Results 51 to 60 of about 19,313 (242)

Editorial Special Section on Biomedical Diffuse Optics for the Brain

open access: yesIEEE Open Journal of Engineering in Medicine and Biology, 2023
This special section collects four articles on the application of diffuse optics to measure cerebral hemodynamics and oxygenation. The possibility of using near-infrared light to collect cerebral hemodynamic and metabolic information through the intact ...
Sergio Fantini
doaj   +1 more source

A functional near infrared spectroscopy (fNIRS) replication of the sunscreen persuasion paradigm

open access: goldSocial Cognitive and Affective Neuroscience, 2018
Activity in medial prefrontal cortex (mPFC) during persuasive messages predicts future message-consistent behavior change, but there are significant limitations to the types of persuasion processes that can be invoked inside an MRI scanner. For instance, real world persuasion often involves multiple people in conversation.
Shannon M. Burns   +5 more
openalex   +4 more sources

Quality control and assurance in functional near infrared spectroscopy (fNIRS) experimentation [PDF]

open access: yesPhysics in Medicine and Biology, 2010
Functional near infrared spectroscopy (fNIRS) is a rapidly developing neuroimaging modality for exploring cortical brain behaviour. Despite recent advances, the quality of fNIRS experimentation may be compromised in several ways: firstly, by altering the optical properties of the tissues encountered in the path of light; secondly, through adulteration ...
Orihuela-Espina, F   +4 more
openaire   +4 more sources

Emotional modulation of visual cortex activity: A functional nearinfrared spectroscopy study [PDF]

open access: yes, 2009
Functional neuroimaging and electroencephalography reveal emotional effects in early visual cortex. Here, we used fNIRS to examine haemodynamic responses evoked by neutral, positive and negative emotional pictures, matched for brightness, contrast, hue,
Gray, Marcus A.   +3 more
core   +2 more sources

Mental workload classification using convolutional neural networks based on fNIRS-derived prefrontal activity

open access: yesBMC Neurology, 2023
Background Functional near-infrared spectroscopy (fNIRS) is a tool to assess brain activity during cognitive testing. Despite its usefulness, its feasibility in assessing mental workload remains unclear. This study was to investigate the potential use of
Jin-Hyuck Park
doaj   +1 more source

Measuring Cerebral Activation From fNIRS Signals: An Approach Based on Compressive Sensing and Taylor-Fourier Model [PDF]

open access: yes, 2016
Functional near-infrared spectroscopy (fNIRS) is a noninvasive and portable neuroimaging technique that uses NIR light to monitor cerebral activity by the so-called haemodynamic responses (HRs).
Brigadoi, Sabrina   +4 more
core   +1 more source

A Motion Artifact Correction Procedure for fNIRS Signals Based on Wavelet Transform and Infrared Thermography Video Tracking

open access: yesSensors, 2021
Functional near infrared spectroscopy (fNIRS) is a neuroimaging technique that allows to monitor the functional hemoglobin oscillations related to cortical activity.
David Perpetuini   +4 more
doaj   +1 more source

Age-related changes in global motion coherence: conflicting haemodynamic and perceptual responses [PDF]

open access: yes, 2018
Our aim was to use both behavioural and neuroimaging data to identify indicators of perceptual decline in motion processing. We employed a global motion coherence task and functional Near Infrared Spectroscopy (fNIRS). Healthy adults (n = 72, 18-85) were
A Arena   +93 more
core   +4 more sources

Brain oxygenation patterns during the execution of tool use demonstration, tool use pantomime, and body-part-as-object tool use [PDF]

open access: yes, 2015
© 2015 Elsevier B.V. Divergent findings exist whether left and right hemispheric pre- and postcentral cortices contribute to the production of tool use related hand movements. In order to clarify the neural substrates of tool use demonstrations with tool
Helmich, Ingo   +3 more
core   +2 more sources

Recent Developments in Instrumentation of Functional Near-Infrared Spectroscopy Systems

open access: yesApplied Sciences, 2020
In the last three decades, the development and steady improvement of various optical technologies at the near-infrared region of the electromagnetic spectrum has inspired a large number of scientists around the world to design and develop functional near-
Murad Althobaiti, Ibraheem Al-Naib
doaj   +1 more source

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