THOG_problem
The THOG problem is one of cognitive psychologist Peter Wason's logic puzzles, constructed to show some of the weaknesses in human thinking.
This article relies largely or entirely on a single source. (April 2024) |
You are shown four symbols
- a black square
- a white square
- a black circle
- a white circle
and told by the experimenter "I have picked one colour (black or white) and one shape (square or circle). A symbol that possesses exactly one, but not both, of the properties I have picked, is called a THOG. The black square is a THOG. For each of the other symbols, are they a) definitely a THOG, b) undecidable, or c) definitely not a THOG?"
Presented in this form, the task is quite difficult, because much information must be held in working memory at the same time.