4) Kwee IL, Nakada T.: Dorsolateral prefrontal lobe activation declines significantly with age-functional NIRS study. J Neurol. 2003. 250(5): 525-9.
5) Watanabe A, Kato T.: Cerebrovascular response to cognitive tasks in patients with schizophrenia measured by near-infrared spectroscopy. Schizophr Bu11. 2004. 30 (2): 435-44.