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Gender- and handedness-related differences of forebrain oxygenation and hemodynamics.
TLDR
NIR results showed that a large majority of women used both sides of the brain when concentrating on carrying out the MDT, whilst most men, especially left-handers, reacted mainly using the hemisphere which was 'dominant' according to handedness.Citations
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A brief review on the history of human functional near-infrared spectroscopy (fNIRS) development and fields of application.
TL;DR: A brief historical overview of the events that have shaped the present status of fNIRS is presented, including the introduction of the commercial multi-channel systems, recent commercial wireless instrumentation and more advanced prototypes.
Journal ArticleDOI
Near-infrared spectroscopy: does it function in functional activation studies of the adult brain?
Hellmuth Obrig,Rüdiger Wenzel,Matthias Kohl,Susanne Horst,Petra Wobst,Jens Steinbrink,Florian Thomas,Arno Villringer +7 more
TL;DR: Results from a complex single-trial motor paradigm study testing the hypothesis, that premotor potentials can be examined by functional techniques relying on the vascular response are presented, and a rough mapping of this metabolic response over the motion-sensitive extrastriate visual area is demonstrated.
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Non-invasive functional mapping with multi-channel near infra-red spectroscopic topography in humans
TL;DR: Functional brain mapping is described using multi channel (ten channel) NIRS by applying the motor stimulation in humans to demonstrate that the regional hemodynamic change was detected in a small area around the motor cortex with a time resolution of 1-2 s.
Journal ArticleDOI
Left prefrontal activation predicts therapeutic effects of repetitive transcranial magnetic stimulation (rTMS) in major depression
Gerhard W. Eschweiler,Christine Wegerer,Wilfried Schlotter,Christoph Spandl,Andreas Stevens,Mathias Bartels,Gerhard Buchkremer +6 more
TL;DR: Clinical benefits of rTMS are predicted by low local hemodynamic responses and support the idea of activation-dependent targeting of r TMS location, and hemodynamic changes during mental work were evaluated by multi-site near-infrared spectroscopy.
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Prefrontal hemodynamic changes produced by anodal direct current stimulation
Anna Caterina Merzagora,Guglielmo Foffani,Ivan Panyavin,Laura Mordillo-Mateos,Juan Aguilar,Banu Onaral,Antonio Oliviero +6 more
TL;DR: The results help clarify the mechanisms underlying the regional alterations induced by tDCS and validate the use of fNIRS as a possible noninvasive method to monitor the neuromodulation effect of tDCS.
References
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Journal ArticleDOI
Noninvasive, infrared monitoring of cerebral and myocardial oxygen sufficiency and circulatory parameters
TL;DR: Observations by infrared transillumination in the exposed heart and in the brain in cephalo without surgical intervention show that oxygen sufficiency for cytochrome a,a3, function, changes in tissue blood volume, and the average hemoglobin-oxyhemoglobin equilibrium can be recorded effectively and in continuous fashion for research and clinical purposes.
Journal ArticleDOI
Focal physiological uncoupling of cerebral blood flow and oxidative metabolism during somatosensory stimulation in human subjects.
Peter T. Fox,Marcus E. Raichle +1 more
TL;DR: Dynamic, physiological regulation of CBF by a mechanism (neuronal or biochemical) dependent on neuronal firing per se, but independent of the cerebral metabolic rate of oxygen, is hypothesized.
Journal ArticleDOI
Sex differences in human brain asymmetry: a critical survey
TL;DR: This review provides a critical framework within which two related topics are discussed: Do meaningful sex differences in verbal or spatial cerebral lateralization exist?
Journal ArticleDOI
Characterization of the near infrared absorption spectra of cytochrome aa3 and haemoglobin for the non-invasive monitoring of cerebral oxygenation.
TL;DR: The cytochrome aa3 spectrum in vivo from the brains of rats after replacing the blood with a fluorocarbon substitute is obtained and an algorithm for calculating the changes in oxygenated and deoxygenated haemoglobin and oxygenated cy tochrome a a3 in tissue from changes in near IR absorption is constructed.
Journal ArticleDOI
Quantification of cerebral oxygenation and haemodynamics in sick newborn infants by near infrared spectrophotometry.
TL;DR: NIR spectrophotometry provides valuable quantitative data at the cotside for the management of sick infants and for exploring the pathophysiology of damage to the brain.
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Noninvasive, infrared monitoring of cerebral and myocardial oxygen sufficiency and circulatory parameters
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