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Posts Tagged ‘Journal of Neuroscience

Scientists discover that our brain waves can be sent by electrical fields – ScienceAlert

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PETER DOCKRILL

15 JAN 2016

“The implications are that such directed fields can be used to modulate both pathological activities, such as seizures, and to interact with cognitive rhythms that help regulate a variety of processes in the brain.”

The results indicate that electric fields (ephaptic effects) are capable of mediating propagation of self-regenerating neural waves,” they write. “This novel mechanism coupling cell-by-volume conduction could be involved in other types of propagating neural signals, such as slow-wave sleep, sharp hippocampal waves, theta waves, or seizures.”

If their findings, which are reported in The Journal of Neuroscience, can be expounded in further studies, it could help us to better understand how brain waves are associated with things like memory, epilepsy, and healthy physiology.

Source URL:   http://www.sciencealert.com/scientists-discover-new-method-of-brain-wave-transmission-electrical-fields

Brain activity patterns preserve traces of previous cognitive activity

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June 26, 2013

Weizmann Institute scientists discover that spontaneously emerging brain activity patterns preserve traces of previous cognitive activity.

past_brain_activation

The day-after effect of brain activation: The brain image at the back presents spontaneous resting state patterns before an fMRI-based neurofeedback training session. The front brain image presents spontaneous resting state patterns a day after the training session, illustrating the long-term trace of the training. Credit: Weizmann Institute of Science

This research suggests a number of future possibilities for exploring the brain. For example, spontaneously emerging brain patterns could be used as a “mapping tool” for unearthing cognitive events from an individual’s recent past.

Or, on a wider scale, each person’s unique spontaneously emerging activity patterns might eventually reveal a sort of personal profile — highlighting each individual’s abilities, shortcomings, biases, learning skills, etc.

via Brain activity patterns preserve traces of previous cognitive activity | KurzweilAI.