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Lecture/Seminar Human Optophysiology 2013-09-13 15:00:00

Speaker: Kyle Mathewson, Beckman Institute Postdoctoral Fellow at the University of Illinois at Urbana-Champaign and in the Department of Psychology at the University of Alberta.


Why is all human skin tinted red? Biological molecules selectively absorb and scatter light of particular wavelengths. Interestingly, human biological tissue for the most part is transparent to light in the near-infrared range (650-1000 nm), providing what is essentially a window, through which we can peer to better understand human physiological function. For example, we use near-infrared laser diodes to illuminate the human cortex, and measure the properties of the diffused light to estimate hemodynamic and neuronal activity. We have recently shown that optical brain imaging can measure coherent oscillatory alpha activity associated with attention. Recent advances in flexible electronics have provided the opportunity to develop less invasive and more portable optical imaging devices. We have performed early tests of this developing technology in cognitive tasks. Finally, since we are constantly being illuminated with natural and artificial light from a variety of sources, it may be possible to reconstruct some aspect of physiology from a simple video of an individual. Perhaps we are all performing Optophysiolgy when we look at each other.


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Times 15:00:00 to 16:20:00

Free and open to public

Sponsor Stephen Lindsay
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