Brain Blood Volume Change Under an ESP Task Measured by Optical Topography

In the present study, we measured changes of oxygenated hemoglobin (oxy-Hb) and deoxygenated hemoglobin (deoxy-Hb) in the temporal lobes to identify the brain activities during ESP task by utilizing optical topography, a newly developed technique based on near-infrared photometry. The results of two males subjects varied in different trials. Although oxy-Hb and deoxy-Hb kept unchanged during ESP task and control conditions in most trial, in two trial, oxy-Hb increased remarkably and rapidly while deoxy-Hb decreased in the same way, with the right temporal lobe more significant than the left. Furthermore, the investigations of the subjects suggested the possible relation between this kind of changes and the subjective estimation about the results of ESP task.