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Researchers have gained new understanding on the workings of amnesia through research that used light to revive lost memories in mice, a study reported. Amnesia remains a controversial subject in the field of neuroscience, with some researchers arguing that it occurs when cells are damaged and memory cannot be stored, while others believe that the memories are simply blocked and cannot be recalled. "The majority of researchers have favored the storage theory, but we have shown in this paper that this majority theory is probably wrong," researcher Susumu Tonegawa of the Massachusetts Institute of Technology said.
By Lincoln Feast SYDNEY (Reuters) - Al Jazeera reporter Peter Greste, deported after spending 400 days in an Egyptian jail on charges that included aiding a terrorist group, fears he will be found guilty in absentia at a retrial that resumes in Cairo next week. Australian Greste and two Al Jazeera colleagues, Mohamed Fahmy and Baher Mohamed, were sentenced to seven to 10 years in prison last June in a case that provoked an international outcry. A retrial was ordered after Egypt's highest court found procedural flaws in the initial case began in February, soon after Greste was deported to his native Australia.