#eeg

#eeg

They then used emerging mathematical methods to isolate signals originating from nine brain regions previously implicated in mediating consciousness and examined connections between pairs of these regions. Among them were the parietal cortex, which is at the top of the brain about halfway between the forehead and the back of the skull; the occipital cortex, at the back of the head; and several small, deeper structures, such as one called the thalamus.

It might come as a surprise to learn that the brain responds to training in much the same way as our muscles, even though most of us never think about it that way. Clear thinking, focus, creativity, and good judgment are built through challenge, when the brain is asked to stretch beyond routine rather than run on autopilot. That slight mental discomfort is often the sign that the brain is actually being trained, a lot like that good workout burn in your muscles.

An Electroencephalogram (EEG) is a clinical tool to monitor the electrical activity of our brains. Put very simply, our minds are constantly moving ions around, and when they reach the scalp, it's possible to measure those ions. By placing electrodes on the scalp, you can record the changes in voltages pushed out by our brains more or less in real time. These voltages are commonly grouped into categories, which are often described as brain waves.

In philosophy, physicalism is the idea that everything can be explained in physical terms. Whether through atoms, electrons, quarks, fields, or other physical processes, physicalism holds that every phenomenon ultimately depends on the physical world. In the philosophy of mind, this means that everything about the mind can, in principle, be explained by the physical processes of the brain. We don't yet know all the details, but physicalism maintains that a complete explanation is possible.

The team wanted to find out whether the disconnected part has some form of awareness - or was capable of exhibiting consciousness, says co-author Marcello Massimini, a neurophysiology researcher at the University of Milan in Italy. "The question arises because we have no access" to the disconnected region, he says, adding that it was unclear what happens once part of the brain is isolated.

The brain generates rhythms naturally. One way to confirm this is to record the brain's electrical activity. This electrical activity results from the passage of ions (particles with positive or negative charge, such as sodium and chloride, the components of salt) across brain cell membranes. EEG (electroencephalography), a painless and harmless technique using wires (electrodes) placed on the scalp to record this activity, has been around for nearly a century. EEG reveals that much of a healthy brain's electrical activity is rhythmic, not random.

Athletes know that performance isn't just about physical strength or stamina. Mental focus, resilience, and emotional control are just as critical when the pressure is on. Yet most wearables on the market still focus on heart rate, steps, or calories, leaving the brain's role in training largely invisible. For anyone who's ever lost focus at a crucial moment or wondered why a session just didn't click, there's finally a new tool that brings mental fitness into the spotlight.