Technical Talk Report on Assessment of Human Emotion by Functional near Infrared Spectroscopy (fNIRS)

The Resource person of the Technical Talk was Dr. K.Prahlad Rao Assoc. Professor, Electrical and Computer Engineering Dept., King Abdulaziz University, Jeddah, Saudi Arabia.

Around 90 students from the School of ECE attended the Technical Talk.

The Technical Talk focused on following key points:

• Functional Near-infrared spectroscopy (fNIRS) is an optical technique that can measure the changes in oxygenated and deoxygenated hemoglobin concentrations related to neuronal activation of the brain.
• Compared to X Ray CT, fMRI, PET and EEG; fNIRS is safe, non-invasive, cost-effective and compact in size.
• The light in the range of 650-1100 nm wavelength (NIR) can penetrate deep in to the tissue and the signal is detected by photodiodes.
• Light-tissue interactions
• Light Diffuses in Biological Tissue
• Principle of working: Beer-Lambert Law
• Modified Beer-Lambert Law
• Measurement of Multiple Chromophores
• Uses of NIRS
• Brain Imaging Modalities
• fNIRS Vs. fMRI
• Assessment of Human Emotion