We have developed a novel (patent pending) electric field measurement technology called Electric Field Encephalography (EFEG) for brain signal monitoring. NeuroFieldz technology is comprised of a system of high density array of sensors for measuring and analyzing the electric fields generated by the brain arising from intrinsic activity or external stimuli. The EFEG brain monitoring technique is a new modality that has several advantages over the current modalities, electroencephalography EEG (which measures the electric potential on the scalp) and magnetoencephalography MEG (which measures the magnetic field). Compared with MEG, EFEG has higher spatial resolution, is unaffected by stray magnetic fields, and does not require expensive bulky cryogenic equipment, thus making it field-deployable. Compared with EEG, EFEGTM is reference-less, has higher spatial resolution, leads to increased number of uncorrelated signals, and improves source reconstruction precision.  EFEG also provides dynamical information on millisecond time scales which is much faster than fMRI. The accurate source localization provided by EFEG will be of immense benefit in analyzing and localizing neurological signals (e.g. epileptic), as well as understanding the brains response to external stimuli

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Parimi, Patanjali; Zhai, Zhiyong; Hakim, Nazih; Kusko, Christian; Sridhar, Srinivas; Amerahl, Udo; Vietkine, A; Revcolevschi, A

Charge Polarization Dynamics of Spin-Ladder and Spin-Chain Sr-Cu-O Cuprates. Proceedings Article

In: APS Meeting Abstracts, 2000.

Abstract | Tags: Collective Excitations, Magnetism, Superconductivity

Reagor, D; Sridhar, S; Gruner, G

Inertial dynamics of pinned charge-density-wave condensates. I. NbSe 3 Journal Article

In: Physical Review B, vol. 34, no. 4, pp. 2212, 1986.

Abstract | Tags: Collective Excitations

Sridhar, S; Reagor, D; Gruner, G

Inertial dynamics of pinned charge-density-wave condensates. II. Orthorhombic TaS 3 Journal Article

In: Physical Review B, vol. 34, no. 4, pp. 2223, 1986.

Abstract | Tags: Collective Excitations

Sridhar, S; Mercereau, JE

Nonequilibrium dynamics of quasiparticles in superconductors Journal Article

In: Physical Review B, vol. 34, no. 1, pp. 203, 1986.

Abstract | Tags: Collective Excitations

Sridhar, S; Reagor, D; Gruner, G

Inertial Dynamics of Charge-Density Waves in Ta S 3 and Nb Se 3 Journal Article

In: Physical review letters, vol. 55, no. 11, pp. 1196, 1985.

Abstract | Tags: Collective Excitations

Reagor, D; Sridhar, S; Maki, M; Gruner, G

Inertial charge-density-wave dynamics in (TaSe 4) 2 I Journal Article

In: Physical Review B, vol. 32, no. 12, pp. 8445, 1985.

Abstract | Tags: Collective Excitations

Javadi, HHS; Sridhar, S; Grüner, G; Chiang, Long; Wudl, F

Giant conductivity resonance in the spin-density-wave state of an organic conductor Journal Article

In: Physical review letters, vol. 55, no. 11, pp. 1216, 1985.

Abstract | Tags: Collective Excitations

Sridhar, S; Reagor, D; Gruner, G

Complex conductivity measurements between 26 and 110 GHz using complex impedance bridges Journal Article

In: Review of scientific instruments, vol. 56, no. 10, pp. 1946–1952, 1985.

Abstract | Tags: Collective Excitations

Reagor, D; Sridhar, S; Grüner, G

Inertial dynamics of CDW transport in NbSe 3 Book Section

In: Charge Density Waves in Solids, pp. 308–310, Springer, Berlin, Heidelberg, 1985.

Tags: Collective Excitations

JAVADI, HHS; SRIDHAR, S; GRUNER, G; NALEVAJEK, L; COX, S; WUDL, F

SPIN-DENSITY WAVE RESPONSE IN (TMTSF) 2PF6 AND ITS ALLOYS Proceedings Article

In: MOLECULAR CRYSTALS AND LIQUID CRYSTALS, pp. 390–390, GORDON BREACH SCI PUBL LTD C/O STBS LTD, PO BOX 90, READING, BERKS, ENGLAND~… 1985.

Tags: Collective Excitations

REAGOR, D; SRIDHAR, S; GRUNER, G

THE HIGH-FREQUENCY LIMIT OF CHARGE-DENSITY CONDUCTION Proceedings Article

In: MOLECULAR CRYSTALS AND LIQUID CRYSTALS, pp. 414–414, GORDON BREACH SCI PUBL LTD C/O STBS LTD, PO BOX 90, READING, BERKS, ENGLAND~… 1985.

Tags: Collective Excitations