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CATEGORIES:Cambridge Philosophical Society
SUMMARY:Seeing in three dimensions: philosophical issues a
 nd empirical findings - Professor Brian Rogers\, D
 epartment of Experimental Psychology\, University 
 of Oxford
DTSTART;TZID=Europe/London:20121105T173000
DTEND;TZID=Europe/London:20121105T183000
UID:TALK38541AThttp://talks.cam.ac.uk
URL:http://talks.cam.ac.uk/talk/index/38541
DESCRIPTION:It is often thought that there is something specia
 l and perhaps more difficult about our ability to 
 see the depth of 3-D objects and their spatial lay
 out as compared with other aspects of perception s
 uch as colour\, form or motion.  This has often be
 en attributed to the fact that our retinas are ess
 entially flat\, 2-D surfaces (e.g. Irvin Rock’s bo
 ok Perception 1984).  The idea can be traced back 
 to the philosopher\, George Berkeley who wrote in 
 his A New Theory of Vision (1709): “Distance of it
 self\, and immediately\, cannot be seen”.  More re
 cently\, TV manufacturers have tried to persuade u
 s to purchase 3-D TVs with the clear implication t
 hat conventional TVs do not allow us to see the th
 ird dimension.  In this lecture\, I want to addres
 s what I believe is a philosophical misunderstandi
 ng about the nature and purpose of perception whic
 h is often thought of as a process that provides a
 n internal representation (image\, picture) of the
  outside world.  Instead\, I shall consider the ro
 le of perception in an ecological context based on
  the availability of information.  I also want to 
 discuss the concept of ‘illusion’ and whether it i
 s possible to make a meaningful distinction betwee
 n those aspects of perception that are correct (ve
 ridical) and those that are illusory.  To do this\
 , I will consider the information provided by bino
 cular viewing (stereopsis)\, motion parallax and g
 eometric perspective in both art and normal viewin
 g.
LOCATION:Bristol-Myers-Squibb Lecture theatre\, Department 
 of Chemistry
CONTACT:philosoc
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