Endel Põder's web page

 Research topics

 My research interests

I am trying to understand how vision works. I think that detection and recognition of patterns are the most essential in vision. Thus, I am interested in almost everything from simple feature detectors to mechanisms behind recognition and categorization of objects and scenes.
There is much more information in the visible world than we ever are able or need to use. An important function of any visual system is to select the important and ignore irrelevant aspects of the visual world. The mechanisms that mediate the selection are named “attention”. Actually, almost all my studies are in some way related to attention. Another frequent keyword is “crowding” - deterioration of perception when several objects are located close to each other, usually in peripheral vision.
My usual methods are psychophysical experiments and mathematical or computational modeling. But I believe that neurobiological studies are at least equally important.
When could we say that we have understood vision? I have suggested that when we can (at least in principle) build a machine or write a computer program that could orient in the visual world as effectively as humans, monkeys and other living creatures. There is not much remained to be done, however, because some neural network algorithms are quite close to the human performance in object recognition already.

 Selected publications

 Conference presentations (not published as articles)

 A letter on a curious bias in the measurement of scientific performance

Põder, E. (2010). Let’s correct that small mistake. Journal of the American Society for Information Science & Technology, 61(12), 2593-2594. Article

Calculation of unbiased indicators from ISI Web of Knowledge reports. Program

 Contact info


Institute of Psychology
University of Tartu
Näituse 2
50409 Tartu

phone: +372 56215437
fax: +372 7376152

Most recent update: November 6, 2014