Absolute quantification of oxygenated hemoglobin within the visual cortex with infrared spectroscopy (fNIRS)

Michelle McIntosh; Uma Shahani; Richard G. Boulton; Daphne L. McCulloch

Absolute quantification of oxygenated hemoglobin within the visual cortex with infrared spectroscopy (fNIRS)

Michelle McIntosh, Uma Shahani, Richard G. Boulton, Daphne L. McCulloch

Vision Sciences

Research output: Contribution to journal › Article › peer-review

47 Citations (Scopus)

Abstract

The purpose of this research was to examine absolute changes in oxygenated (HbO) and deoxygenated (Hb) hemoglobin concentrations over the visual cortex in response to visual stimulation. Before this study, only relative changes have been reported at the visual cortex. Near infrared spectroscopy (NIRS) can be used to assess changes in hemoglobin concentration in tissue. A frequency domain oximeter with a specially designed probe was placed over the visual cortex while the participant viewed a checkerboard stimulus. The stimulus was alternated at 7.5 Hz for 30 seconds before being replaced by a control gray screen.

Original language	English
Pages (from-to)	4856-4860
Number of pages	5
Journal	Investigative Ophthalmology and Visual Science
Volume	51
Issue number	9
Publication status	Published - 1 Mar 2010

Keywords

haemoglobin
vision sciences
visual cortex

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Cite this

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title = "Absolute quantification of oxygenated hemoglobin within the visual cortex with infrared spectroscopy (fNIRS)",

abstract = "The purpose of this research was to examine absolute changes in oxygenated (HbO) and deoxygenated (Hb) hemoglobin concentrations over the visual cortex in response to visual stimulation. Before this study, only relative changes have been reported at the visual cortex. Near infrared spectroscopy (NIRS) can be used to assess changes in hemoglobin concentration in tissue. A frequency domain oximeter with a specially designed probe was placed over the visual cortex while the participant viewed a checkerboard stimulus. The stimulus was alternated at 7.5 Hz for 30 seconds before being replaced by a control gray screen.",

keywords = "haemoglobin, vision sciences, visual cortex",

author = "Michelle McIntosh and Uma Shahani and Boulton, {Richard G.} and McCulloch, {Daphne L.}",

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AU - Shahani, Uma

AU - Boulton, Richard G.

AU - McCulloch, Daphne L.

N1 - <p>Originally published in: Investigative Ophthalmology and Visual Science (2010), 51 (9), pp.4856-4860.</p>

PY - 2010/3/1

Y1 - 2010/3/1

N2 - The purpose of this research was to examine absolute changes in oxygenated (HbO) and deoxygenated (Hb) hemoglobin concentrations over the visual cortex in response to visual stimulation. Before this study, only relative changes have been reported at the visual cortex. Near infrared spectroscopy (NIRS) can be used to assess changes in hemoglobin concentration in tissue. A frequency domain oximeter with a specially designed probe was placed over the visual cortex while the participant viewed a checkerboard stimulus. The stimulus was alternated at 7.5 Hz for 30 seconds before being replaced by a control gray screen.

AB - The purpose of this research was to examine absolute changes in oxygenated (HbO) and deoxygenated (Hb) hemoglobin concentrations over the visual cortex in response to visual stimulation. Before this study, only relative changes have been reported at the visual cortex. Near infrared spectroscopy (NIRS) can be used to assess changes in hemoglobin concentration in tissue. A frequency domain oximeter with a specially designed probe was placed over the visual cortex while the participant viewed a checkerboard stimulus. The stimulus was alternated at 7.5 Hz for 30 seconds before being replaced by a control gray screen.

KW - haemoglobin

KW - vision sciences

KW - visual cortex

M3 - Article

SN - 1552-5783

VL - 51

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EP - 4860

JO - Investigative Ophthalmology and Visual Science

JF - Investigative Ophthalmology and Visual Science

IS - 9

ER -

Absolute quantification of oxygenated hemoglobin within the visual cortex with infrared spectroscopy (fNIRS)

Abstract

Keywords

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