Yuta Murayama

  • Citations Per Year
Learn More
In order to clarify the central mechanism controlling respiratory rate during mental stress, we examined the relation between prefrontal cortex (PFC) activity and respiratory rate during mental arithmetic (MA) tasks. Employing two-channel near-infrared spectroscopy (NIRS), we measured hemoglobin (Hb) concentration changes in the bilateral PFC during MA(More)
We evaluated relationship between cognitive function and cerebral blood oxygenation (CBO) of the prefrontal cortex (PFC) at rest in 113 adults (age 72.3 ± 12.0 years). We employed a two channel time-resolved near-infrared spectroscopy (TRS), which allows non-invasive measurements of baseline concentrations of oxyhemoglobin (oxy-Hb), deoxyhemoglobin(More)
Pyrroloquinoline quinone (PQQ) is a quinone compound originally identified in methanol-utilizing bacteria and is a cofactor for redox enzymes. At the Meeting of the International Society on Oxygen Transport to Tissue (ISOTT) 2014, we reported that PQQ disodium salt (BioPQQ™) improved cognitive function in humans, as assessed by the Stroop test. However, the(More)
  • 1