USA flag logo/image

An Official Website of the United States Government

Distributed Statistical Source Localization

Award Information

Agency:
Department of Health and Human Services
Branch:
N/A
Award ID:
29647
Program Year/Program:
1995 / SBIR
Agency Tracking Number:
29647
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Electrical Geodesics, Inc.
500 E. 4th Ave Second Floor EUGENE, OR -
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1995
Title: Distributed Statistical Source Localization
Agency: HHS
Contract: 1 R43 NS34598-01,
Award Amount: $98,735.00
 

Abstract:

Advances in dense sensor array measurement of brain electrical activity promise new insights into tthe human brain. This project develops Sourcerer(R), an innovative software package for distributedanalysis of Electroencephalographic (BEG) and Event-Related Potential (BRP) data. Whereas conventionmodels approximate gross regions of the brain, Sourcerer will characterize distributed source configareas of cortex. Drawing from other Electrical Geodesics Incorporated (EGI) software, anatomic constmagnetic resonance imaging (MRI) will be available for the source modeling. Three optimization technevaluated in Phase I: polytope algorithm, simulated annealing, and Bayesian estimation. As its namerequires a skilled user for accurate results. Like any other electrical source analysis software, itneural sources rather than exact measurements. Unlike any existing approach, however, Sourcerer willcheck on its results: a Bayesian analysis of the statistical reliability of each source solution. Aerrors due to model misspecification and finite sampling of head electric fields will guide this vallocalization solutions and interpretations will be guided by the high spatial resolution yielded byLaplacian) estimates.

Principal Investigator:

K Eriksen
50387

Business Contact:

Small Business Information at Submission:

Electrical Geodesics, Inc.
1811 Garden Avenue, Suite 104 Eugene, OR 97403

EIN/Tax ID:
DUNS: N/A
Number of Employees: N/A
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No