Various factors, including variations in the concentration of hemoglobin, determine changes
in the transparency of living tissue to near‐infrared light. Hence, optical measures have …

A new set of techniques allows for the study of brain function by near‐infrared light,
exploiting two optical phenomena: Changes in light absorption are determined by changes …

Recent theories about human brain function emphasize the need for imaging methods that
allow the study of dynamic interactions among different structures. In this paper, we report on …

Non–invasive techniques for the study of human brain function based on changes of the
haemoglobin content or on changes of haemoglobin saturation have recently been …

Near-infrared spectroscopy and imaging are powerful tools to detect and continuously
monitor the cerebral hemodynamic and oxygenation changes induced by brain activity …

Measures of parameters of the migration of near-infrared photons through the head
(attenuation, or intensity, and time-of-flight, or delay) have been proposed as a way of …

We review our most recent results on near-IR studies of human brain activity, which have
been evolving in two directions: detection of neuronal signals and measurements of …

In this chapter, we review the use of noninvasive optical imaging methods in studying
human brain function, with a view toward their possible applications to neuroergonomics …

The present paper demonstrates functional brain mapping with an optical imaging technique
by using tissue-transparent near-infrared light. With a maximal five-channel optical …

This paper presents an overview of a new method for the non-invasive measurement of
brain function, the event-related optical signal (EROS). This technique is based on …