Nagahisa Okamoto

Frontal and right temporal activations correlate negatively with depression severity during verbal fluency task: A multi-channel near-infrared spectroscopy study

Takamasa Noda, Sumiko Yoshida, Taro Matsuda et al. · Journal of Psychiatric Research · 2012 · 161 citations · Full text

Social Sciences, Neuroscience, Psychology +14

Rapid Antidepressant Effect of Ketamine Anesthesia During Electroconvulsive Therapy of Treatment-Resistant Depression

Nagahisa Okamoto, Tetsuji Nakai, Kota Sakamoto et al. · Journal of Ect · 2010 · 151 citations

Medicine, Anesthesiology, Psychiatry +16

Assessment of cerebral blood flow findings using 99mTc-ECD single-photon emission computed tomography in patients diagnosed with major depressive disorder

Yuko Nagafusa, Nagahisa Okamoto, Kota Sakamoto et al. · Journal of Affective Disorders · 2012 · 61 citations

Medicine, Neuroscience, Psychiatry +16

Difference in Temperament and Character Inventory scores between depressed patients with bipolar II and unipolar major depressive disorders

Daimei Sasayama, Hiroaki Hori, Toshiya Teraishi et al. · Journal of Affective Disorders · 2011 · 38 citations · Full text

Social Sciences, Psychiatry, Psychology +17

Transient Serotonin Syndrome by Concurrent Use of Electroconvulsive Therapy and Selective Serotonin Reuptake Inhibitor: A Case Report and Review of the Literature

Nagahisa Okamoto, Kota Sakamoto, Maki Yamada · Case Reports in Psychiatry · 2012 · 24 citations · Full text

Medicine, Pharmacotherapy, Psychiatry +17