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A frequency multiplexed near-infrared topography system for imaging functional activation in the brain
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10.1063/1.2038567
/content/aip/journal/rsi/76/9/10.1063/1.2038567
http://aip.metastore.ingenta.com/content/aip/journal/rsi/76/9/10.1063/1.2038567
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Block diagram of laser sources.

Image of FIG. 2.
FIG. 2.

Block diagram of detector.

Image of FIG. 3.
FIG. 3.

An example of an FFT of the data from one detector.

Image of FIG. 4.
FIG. 4.

Geometry of optical fiber array.

Image of FIG. 5.
FIG. 5.

Liquid Phantom—the optical fiber array is attached to the front face.

Image of FIG. 6.
FIG. 6.

3D reconstruction of liquid phantom experiment. The columns show the image at intervals of and the rows show slices at increasing depths through the image—, , and .

Image of FIG. 7.
FIG. 7.

A thermoplastic optical fiber array for adult motor cortex experiments.

Image of FIG. 8.
FIG. 8.

Data from one source-detector pair of separation . The graph shows changes in oxy-, deoxy-, and total haemoglobin over a period of . The horizontal grey bar shows the period of finger tapping.

Image of FIG. 9.
FIG. 9.

A topographic image showing activation of the motor cortex. This image predominantly shows an increase in absorption of 40% at due to an increase in blood volume in the motor cortex.

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/content/aip/journal/rsi/76/9/10.1063/1.2038567
2005-09-02
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: A frequency multiplexed near-infrared topography system for imaging functional activation in the brain
http://aip.metastore.ingenta.com/content/aip/journal/rsi/76/9/10.1063/1.2038567
10.1063/1.2038567
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