While debate continues over the effects of post-traumatic stress disorder, a new study indicates traumatic events and PTSD symptoms may be followed in some cases by a size reduction in a part of the brain called the hippocampus.
Do you know someone who claims to remember their first day of kindergarten? Or a trip they took as a toddler? While some people may be able to recall trivial details from the past, laboratory research shows that the human memory can be remarkably fragile and even inventive. New research shows that it is possible to change long-term behaviors using a simple suggestive technique.
People with schizophrenia have an alteration in a pattern of brain electrical activity associated with learning and memory. Now, researchers have identified in mouse brain tissue a molecular switch that, when thrown, increases the strength of this electrical pattern. The researchers found that adding the brain chemical Neuregulin-1 to the brain tissue boosted the electrical signals that the tissue generated.
Research offers new insights into the specific components of emotional memories, suggesting that sleep plays a key role in what we remember -- and what we forget.
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