Cognition and the Brain: A Continuation of the University Research Initiative at New York University
Abstract
The main focus of this project was the make use of magneto encephalographic (MEG) measures of brain activity to determine how the brain's neural resources are deployed during various cognitive tasks entailing different degrees of mental workload. Our laboratory pioneered this field, and the methods it devised are presently in wide use in clinical applications, as well as in other research laboratories. We initiated the use of a simple procedure to fit observed extracranial field patterns to fields that would be produced by equivalent current dipoles. The ideal dipole's position, orientation and strength (current dipole moment) was adjusted until its field pattern matched that of the observed pattern. This is a primitive form of what we now refer to as Magnetic Source Imaging (MSI). It is still the basic method in clinical applications, but a more sophisticated form of MSI is now emerging, largely as a result of work on this project.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 19, 1993
- Accession Number
- ADA271872
Entities
People
- Lloyd Kaufman
Organizations
- New York University