Published April 28, 2017

Researchers in France conducted MRIs and questionnaire-based neurological tests with patients undergoing valve-replacement surgery. They found that 26% of the participants already had at least one microbleed before the surgery. Three days after surgery, a total of 40% had microbleeds, with 23% having new bleeds.

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Published April 26, 2017

Researchers had 17 participants complete auditory memory tasks that involved recognizing a pattern of tones after it was reversed. As they worked on the tasks, the researchers monitored their theta waves. They then had the participants repeat the tasks while receiving transcranial magnetic stimulation (TMS) at the same theta frequency. With the TMS, the participants did better on the tasks – as long as the TMS matched their natural theta rhythms. When it was arrhythmic, they performed similarly to their initial results. 

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Published April 24, 2017

Patients with B12 levels in the lower end of the range “showed a significantly poorer learning ability and recognition performance than did patients with high-normal vitamin B12 levels. Also, the microstructure integrity of the hippocampus was lower in patients with low-normal vitamin B12.”

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