New algorithm that may predict your intelligence
New York, June 30: Be careful if you lie about your IQ as researchers have developed a machine-learning algorithm that may tell how smart you are by looking at a scan of your brain.
The study showed that the new computing tool can predict a person's intelligence from functional magnetic resonance imaging (fMRI) scans of their resting state brain activity.
The fMRI develops a map of brain activity by detecting changes in blood flow to specific brain regions.
"We found if we just have people lie in the scanner and do nothing while we measure the pattern of activity in their brain, we can use the data to predict their intelligence," said co-author Ralph Adolphs from the California Institute of Technology (Caltech).
To train their algorithm on the complex patterns of activity in the human brain, the researchers downloaded the brain scans and intelligence scores from almost 900 individuals.
The researchers found that after processing the data, the algorithm was able to predict intelligence at statistically significant levels across the subjects.
"The information that we derive from the brain measurements can be used to account for about 20 per cent of the variance in intelligence we observed in our subjects," said Julien Dubois from the Cedars-Sinai Medical Centre.
In predicting intelligence from brain scans, the algorithm is doing something that humans cannot, because even an experienced neuroscientist cannot look at a brain scan and tell how intelligent a person is, the researchers said.
The researchers also conducted a parallel study, using the same test population and approach, that attempted to predict personality traits from fMRI brain scans.
The personality test they used divides personality into five scales -- openness to experience, conscientiousness, extraversion, agreeableness, neuroticism.
However, it has turned out to be much more difficult to predict personality using the method the team used for predicting intelligence.
The two studies are yet to be published in the separate journals Personality Neuroscience and Philosophical Transactions of the Royal Society.
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SC to hear plea on air pollution crisis in Delhi-NCR on Dec 17
New Delhi (PTI): The Supreme Court on Monday said it will list for hearing on December 17 a plea related to worsening air pollution levels in Delhi-NCR.
A bench comprising Chief Justice Surya Kant and justices Joymalya Bagchi and Vipul M Pamcholi took note of the submissions of senior advocate Aprajita Singh, who is assisting it as an amicus curiae, that though the preventive measures are there in place but the key issue was of their poor implementation by the authorities.
Singh said till this court directs something, the authorities do not comply with the protocols which are already there.
“This is coming up before a three judges bench on Wednesday. It will come up,” the CJI said.
Another lawyer referred to an application relating to the health issue of children, and said schools, despite the earlier orders, are holding outdoor sports activities.
“Despite the order of this court, Schools have found ways and means to have these sporting activities.. it is taking place. The CAQM (Commission for Air Quality Management) is again citing the order of this court,” the amicus also said.
“We know the problem and let us pass orders which can be complied with. There are some directions which can be forcibly imposed. In these urban metropolitan cities people have their own lifestyle. But the poor…,” the CJI said.
The amicus said the poor labourers are the worst ones to suffer.
Earlier the bench had said the plea against air pollution cannot be treated as a "customary" case to be listed only during the winter months only.
It had said the case will be taken twice in a month to find out short and long-term solutions to the menace.
Delhi on Monday choked under a thick blanket of smog, with the Air Quality Index (AQI) settling at 498, which falls in the higher spectrum of 'severe' category.
The air quality was 'severe' at 38 stations while it was 'very poor' at two stations. Jahangirpuri, which recorded an AQI of 498, recorded the worst air quality amongst all 40 stations.
According to the Central Pollution Control Board, an AQI between 0 and 50 is considered 'good', 51 to 100 'satisfactory', 101 to 200 'moderate', 201 to 300 'poor', 301 to 400 'very poor', and 401 to 500 'severe'.
The AQI in Delhi had climbed to 461 on Sunday and marked the city's most polluted day this winter and the second-worst December air quality day on record, as weak winds and low temperatures trapped pollutants close to the surface.
