Our results indicate group differences in cortical electrophysiological and haemodynamic activation that represent rather general impairments in the processing of complex language. Simultaneous EEG/NIRS applications are useful to depict these neural markers and to investigate their relationship. Future studies are needed to clarify the nature of respective anomalies and their potential as putative neural markers in schizophrenia research.
As a non-invasive, optical-based imaging method, functional near infrared (fNIR) spectroscopy can be beneficially applied to investigate the oxygenation level of cortical brain tissue. Unlike other visible wavelengths, light from the near infrared spectrum is able to penetrate the skullcap and is essentially absorbed by two specific chromophores [oxygenated-(O 2 Hb) and deoxygenated haemoglobin (HHb)] within the brain.
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