Imagination

A related line of enquiry is to determine not only whether the hippocampus is active during future simulation but whether it makes a critical and necessary contribution. While it has been long established that a functioning hippocampus is necessary for the retrieval of detailed autobiographical memories (for a review, see Moscovitch et al., 2005),... See more

In recent years, neuroimaging has provided evidence to suggest that imagining the future relies on much of the same neural machinery as remembering the past. One hypothesis that such findings motivate is that memories must be reactivated in order to extract the information needed to “flesh out” detailed simulations. Indeed, if simulations involve... See more

The brain evaluates the images it is processing against a “reality threshold.” If the signal passes the threshold, the brain thinks it’s real; if it doesn’t, the brain thinks it’s imagined.

This suggests that the linear relationship between plausibility and hippocampal activity observed in the Weiler et al. study may not hold for the entire spectrum of plausibility. Instead, extremely implausible events may be associated with decreased hippocampal activity (relative to less implausible events), as observed in the current study where... See more

There is a peculiar attitude, here at the beginning of the 21st century. On the one hand, we agree things aren’t fine. On the other hand, there’s a widespread feeling that there’s nothing to be done .