Development of wearable optical topography system for mapping the prefrontal cortex activation

Hirokazu Atsumori, Masashi Kiguchi, Akiko Obata, Hiroki Satou, Takusige Katura, Tsukasa Funane, Atsushi Maki

Research output: Contribution to journalArticle

56 Citations (Scopus)

Abstract

Optical topography (OT) based on near infrared spectroscopy is effective for measuring changes in the concentrations of oxygenated hemoglobin (oxy-Hb) and deoxygenated hemoglobin (deoxy-Hb) in the brain. It can be used to investigate brain functions of subjects of all ages because it is noninvasive and less constraining for subjects. Conventional OT systems use optical fibers to irradiate the scalp and detect light transmitted through the tissue in the human head, but optical fibers limit the subject's head position, so some small systems have been developed without using optical fibers. These systems, however, have a small number of measurement channels. We developed a prototype of a small, light, and wearable OT system that covers the entire forehead. We measured changes in the concentrations of oxy-Hb and deoxy-Hb in the prefrontal cortex while a subject performed a word fluency task. The results show typical changes in oxy-Hb and deoxy-Hb during the task and suggest that the prototype of our system can be used to investigate functions in the prefrontal cortex.

Original languageEnglish
Article number043704
JournalReview of Scientific Instruments
Volume80
Issue number4
DOIs
Publication statusPublished - 2009 May 11
Externally publishedYes

Fingerprint

cortexes
Hemoglobin
hemoglobin
Topography
topography
Chemical activation
activation
Optical fibers
optical fibers
brain
Brain
forehead
prototypes
Near infrared spectroscopy
infrared spectroscopy
Tissue

ASJC Scopus subject areas

  • Instrumentation

Cite this

Development of wearable optical topography system for mapping the prefrontal cortex activation. / Atsumori, Hirokazu; Kiguchi, Masashi; Obata, Akiko; Satou, Hiroki; Katura, Takusige; Funane, Tsukasa; Maki, Atsushi.

In: Review of Scientific Instruments, Vol. 80, No. 4, 043704, 11.05.2009.

Research output: Contribution to journalArticle

Atsumori, Hirokazu ; Kiguchi, Masashi ; Obata, Akiko ; Satou, Hiroki ; Katura, Takusige ; Funane, Tsukasa ; Maki, Atsushi. / Development of wearable optical topography system for mapping the prefrontal cortex activation. In: Review of Scientific Instruments. 2009 ; Vol. 80, No. 4.
@article{1995714693ed401ab412b04b493ac60b,
title = "Development of wearable optical topography system for mapping the prefrontal cortex activation",
abstract = "Optical topography (OT) based on near infrared spectroscopy is effective for measuring changes in the concentrations of oxygenated hemoglobin (oxy-Hb) and deoxygenated hemoglobin (deoxy-Hb) in the brain. It can be used to investigate brain functions of subjects of all ages because it is noninvasive and less constraining for subjects. Conventional OT systems use optical fibers to irradiate the scalp and detect light transmitted through the tissue in the human head, but optical fibers limit the subject's head position, so some small systems have been developed without using optical fibers. These systems, however, have a small number of measurement channels. We developed a prototype of a small, light, and wearable OT system that covers the entire forehead. We measured changes in the concentrations of oxy-Hb and deoxy-Hb in the prefrontal cortex while a subject performed a word fluency task. The results show typical changes in oxy-Hb and deoxy-Hb during the task and suggest that the prototype of our system can be used to investigate functions in the prefrontal cortex.",
author = "Hirokazu Atsumori and Masashi Kiguchi and Akiko Obata and Hiroki Satou and Takusige Katura and Tsukasa Funane and Atsushi Maki",
year = "2009",
month = "5",
day = "11",
doi = "10.1063/1.3115207",
language = "English",
volume = "80",
journal = "Review of Scientific Instruments",
issn = "0034-6748",
publisher = "American Institute of Physics Publising LLC",
number = "4",

}

TY - JOUR

T1 - Development of wearable optical topography system for mapping the prefrontal cortex activation

AU - Atsumori, Hirokazu

AU - Kiguchi, Masashi

AU - Obata, Akiko

AU - Satou, Hiroki

AU - Katura, Takusige

AU - Funane, Tsukasa

AU - Maki, Atsushi

PY - 2009/5/11

Y1 - 2009/5/11

N2 - Optical topography (OT) based on near infrared spectroscopy is effective for measuring changes in the concentrations of oxygenated hemoglobin (oxy-Hb) and deoxygenated hemoglobin (deoxy-Hb) in the brain. It can be used to investigate brain functions of subjects of all ages because it is noninvasive and less constraining for subjects. Conventional OT systems use optical fibers to irradiate the scalp and detect light transmitted through the tissue in the human head, but optical fibers limit the subject's head position, so some small systems have been developed without using optical fibers. These systems, however, have a small number of measurement channels. We developed a prototype of a small, light, and wearable OT system that covers the entire forehead. We measured changes in the concentrations of oxy-Hb and deoxy-Hb in the prefrontal cortex while a subject performed a word fluency task. The results show typical changes in oxy-Hb and deoxy-Hb during the task and suggest that the prototype of our system can be used to investigate functions in the prefrontal cortex.

AB - Optical topography (OT) based on near infrared spectroscopy is effective for measuring changes in the concentrations of oxygenated hemoglobin (oxy-Hb) and deoxygenated hemoglobin (deoxy-Hb) in the brain. It can be used to investigate brain functions of subjects of all ages because it is noninvasive and less constraining for subjects. Conventional OT systems use optical fibers to irradiate the scalp and detect light transmitted through the tissue in the human head, but optical fibers limit the subject's head position, so some small systems have been developed without using optical fibers. These systems, however, have a small number of measurement channels. We developed a prototype of a small, light, and wearable OT system that covers the entire forehead. We measured changes in the concentrations of oxy-Hb and deoxy-Hb in the prefrontal cortex while a subject performed a word fluency task. The results show typical changes in oxy-Hb and deoxy-Hb during the task and suggest that the prototype of our system can be used to investigate functions in the prefrontal cortex.

UR - http://www.scopus.com/inward/record.url?scp=65449140556&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=65449140556&partnerID=8YFLogxK

U2 - 10.1063/1.3115207

DO - 10.1063/1.3115207

M3 - Article

VL - 80

JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

SN - 0034-6748

IS - 4

M1 - 043704

ER -