This is the classic GilChrist study: http://nwkpsych.rutgers.edu/~alan/Gilchrist_Science_1977.pdf
It is a lightness and color constancy experiment In the experiment above, people looked through a peephole into a set up which had 2 rooms. The front room was dark and the back room was lit. A white card was placed in the dark room. If people saw the white card in the dark room - they identified it as white but if they perceived it being in the lit room even though it was in the dark room, they saw it as grey. Deborah Briihl, PhD Dept. of Psychology and Counseling Valdosta State University 229-333-5994 [email protected] ________________________________________ From: Mike Palij <[email protected]> Sent: Friday, February 27, 2015 9:13 AM To: Teaching in the Psychological Sciences (TIPS) Cc: Michael Palij Subject: [tips] Is This Dress Red And Green? The internet was caught up in a frenzy yesterday -- no, I'm not referring to the llama video -- but about an optical illusion that people did not realize was an optical illusion. Indeed, it was an amazing demonstration of how unquestioning a person can be of their perception of things in the environment as well as the degree of overconfidence they have in their own judgments. To see where you fall, check out the dress at the following link and then select one of the multiple choice answers: http://swiked.tumblr.com/post/112158479910/trinititties-snacksandharts-swiked (a) The dress is red and green (b) The dress is white and gold (c) The dress is blue and black/brown (d) What dress? Now, the explanations I've seen for this phenomenon hasn't been completely satisfactory because they tend to be vague and don't use the combined trichromaticity theory-opponent process theory we all are familiar. For one source of explanation, see the story on the Wired website: http://www.wired.com/2015/02/science-one-agrees-color-dress/ and http://www.washingtonpost.com/news/morning-mix/wp/2015/02/27/the-inside-story-of-the-white-dress-blue-dress-drama-that-divided-a-nation/ A less neuroscience-ish explanation is provided here: http://sploid.gizmodo.com/this-is-the-real-color-of-that-goddamn-white-and-gold-d-1688381523 and http://sploid.gizmodo.com/this-is-the-real-color-of-that-goddamn-white-and-gold-d-1688381523 So, which of the multiple choice answers is correct? Why, (d) of course. .;-) Now, where are those llama videos? -Mike Palij New York University [email protected] --- You are currently subscribed to tips as: [email protected]. To unsubscribe click here: http://fsulist.frostburg.edu/u?id=13162.50de294b9d4987a3c89b4a5cc4bdea62&n=T&l=tips&o=42336 or send a blank email to leave-42336-13162.50de294b9d4987a3c89b4a5cc4bde...@fsulist.frostburg.edu --- You are currently subscribed to tips as: [email protected]. To unsubscribe click here: http://fsulist.frostburg.edu/u?id=13090.68da6e6e5325aa33287ff385b70df5d5&n=T&l=tips&o=42337 or send a blank email to leave-42337-13090.68da6e6e5325aa33287ff385b70df...@fsulist.frostburg.edu
