An article on Yahoo! said that the origin of deja vu has been located.
If the dentate gyrus is involved in pattern recognition, could variances in the dentate gyrus account for preferring to notice patterns over noticing details?The brain cranks out memories near its center, in a looped wishbone of tissue called the hippocampus. But a new study suggests only a small chunk of it, called the dentate gyrus, is responsible for "episodic" memories--information that allows us to tell similar places and situations apart. ... Like a computer logging its programs’ activities, the dentate gyrus notes a situation's pattern--its visual, audio, smell, time and other cues for the body's future reference. ... Deja vu is a memory problem, Tonegawa explained, occurring when our brains struggle to tell the difference between two extremely similar situations.
Could this also explain why I confuse places that have similar ambiances?