Consiglio Nazionale delle Ricerche

Tipo di prodottoArticolo in rivista
TitoloMagnetic stimulation of the motor cortex - Theoretical considerations
Anno di pubblicazione1991
Formato
  • Elettronico
  • Cartaceo
Autore/iGrandori F., Ravazzani P.
Affiliazioni autoriCentro per lo Studio della Teoria dei Sistemi CTS CNR, Milano
Autori CNR e affiliazioni
  • FERDINANDO GRANDORI
  • PAOLO GIUSEPPE RAVAZZANI
Lingua/e
  • inglese
AbstractThe aim of this paper is to present a first approximation model for the computation of the electric fields produced in the brain tissues by magnetic stimulation. Results are given in terms of induced electric field and current density caused by coils of different radii and locations. Nontraditional coil locations and assemblies are also considered (multicoil arrangements). Model simulations show that a good control of the excitation spread can be achieved by proper positioning of the coil. It is also predicted that one of the major drawbacks of the technique, i.e., the poor ability to concentrate the current spread into a small brain area can be partially overcome by more effective coil positioning and/or assembly. Finally, some comparisons are made among the results obtained from electric and magnetic stimulation. This is thought to be of great help in the design of experiments aimed to understand the relative role of the different brain structures responsible for the motor response. An approximation model for the computation of the electric fields produced in the brain tissues by magnetic stimulation is presented. Results are given in terms of induced electric field and current density caused by coils of different radii and locations. Nontraditional coil locations and assemblies are also considered (multicoil arrangements). Model simulations show that a good control of the excitation spread can be achieved by proper positioning of the coil. It is also predicted that one of the major drawbacks of the technique, (i.e., the poor ability to concentrate the current spread into a small brain area) can be partially overcome by more effective coil positioning and/or assembly. Some comparisons are made among the results obtained from electric and magnetic stimulation. This is thought to be helpful in the design of experiments aimed at understanding the relative role of different brain structures responsible for the motor response.
Lingua abstractinglese
Altro abstract-
Lingua altro abstract-
Pagine da180
Pagine a191
Pagine totali-
RivistaIEEE transactions on biomedical engineering (Print)
Attiva dal 1964
Editore: Institute of Electrical and Electronics Engineers, - New York, N.Y.
Paese di pubblicazione: Stati Uniti d'America
Lingua: inglese
ISSN: 0018-9294
Titolo chiave: IEEE transactions on biomedical engineering (Print)
Titolo proprio: IEEE transactions on bio-medical engineering (Print)
Titolo abbreviato: IEEE trans. biomed. eng. (Print)
Titoli alternativi:
  • Institute of Electrical and Electronics Engineers transactions on bio-medical engineering (Print)
  • IEEE transactions on biomedical engineering (Print)
  • Transactions on bio-medical engineering (Print)
Numero volume della rivista38
Fascicolo della rivista2
DOI10.1109/10.76385
Verificato da refereeSì: Internazionale
Stato della pubblicazione-
Indicizzazione (in banche dati controllate)
  • ISI Web of Science (WOS) (Codice:A1991FF90600010)
  • Scopus (Codice:s2.0-0026104881)
Parole chiaveBrain Tissue Stimulation, Faraday's Law, Induced Electric Field, Magnetic Stimulation, Motor Cortex
Link (URL, URI)http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=76385
Titolo parallelo-
Data di accettazione-
Note/Altre informazioni-
Strutture CNR
  • IEIIT — Istituto di elettronica e di ingegneria dell'informazione e delle telecomunicazioni
Moduli CNR-
Progetti Europei-
Allegati
  • 1991 Grandori and Ravazzani