Hypnosis can make some people forget and, when given a special cue, quickly remember recently viewed scenes. A new study using the technique may shed light on the process of memory retrieval and the potential for one part of the brain to block it. Hypnosis-induced memory suppression may also expand understanding of amnesia.
Whenever the mind retrieves information, any number of memories might be conjured up by association. Yadin Dudai of the Weizmann Institute of Science in Rehovot, Israel, wondered how the brain selects only one memory and excludes many others.
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