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Brain Imaging

Brain Imaging

Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans), magnetic resonance imaging (MRI), functional magnetic resonance imaging (fMRI), and Transcranial Magnetic Stimulation (TMS).

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Cerebral Blood Flow-Based Resting State Functional Connectivity of the Human Brain using Optical Diffuse Correlation Spectroscopy

Cerebral Blood Flow-Based Resting State Functional Connectivity of the Human Brain using Optical Diffuse Correlation Spectroscopy

Published on: May 27, 2020

Long-wave infrared functional brain imaging in human: a pilot study.

Christian C Joyal¹, Mylene Henry

¹Université du Québec à Trois-Rivières, Canada ; Institut Philippe-Pinel de Montréal, Canada.

The Open Neuroimaging Journal

|February 13, 2013

Summary

Long-Wave Infrared (LWIR) sensors may detect brain activity. This pilot study found frontal LWIR emissions varied with mental effort during cognitive tasks, suggesting a new brain imaging method.

Keywords:

Long-wave brain imaging.infrared passive

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Last Updated: May 14, 2026

Cerebral Blood Flow-Based Resting State Functional Connectivity of the Human Brain using Optical Diffuse Correlation Spectroscopy

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Published on: May 27, 2020

Using Fiberless, Wearable fNIRS to Monitor Brain Activity in Real-world Cognitive Tasks

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Published on: December 2, 2015

Exploring Cognitive Functions in Babies, Children & Adults with Near Infrared Spectroscopy

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Published on: July 28, 2009

Area of Science:

Neuroscience
Psychophysiology

Background:

The use of Long-Wave Infrared (LWIR) sensors for assessing brain function is proposed but lacks established links to mental effort.
Understanding the relationship between thermal emissions and cognitive load is crucial for developing novel neuroimaging techniques.

Purpose of the Study:

To investigate if frontal LWIR emissions differ during neuropsychological tasks known to activate the prefrontal cortex.
To explore the potential of LWIR imaging as a non-invasive tool for measuring brain activity related to cognitive effort.

Main Methods:

A pilot study involving 47 participants executing three distinct cognitive tasks: simple color presentation, Stroop effect induction, and a real-money gambling task.
Bilateral frontal sensors were used to measure LWIR emissions during task performance, with counterbalanced task presentation order.

Main Results:

Frontal LWIR emissions significantly differed between the cognitive tasks.
The observed differences followed the expected pattern of increasing thermal emissions with higher cognitive demand (Color < Stroop < Gambling).

Conclusions:

This pilot study provides preliminary evidence that frontal LWIR emissions correlate with mental effort.
LWIR imaging shows promise as a simple, accessible method for evaluating prefrontal cortex activation and warrants further investigation for convergent validity with established neuroimaging techniques.