For most people, seeing is the primary sense. Around 60 per cent of environmental experience enters our brains through our eyes. But between the moment photons enters the optic nerve and an image appears in our consciousness are multiple neural processes. Is the result a representation of the external world or a construct? The talk provides an answer to this question by taking a journey through the world of optical illusions, from physics to psychology and art. In doing so, it identifies specific processes that alter and modify the images we see.
Alexander Strahl studied physics with a minor in philosophy at the Technische Universität Braunschweig. In 2006 he completed his Ph.D. in physics. From 2008 to 2014 he served as lecturer at the Institute for Natural Sciences Education at the Technische Universität Braunschweig. Since 2014 he has been an assistant professor at the School of Education at the University of Salzburg, where he directs the working group on physics education. He has written numerous essays and is co-author of Fachdidaktik der Naturwissenschaften unter besonderer Berücksichtigung der Physik (2014) and the Neues Handbuch zur Philosophie (2005). In 2016 he coedited Naturwissenschaften vermitteln: Von der frühen Kindheit bis zum Lehrerberuf.