Analysis of near infrared Spectroscopy as a tool to study the Brain activity during cognitive tasks

Abstract

Functional analysis of brain is one of the major areas of research newlinein cognitive neuroscience Cognitive neuroscience is the study of the human newlinebrain which is able to perform a variety of tasks including simple tasks such newlineas perceiving a colour and much more complex tasks as learning recall and newlinebehaviour Functional neuroimaging uses recent technologies to visualize newlinequalitative as well as measure quantitative aspects of functional activities of newlinethe brain The main aim of the functional analysis of brain is to understand the newlinerelationships between activity in a particular portion of the brain and a newlinespecific task stimulus cognition behaviour or neural process newlineElectroencephalography EEG and Magnetoencephalography MEG newlinemeasure localized electrical or magnetic fluctuations in neuronal activity newlinePositron Emission Tomography PET Functional Magnetic Resonance newlineImaging fMRI and NearInfrared Spectroscopy NIRS measure localized newlinechanges in cerebral blood flow related to neural activity PET and fMRI newlinetogether constitute established functional neuroimaging modalities newline newline