Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
The event-related optical signal: a new tool for studying brain function
Autore:
Gratton, G; Fabiani, M;
Indirizzi:
Univ Illinois, Beckman Inst, Urbana, IL 61801 USA Univ Illinois Urbana ILUSA 61801 ois, Beckman Inst, Urbana, IL 61801 USA
Titolo Testata:
INTERNATIONAL JOURNAL OF PSYCHOPHYSIOLOGY
fascicolo: 2, volume: 42, anno: 2001,
pagine: 109 - 121
SICI:
0167-8760(200110)42:2<109:TEOSAN>2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Soggetto:
NEAR-INFRARED SPECTROSCOPY; HUMAN OCCIPITAL CORTEX; IMAGE-RECONSTRUCTION; TIME-COURSE; SENSORY STIMULATION; PHOTIC-STIMULATION; VISUAL-STIMULATION; LIGHT-SCATTERING; CEREBRAL BLOOD; OXYGENATION;
Keywords:
functional brain imaging; optical imaging methods; event-related optical signal; EROS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Life Sciences
Citazioni:
67
Recensione:
Indirizzi per estratti:
Indirizzo: Gratton, G Univ Illinois, Beckman Inst, Urbana, IL 61801 USA Univ Illinois Urbana IL USA 61801 n Inst, Urbana, IL 61801 USA
Citazione:
G. Gratton e M. Fabiani, "The event-related optical signal: a new tool for studying brain function", INT J PSYCP, 42(2), 2001, pp. 109-121

Abstract

This paper presents an overview of a new method for the non-invasive measurement of brain function, the event-related optical signal (EROS). This technique is based on measures of the optical properties of cortical brain tissue, which change while the tissue is active. These changes are likely to be due to changes in light scattering, and are very rapid and localized, being related to phenomena occurring within or around the neuronal membrane. EROS, therefore yields images of cortical activity that combine spatial specificity (i.e. they can be related to patches of tissue less than a cubic centimeter in size) with temporal resolution (i.e. they depict the time course of the neural activity in the cortical areas under measurement). A limitation of this technique is its reduced penetration into the head (less than 3-5 cm). EROS appears to be a suitable technique for studying the time course of activity in selected cortical areas, and for providing a bridge between hemodynamic and electrophysiological imaging methods. (C) 2001 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/01/20 alle ore 06:17:55