UCI study shows link between infant stress and later deficits in brain-cell communication for learning and memory function
Psychological stress during infancy has been found to cause early impaired memory and a decline in related cognitive abilities, according to a UC Irvine School of Medicine study. The study suggests that the emotional stress associated with parental loss, abuse or neglect may contribute to the type of memory loss during middle-age years that is normally seen in the elderly.
The study, conducted in rats, is believed to be the first to show that early life emotional stress initiates a slow deterioration of brain-cell communication in adulthood. These cell-signaling deficits occur in the hippocampus, a brain region involved in learning, storage and recall of learned memories. Study results appear in the Oct. 12 issue of the Journal of Neuroscience.
Tom Vasich | EurekAlert!
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Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.
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Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.
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