A new Tel Aviv University study published in Current Biology suggests that noradrenaline, a neurotransmitter responsible for arousal in the brain, plays a vital role in our early sensory perceptions of the world.
"Until now, medical science believed that noradrenaline is involved in alertness, stress, attention and decision making," says senior author Dr. Yuval Nir, of TAU's Sackler Faculty of Medicine and Sagol School of Neuroscience. "Our study shows that, in fact, noradrenaline plays a vital role in earlier stages of perception, determining our ability to perceive events around us."
Research - Dr - Hagar - Gelbard-Sagiv - Efrat
The research was jointly led by Dr. Hagar Gelbard-Sagiv and Efrat Magidov of TAU's Sackler Faculty of Medicine and Sagol School of Neuroscience, in collaboration with Dr. Haggai Sharon and Prof. Talma Hendler of TAU and the Sagol Brain Institute at Tel Aviv Medical Center.
The scientists ran a series of experiments on 30 participants at the Sagol Brain Institute at Tel Aviv Medical Center. Subjects took part in three different sessions in which they received (1) drugs that lowered noradrenaline levels; (2) drugs that increased those levels; or (3) a placebo. After taking the medication, the participants were asked to perform visual tasks such as...
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