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Location: UFOUpDatesList.Com > 2007 > Apr > Apr 18

On Memory Strength Of Abductees

From: Rick Nielsen <nilthchi.nul>
Date: Wed, 18 Apr 2007 05:35:02 -0700 (PDT)
Fwd Date: Wed, 18 Apr 2007 11:07:50 -0400
Subject: On Memory Strength Of Abductees

Source: Science Daily - Chevy Chase, Maryland, USA


April 18, 2007

Sleep Enforces The Temporal Sequence In Memory

Science Daily -- We have usually quite strong memories of past
events like an exciting holiday or a jolly birthday party.
However it is not clear how the brain keeps track of the
temporal sequence in such memories: did Paul spill a glass of
wine before or after Mary left the party?

Previous findings from a research group headed by Jan Born at
the University of L=FCbeck have confirmed the widely held view
that long-term memories are formed particularly during sleep,
and that this process relies on the brain replaying recently
encoded experiences during the night. The same research group
now provides evidence that sleep not only strengthens the
content of a memory but also the particular order in which they
were experienced, probably by a replay of the experiences in
"forward" direction.

Students were asked to learn triplets of words presented one
after the other. Afterwards they slept, whereas in a control
condition no sleep was allowed. Later, recall was tested by
presenting one word and asking which one came before and which
one came after during learning. Sleep was found to enhance word
recall, but only when the students were asked to reproduce the
learned words in forward direction.

This finding shows that sleep associated consolidation of
memories enforces the temporal structure of the memorized
episode that otherwise might be blurred to a timeless puzzle of

Citation: Drosopoulos S, Windau E, Wagner U, Born J (2007) Sleep
Enforces the Temporal Order in Memory.


Note: This story has been adapted from a news release issued by
Public Library of Science.

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