Cerebrovascular response to cognitive tasks in patients with schizophrenia measured by near-infrared spectroscopy.

  title={Cerebrovascular response to cognitive tasks in patients with schizophrenia measured by near-infrared spectroscopy.},
  author={Akira Watanabe and Tadafumi Kato},
  journal={Schizophrenia bulletin},
  volume={30 2},
We assessed the cerebral hemoglobin oxygenation response in the left frontal area in 62 schizophrenia patients and 31 healthy subjects during a verbal fluency test (VF) and letter number span test (LN) measured by near-infrared spectroscopy (NIRS). Oxygenated hemoglobin (oxyHb) increased during VF and LN in both groups. Schizophrenia patients showed lower VF and LN performance and a smaller increase in oxyHb during VF than controls. A reduced oxyHb response during VF in schizophrenia patients… CONTINUE READING


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