Neuroscientists at UC Berkeley have discovered that stimulation of a certain area of the brain can cause a change in which hand a person favors to perform a task. Using transcranial magnetic stimulation on right handed test subjects, researchers discovered that stimulating the posterior parietal cortex on the left side caused an increase in the use of the left hand. Researchers suggested this finding might be useful in discovering methods to help patients overcome learned limb disuse.
This research shows that the loss of connections in the corpus collosum could be partly responsible for slower response times seen in older animals and humans due to too much crosstalk and confusion between the brain hemispheres.
UCL neuroscientists have shown that a single neuron, and even a single dendrite, can respond differently to unique sequences of input.
A new study from researchers at UCLA indicates that new memories with emotional content can be formed even if the amygdala is damaged. Researchers believe that other areas compensated for the damaged amygdala, and aided learning and memory.
SIRT1 was again found to be important in learning and memory for mice, but boosting SIRT1 above the normal levels of expression did not lead to an improvement in learning and memory.
Researchers at MIT have discovered that Sirtuin1, a protein encoded by the SIRT1 gene, promotes synaptic plasticity and boosts memory.