Interesting and I remember coming across similar research a few years ago.

Brain stimulation might sound like some Frankensteinian demonstration from a Victorian science fair. But in reality, it is a contemporary technique making a huge impact in neuroscience by addressing a longstanding limitation of traditional methods for investigating human brain function. Such techniques, like EEG and fMRI, can only be used to infer the effects of a stimulus or task on brain activity, and not vice versa. For example, a scientist might use EEG to study the effect of a task like arm movement on brain activity, but how can one study the effect of brain activity on arm movement?

Today, noninvasive brain stimulation techniques such as transcranial magnetic stimulation (TMS) are offering alternatives to old paradigms. TMS can excite or suppress underlying brain tissue safely and ethically, allowing researchers to study causal relationships between brain circuits and behavior. What’s more, TMS may have therapeutic value in treating brain disorders such as depression.

There’s an old saying in neuroscience: “neurons that fire together wire together.” This means the more you run a neuro-circuit in your brain, the stronger that circuit becomes. This is why, to quote another old saw, “practice makes perfect”. The more you practice piano, or speaking a language, or juggling, the stronger those circuits get.

Scientists have known this for years. However, nowadays researchers learn another part of the truth: In order to learn something, even more important than practicing is the ability to unlearn, or to break down the old neural connections. This is called “synaptic pruning”.

Wonder how much this would be really true.

What would happen if everyone in the world had an IQ score over 200 points? This is a type of intelligence that only comes along every so often. An IQ level of 200 is as high, or higher, than the theoretical IQs of history’s greatest minds like Albert Einstein, Leonardo da Vinci, and Isaac Newton.

Slime mold, a unicellular organism living in forest litter, offers a curious case of learning without a brain. This blob-like creeping organism learns from experience and imparts the knowledge to peers.