This paper derives an analytical model for investigating the effect of the distribution of
absorbers upon light attenuation in a scattering medium. Results from this are found to …

We have measured the changes in oxy-haemoglobin and deoxy-haemoglobin in the adult
human brain during a brief finger tapping exercise using near-infrared spectroscopy (NIRS) …

Near infrared (IR) spectroscopy can give continuous, direct information about cerebral
oxygenation in vivo by providing signals from oxygenated and deoxygenated haemoglobin …

In the brain of the adult rat, the ratio of the absorption coefficient of hemoglobin to that of the
cytochromes is approximately ten and in the newborn rat brain the ratio is even higher …

In five healthy human subjects, near-infrared spectroscopy (NIRS) and positron emission
tomography (PET) examinations were performed simultaneously. Changes in [oxy …

The relative transparency of tissues to near infrared light means that it is possible to
transilluminate intact organs. In the infrared region, oxygen dependent absorptions due to …

The use of optical spectroscopy for the non-invasive monitoring of tissue oxygenation and
metabolism is well established (Chance et al., 1975). Historically because of the high …

Brain activity is associated with changes in optical properties of brain tissue. Optical
measurements during brain activation can assess haemoglobin oxygenation, cytochrome-c …

Animal model studies indicate light-absorption changes of the exposed animal brain in
response to visual stimulation. Here we report observations of red-light absorbance …

An investigation of light transport through scattering bodies with non-scattering regions Page 1
Physics in Medicine & Biology An investigation of light transport through scattering bodies with …