This is where certain memories are best recalled (or can only be recalled) when one is in the same emotional state as when the memories were created. And I don't think there's any question that events that occur when emotions are stored the most strongly; that's basically half of what emotions are for.
It's difficult to say exactly how the density of memory is linked with perception of time. I would posit though that experiencing a variety of strong emotions on a regular basis is important for maintaining both good mental health and a well-functioning brain.
Emotion is definitely highly linked to memory. E.g. you may be familiar with state-dependent memory:
http://en.wikipedia.org/wiki/State-dependent_learning
This is where certain memories are best recalled (or can only be recalled) when one is in the same emotional state as when the memories were created. And I don't think there's any question that events that occur when emotions are stored the most strongly; that's basically half of what emotions are for.
It's difficult to say exactly how the density of memory is linked with perception of time. I would posit though that experiencing a variety of strong emotions on a regular basis is important for maintaining both good mental health and a well-functioning brain.