Apr 27, 2017

How and how much to change the brain

Our expert voices conversation on "When computers merge with our minds."

When we're awake, the 100 billion intricately connected neurons in our brain are entirely active, receiving, analyzing, and responding to the inputs we're collecting from the world. The idea then of inserting a machine into that complexity in order to enhance or suppress behavior comes with many challenges.

Problem to be solved: How do we pick a target? The brain is a mesh of multiple networks associated with different functions, so you can actually cause impulsivity or depression in patients with Parkinson's because stimulating one network means you can accidentally activate another. Some conditions, like depression, have several possible targets within the brain. Which of the many candidates should be stimulated — and how?

Where to draw the line: Research has shown that stimulating certain brain areas increases memory capabilities and improves learning. Treating disease serves the public — but enhancing our cognitive abilities runs the risk of only serving some. If we could design a brain chip to enhance memory, how would we price it and keep a level playing field?

The other voices in the conversation:

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In photos: Americans venture out for Memorial Day weekend

Venice Beach in Los Angeles on May 24. Photo: David McNew/Getty Images

Authorities warned Americans to take precautions against the coronavirus amid reports of packed beaches during the Memorial Day weekend, some three months after the pandemic began spreading across the U.S.

The big picture: Law enforcement stepped up beach patrols, authorities on Florida's Gulf Coast closed parking lots because they were full and there were crowded scenes at Lake of the Ozarks bars in Missouri, per AP, which reports a shooting injured several people at a packed Daytona Beach in Florida.

Coronavirus dashboard

Illustration: Aïda Amer/Axios

  1. Global: Total confirmed cases as of 9:30 p.m. ET: 5,405,029 — Total deaths: 344,997 — Total recoveries — 2,168,408Map.
  2. U.S.: Total confirmed cases as of 9:30 p.m. ET: 1,642,021 — Total deaths: 97,698 — Total recoveries: 366,736 — Total tested: 14,163,195Map.
  3. World: White House announces travel restrictions on Brazil, coronavirus hotspot in Southern Hemisphere Over 100 coronavirus cases in Germany tied to single day of church services — Boris Johnson backs top aide amid reports that he broke U.K. lockdown while exhibiting symptoms.
  4. Public health: Officials are urging Americans to wear masks headed into Memorial Day weekend Report finds "little evidence" coronavirus under control in most statesHurricanes, wildfires, the flu could strain COVID-19 response
  5. Economy: White House economic adviser Kevin Hassett says it's possible the unemployment rate could still be in double digits by November's election — Public employees brace for layoffs.
  6. Federal government: Trump attacks a Columbia University study that suggests earlier lockdown could have saved 36,000 American lives.
  7. What should I do? Hydroxychloroquine questions answeredTraveling, asthma, dishes, disinfectants and being contagiousMasks, lending books and self-isolatingExercise, laundry, what counts as soap — Pets, moving and personal healthAnswers about the virus from Axios expertsWhat to know about social distancingHow to minimize your risk.
  8. Other resources: CDC on how to avoid the virus, what to do if you get it, the right mask to wear.

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Updated 43 mins ago - Politics & Policy

Republicans sue California over mail-out ballot plan

California Gov. Gavin Newsom during a February news conference in Sacramento, California. Photo: Justin Sullivan/Getty Images

President Trump accused Democrats of trying "Rig" November's general election as Republican groups filed a lawsuit against California Sunday in an attempt to stop Gov. Gavin Newsom (D) from mailing ballots to all registered voters.

Driving the news: Newsom signed an executive order this month in response to the coronavirus pandemic ensuring that all registered voters in the state receive a mail-in ballot.