The destruction of
both hippocampi (as the result of a stroke, for example)
has disastrous effects on long-term memory, preventing
the individual from learning anything new whatsoever. The
most important evidence of the role of the hippocampus
in transferring long-term memories has been provided by
subjects who had sustained damage to both hippocampi and
could not keep things in their memories for more than a
few moments.
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