroscience 31(41):14639-14653, 2011.

Riera J., Hatanaka R., Uchida T., Ozaki T., Kawashima R. Quantifying the uncertainty of spontaneous Ca2+ oscillations in astrocytes: Particulars of Alzheimer’s disease. Biophysical Journal, 101(3), 554-564, 2011.

Crivaro M., Enjieu-Kadji H., Hatanaka R., Nakauchi S., Bosch J., Judin J., Riera J., Kawashima R. Multi-photon fluorescent images with a spatially varying background signal: A ML deconvolution method. Journal of Microscopy, 242, Pt 3, 311-324, 2011.

Sumiyoshi, A., Riera J., Ogawa T., Kawashima R. A Mini-Cap for simultaneous EEG and fMRI recording in rodents. NeuroImage 54, 1951-1965, 2011.


Riera J., Valdes-Sosa P. Mesoscale in neuroimaging: creating bridges between the microscopic and system levels. Journal of Integrative Neuroscience 9(4), v-vii, 2010.

Bosch J., Riera J., Biscay R., Wong K.F.K., Galka A., Yamashita O., Sadato N., Kawashima R., Aubert E., Rodriguez R., Valdes P., Miwakeichi F., Ozaki T. Spatio-temporal correlations from fMRI time series based on the NN-ARx model. Journal of Integrative Neuroscience 9(4), 381-406, 2010.

Goto T., Hatanaka R., Ogawa T., Sumiyoshi A., Riera J., Kawashima R. An evaluation of the conductivity profile in the barrel cortex of Wistar rats. J. Neurophysiol. 104, 3388-3412, 2010.

Riera J., Sumiyoshi A. Brain oscillations: Ideal scenery to understand the neurovascular coupling. Current Opinion in Neurology 23(4), 374-381, 2010. (Review)

Riera J., Ogawa T., Hatanaka R., Goto T., Sumiyoshi A., Enjieu Kadji H., Nakauchi S., Kawashima R. Concurrent observations of astrocytic Ca2+ activity and multisite extracellular potentials from an intact cerebral cortex. J. Biophotonics 3, 3, 147-160, 2010.


Homma N., Kato S., Goto T., Sakai M., Sugita N., Yoshizawa M., Yomogida Y., Sassa Y, Sugiura M., Riera J., Kawashima R. Human brain activities related to manual control of nonholonomic systems: An fMRI study. IJACE International Journal of Advanced Computed Engineering 2, 2, 129-133, 2009.

Yokoyama S., Kim J., Uchida S., Miyamoto T., Yoshimoto K., Riera J., Yusa N., Kawashima R. Left middle temporal deactivation caused by insufficient second language word comprehension by Chinese-Japanese bilinguals. Journal of Neurolinguistics 22, 476-485, 2009.


Stephan K.E., Riera J., Deco G., Horwitz B. The brain connectivity workshops: Moving the frontiers of computational systems neuroscience. NeuroImage, 42, 1-9, 2008.

Riera J., Schousboe A., Waagepetersen H.S., Howarth C., Hyder F. The micro-architecture of the cerebral cortex: Functional neuroimaging models and metabolism. NeuroImage, 40, 1436-1459, 2008

Wan X., Sekiguchi A., Yokoyama S., Riera J., Kawashima R. Electromagnetic source imaging: Backus-Gilbert resolution spread function-constrained and functional MRI-guided spatial filtering. Human Brain Mapping, 29, 627-643, 2008.


Riera J., Jimenez J.C., Wan X., Kawashima R., Ozaki T. Nonlinear local electro-vascular coupling. Part II: From data to neural masses. Human Brain Mapping, 28, 335-354, 2007.


Sakai Y., Iwata K., Riera J., Wan X., Yokoyama S., Shimoda Y., Kawashima R., Yoshimoto K., Koizumi M. An ERP study of the integration process between a noun and a numeral classifier: Semantic or syntactic? Cognitive Studies: Bulletin of the Japanese Cognitive Science Society, 13, 3, 443-454, 2006.

Yokoyama S., Miyamoto T., Riera J., Kim J., Akitsuki Y., Iwata K., Yoshimoto K., Horie K., Sato S., Kawashima R. Cortical mechanisms involved in the processing of verbs: An fMRI study. Journal of Cognitive Neuroscience, 18, 8, 1304-1313, 2006.

Poznanski R., Riera J. fMRI Models of Dendritic and astrocytic networks. J. Integrative Neuroscience, 5, 2, 273-326, 2006. (Review)

Wan X., Riera J., Iwata K., Takahashi M., Wakabayashi T., Kawashima R. The neural basis of the hemodynamic response nonlinearity in human primary visual cortex: Implications for neurovascular coupling mechanism. NeuroImage, 32, 616-625, 2006 (Rapid Communication).

Riera J., Valdés P.A., Tanabe K., Kawashima R. A theoretical formulation of the electrophysiological inverse problem: The spherical head model. Phys. Med. Biol., 51, 1737-1758, 2006.

Riera J., Wan X., Jimenez J.C., Kawashima R. Nonlinear local electro-vascular coupling. Part I: A theoretical model. Human Brain Mapping, 27, 896-914, 2006.

Wan X., Iwata K., Riera J., Ozaki T., Kitamura M., Kawashima R. Artifact reduction for EEG/fMRI recordings: Nonlinear reduction of ballistocardiogram artifacts. Clinical Neurophysiology, 117, 668-680, 2006.

Wan X., Iwata K., Riera J., Kitamura M., Kawashima R. Artifact reduction for EEG/fMRI recordings: Adaptive FIR reduction of imaging artifact. Clinical Neurophysiology, 117, 681-692, 2006.


Miura N., Watanabe J., Iwata K., Sassa Y., Riera J., Tsuchiya H., Sato S., Horie K., Takahashi M., Kitamura M., Kawashima R. Cortical Activation during reading of ancient versus modern Japanese texts: fMRI study. NeuroImage, 26, 2, 426-431, 2005.

Riera J., Aubert E., Iwata K., Kawashima R., Wan X., Ozaki T. Fusing EEG and fMRI based on a bottom-up model: Inferring activation and effective connectivity in neural masses. Phil. Trans. R. Soc. Lond. B., 360, 1457, 1025-1041, 2005.


Riera J., Bosch J., Yamashita O., Kawashima R., Sadato N., Okada T., Ozaki T. fMRI activation maps based on the NN-ARx model. NeuroImage, 23, 2, 680-697, 2004.

Riera J., Watanabe J., Kazuki I., Naoki M., Aubert E., Ozaki T., Kawashima R. A state-space model of the hemodynamic approach: Non-linear filtering of BOLD signals. NeuroImage, 21, 2, 547-567, 2004.


System and Methods for the tomography of the primary electric current of the brain and the heart.
Authors: Valdés P., Riera J., Bosch J., Aubert E., Virue T., Morales F., Trujillo N., Fuentes M.E., Soler J.
OPIC, Canada. (A1) 2301712
US No. 7092748 B2
Japan P2001-514031A
European Patent Office (EPO): EP 1005677B1

Electroencephalographic electrode unit for small animals and measurement system using same
Authors:Riera, J., Sumiyoshi, A., Kawashima, R.
Hirayama Kokusai Tokkyo Jimusho
Japanese patent office – Application No.: 2010-98320
EPO – Application No.: 11772088.8 – 1265
US – Application No.: 13/641,834


Riera J. Biophysical Models: Neurovascular Coupling, Cortical Microcircuits, and Metabolism In: Encyclopedia of Computational Neuroscience. Springer, 1-15, 2014.

Riera J. Brain Imaging: Overview In: Encyclopedia of Computational Neuroscience. Springer, 1-3, 2014.

Riera J. What can be observed from functional neuroimaging? In: Complex Medical Engineering. (Eds: JL Wu, K Ito, S Tobimatsu, T Nishida, H Fukuyama). Springer, 313-333, 2007.


Wan X., Iwata K., Riera J., Kawashima R., Kitamura M. Step for Fusion of Electroencephalogram and Functional Magnetic Resonance Imaging: F131. J. Clinical Neurophysiology 22, 5, 363, 2005.

Riera J., R. Kawashima. P31.5 Concurrent EEG correlates of event-related and spontaneous fMRI: Implications for neural basis of functional imaging Clinical Neurophysiology 01/2006; 117:150-150.

Riera J., Jimenez J.C., Ozaki T., Kawashima R., Wan X.H. Nonlinear Local Neurovascular Coupling in the Cerebral Cortex. Neuroscience Research 58, S129-S129, Suppl. 1, 2007

Bosch Bayard J., Riera J., Biscay Lirio R., Wong K., Yamashita O., Valdés Sosa P.A., Ozaki T. Spatio-Temporal Correlations in fMRI Time Series: The Innovation Approach. Clinical Neurophysiology 119, 9, e137-e138, 2008.

Riera J., Goto T., Enjieu-Kadji H., Ogawa T., Morito R., Kawashima R. The Micro-Architecture of the Cerebral Cortex: Its Impact on Functional Neuroimaging in Humans. Clinical Neurophysiology 119, 9, e107, 2008.

Kato S., Goto T., Homma N., Yoshizawa M., Yomogida Y., Sassa Y., Sugiura M., Riera J., Kawashima, R. fMRI Analysis of the Human Brain Activities During Manual Control of a Nonholonomic System. Proceedings of the SICE Annual Conference, Article number 4654986, 1977-1980, 2008.

Riera J, Ogawa T, Goto T, Sumiyoshi A, Nonaka H, Evans A, Kawashima R. Pitfalls in the Dipolar Model of the Neocortical EEG Sources. Proceedings of the Second APSIPA Annual Summit and Conference, 964-968, 2010.


Riera J, Watanabe J, Kazuki I., Naoki M., Aubert E., Ozaki T., Kawashima R. A State-Space Model of the Balloon Approach: a Non-Linear Analysis of BOLD Signals. ISM Research Memorandum, No. 880. The Institute of Statistical Mathematics, Tokyo, Japan, 2003.

Riera J., Bosch J., Yamashita O., Kawashima R., Sadato N., Okada T., Ozaki T. fMRI Activation Maps based on the NN-ARx Model. ISM Research Memorandum, No. 906. The Institute of Statistical Mathematics, Tokyo, Japan, 2004.

Riera J., Aubert E., Iwata K., Kawashima R., Wan X., Ozaki T. Fusing EEG and fMRI based on a Bottom-Up Model: Inferring Activation and Effective Connectivity in Neural Masses. ISM Research Memorandum, No. 927. The Institute of Statistical Mathematics, Tokyo, Japan, 2004.

Wan X., Iwata K., Riera J., Kitamura M., Ozaki T., Kawashima R. Artifacts Reduction for EEG/fMRI Recordings. Part 1: Nonlinear Reduction of Ballistocardiogram Artifact. ISM Research Memorandum, No. 939. The Institute of Statistical Mathematics, Tokyo, Japan, 2005.

Bosch-Bayard J., Riera J., Biscay-Lirio R.J., Wong K.F.K., Yamashita O., Galka A., Sadato N., Kawashima R., Valdes-Sosa P., Miwakechi F., Ozaki T. Spatio-Temporal Correlations in fMRI Time Series: the Whitening Approach. ISM Research Memorandum, No. 1025, The Institute of Statistical Mathematics, Tokyo, Japan, 2007.

Roberto D. Pascual-Marqui, Rolando J. Biscay, Pedro A Valdes-Sosa, Jorge Bosch-Bayard, Jorge J. Riera-Diaz. Cortical current source connectivity by means of partial coherence fields. arXiv 08/2011, 2012.