"Bad experiences enhance memory formation about places, scientists at The University of Queensland have found....
"This heightened recall occurs automatically, without people even being aware that the negative imagery is affecting their memories," said Dr Baumann, who worked on the study in the QBI's Mattingley lab.
"It could serve as a cue for avoiding potential threats," Dr Baumann said.
"Our findings show that emotions can exert a powerful influence on spatial and navigational memory for places....
""The results showed that emotional arousal exerted a powerful influence on memory by enhancing parahippocampal activity," Dr Baumann said."
http://medicalxpress.com/news/2013-09-forge-stronger-memories.html
Chan, et al. (2013). "Negative Emotional Experiences during Navigation Enhance Parahippocampal Activity during Recall of Place Information." Journal of Cognitive Neuroscience. Abstract.
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