Long-Term Couples Develop Interconnected Memory Systems

Long-Term Couples Develop Interconnected Memory Systems
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It’s commonly understood that some couples “become a unit,” denoting a kind of psychological Yin-Yang between the pair, but scientists have recently discovered some interesting data that confirms and extrapolates on this idea. The findings claim that long-term couples develop “interpersonal cognitive systems,” that complement each individual’s memory gaps:

[In a previous study], the researchers noticed that although couples did more poorly at listing their shared holidays when recalling together, these social sessions were filled with anecdotes and tangents that weren’t generated in the solo sessions. This inspired them to depart from testing memory for lists of words and events, and to explore the amount of rich, in-depth information remembered by couples about experienced events. They found these social exchanges led to clear collaborative memory benefits, which could take three forms:

1. “New information” such as finally snatching an elusive name of a musical thanks to a chain of prompts between the two parties.

2. Richer, more vivid descriptions of events including sensory information.

3. Information from one partner painting things in a new light for the other.

Differences between the couples were crucial. Those who structured their approach together and were more prepared to riff off the other’s contributions did better than those who were more passive or critical. Richer events were also better remembered by partners who rated their intimacy as higher.

Read more at io9 and the very nifty brain blog, Research Digest: Blogging on Brain and Behavior.

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