There may still be a better way than the “walk and turn” for cops eager to catch drugged drivers.
The problem: Many states are legalizing marijuana, but the way our bodies process it makes it hard to create objective tests to determine if someone is too high to drive. Previous attempts to create such tests have come to naught.
What’s new: Stat reports that a brain cap could reveal shifts in brain activity that may be linked to unsafe levels of cannabis use. The device uses a technique called functional near-infrared spectroscopy, which bounces light around the inside of the skull to measure changes in blood flow that may correspond to shifting communication between parts of the brain.
But: Researchers are still trying to ensure that the signals they see are actually a result of drug impairment. And it’s unclear how cops would use the device at the roadside.
Biotechnology and health
Scientists are finding signals of long covid in blood. They could lead to new treatments.
Faults in a certain part of the immune system might be at the root of some long covid cases, new research suggests.
Gene editing had a banner year in 2023
This year, gene editing finally started living up to its potential
The first gene-editing treatment: 10 Breakthrough Technologies 2024
Sickle-cell disease is the first illness to be beaten by CRISPR, but the new treatment comes with an expected price tag of $2 to $3 million.
This baby with a head camera helped teach an AI how kids learn language
A neural network trained on the experiences of a single young child managed to learn one of the core components of language: how to match words to the objects they represent.
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