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Archerfish has the ability to recognize human faces: Study

In 2015, a study was done on Ambon damselfish (Pomacentrus amboinensis) where these fish could recognize facial differences among their own species with the aid of ultraviolet wavelengths

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Archerfish. Image source: awesomeocean.com
  • The Archerfish can be trained to recognize faces
  • Prior to this discovery, it was thought to be impossible
  • Scientists trained them with treats

Humans differ from other species in every sense of the term. Our physique, our body composition, and our mental capacity makes us stand out from the rest of the creatures on this earth. It is particularly our mental capacity, and our cognitive thinking that makes us to feel superior to other species and with this type of mental strength we are able to recognize when we discover new facts, and admit wrongs.

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A recent study published in the journal “Scientific Reports,” shows that we were wrong about fish, or at least one specific fish. The Archerfish, scientifically known as the Toxotes chatareus, which can actually be trained to recognize a human face.

Prior to this discovery, it was a universal fact that fish do not have a neocortex. The neocortex is a part of the brain in mammals. That is why this find is so interesting. When scientists look at the neocortex in mammals such as rats it is a smooth gray matter. When l we look at the neocortex in more advanced specifies such as humans and primates, it has grooves and these grooves increase the area of the neocortex. The responsibilities of the neocortex are as follows, sensory perception, motor commands, spatial reasoning, conscious thought, and language in humans.

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The Archerfish has the ability to recognize patterns. When thoroughly trained, the fish can differentiate between two photographs of people, and with astonishing accuracy. Scientists chose the Archerfish because it spits water, allowing scientists to understand what it was trying to communicate.

The scientists used operant conditioning to train the fish. They presented pictures of faces to the fish and taught them to distinguish between the two, and choose one over the other. When they chose the correct face, the fish were rewarded with fish feed. This process was repeated for days and up to two weeks.

The accuracy of the fish shocked scientists. The fish were correct 81% of the time. The stunned scientists further when their accuracy increased to 86% when the pictures were changed a bit in regards to color tones and head shapes. The fish simply look for patterns among the faces.

Other studies like this one have been conducted in the past. In 2015, a study was done on Ambon damselfish (Pomacentrus amboinensis). This research found that these fish could recognize facial differences among their own species with the aid of ultraviolet wavelengths. It is thought that they use this facial recognition tool to communicate with each other silently, keeping predators in the dark.

-by Abigail Andrea, an intern at NewsGram. Twitter: @abby_kono

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Treating insomnia in young people can ease mental health problems like Anxiety, Depression: Study

The study is published in The Lancet Psychiatry journal

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A study published Wednesday found that treating insomnia in young people could ease mental health problems such as anxiety and depression
A study published Wednesday found that treating insomnia in young people could ease mental health problems such as anxiety and depression. VOA

London, USA, September 7, 2017: Treating young people who suffer from insomnia by using online cognitive behavioral therapy (CBT) could reduce debilitating mental health problems such as anxiety and depression, scientists said Wednesday.

In a large trial published in The Lancet Psychiatry journal, researchers at Oxford University’s Sleep and Circadian Neuroscience Institute also found that successfully treating sleep disruption eased psychotic symptoms such as hallucinations and paranoia.

“Sleep problems are very common in people with mental health disorders, but for too long insomnia has been trivialized as merely a symptom, rather than a cause, of psychological difficulties,” said Daniel Freeman, a professor of clinical psychology who led the work.

“This study turns that old idea on its head, showing that insomnia may actually be a contributory cause of mental health problems.”

The research involved 3,755 university students from across Britain who were randomized into two groups. One group had six sessions of online CBT, each lasting about 20 minutes, and delivered via a digital program called Sleepio. The others had access to standard treatments but no CBT.

Freeman’s team monitored participants’ mental health with a series of online questionnaires at zero, three, 10 and 22 weeks from the start of treatment.

The researchers found that those who had the CBT sleep treatment reduced their insomnia significantly as well as showing small but sustained reductions in paranoia and hallucinatory experiences.

The CBT also led to improvements in depression, anxiety, nightmares, psychological well-being, and daytime work and home functioning.

Andrew Welchman, head of neuroscience and mental health at the Wellcome Trust health charity, which helped fund the research, said the results suggested improving sleep may provide a promising route into early treatment to improve mental health.

Freeman added: “A good night’s sleep really can make a difference to people’s psychological health. Helping people get better sleep could be an important first step in tackling many psychological problems and emotional problems.” (VOA)

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For the First Time in USA, 53-year-old convict Mark Asay was Executed using Etomidate in Lethal Injection

Etomidate is the drug which was used for Mark Asay's execution

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Mark Asay was executed using Etomidate
Mark Asay was executed using Etomidate. Pixabay
  • Etomidate was invented by scientists from Janssen Pharmaceuticals 
  • The reason behind conviction of Mark Asay last year was that in 1988 he racially motivated killing of 2 men in Jacksonville, Florida
  • Before he shot Booker, he called him a racial epithet

Florida (USA), August 25, 2017: A 53-year-old convict Mark Asay was executed using a new drug called Etomidate for lethal injection on 24 August 2017. This drug has not been used before in the US.

Mark Asay was executed reportedly and one of the three drugs used for lethal injection was etomidate. It’s the first time that in execution they used the drug etomidate.

Earlier midazolam was used for executions but now it is harder to get this drug as some drug manufacturers didn’t want it to be used for executions. Now, Etomidate is a substitution for midazolam.

According to CNN report, Greg Panico, spokesman for the company said, “Etomidate, an intravenous anesthetic, was invented by scientists from Janssen Pharmaceuticals in the 1960s

According to WJAX report, “This month, the Florida Supreme Court rejected arguments from Mark Asay’s attorneys that the new drug would cause too much pain.”  Florida’s highest court said that the inmate Mark Asay had not shown that it would result in more pain and dismissed a motion to block the execution.

The reason behind conviction of Mark Asay last year was that in 1988 he racially motivated killing of 2 men in Jacksonville, Florida.

Also Read: Women-Centric Drug Rehabilitation Centers in Hyderabad is Saving Young Girls from Recreational Drugs like LSD

The two men whom the jury found him guilty of murdering were Robert Lee Booker, who was black and Robert McDowell.  “Before he shot Booker, he called him a racial epithet. Prosecutors say he killed McDowell, who was dressed as a woman, after saying he would pay him for sex,” mentions WJAX report.

“The execution marks Florida’s first since The US Supreme Court ruling temporarily halted the practice in early 2016, saying the state’s sentencing process was unconstitutional because it gave judges, rather than juries, too much power in deciding whether to execute an inmate,” mentions CNN report.

On 24 August 2017, US Supreme Court denied a stay for execution request in Asay’s case and it was scheduled that he would die by injection after 6 p.m. EST. It was also revealed that Asay didn’t have any pending petitions along with the Florida Supreme Court.

In 1979, the death penalty was reinstituted by the state and since then, Mark James Asay is the first white man to be sentenced for the death penalty in Florida for killing a black man.


 

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What it takes to be a Wonder Woman of Bodybuilding and Weightlifting

Equality of men and women in different fields has been questioned, but bodybuilding women barely make it to the mainstream discussions and debates

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Wonder Women in bodybuilding
More women are preparing for bodybuilding and weightlifting competition. Wikimedia
  • Many of the competitive bodybuilders and weightlifters in the US are women
  • At a competition called OCB Presidential Cup, three-quarters of the total participants were women
  • This breaks stereotypical views revolving around weight lifting that make it a man’s business

Washington, August 20, 2017: The Washington state is hosting the OCB Presidential Cup, a competition for bodybuilding and weightlifting. But unlike most competitions, this one has three-quarters of the total competitors as women.

Out of 45 total competitors to showcase their impressive and aesthetic bodies, 30 were women while 15 were men.

Also Read: 21-Year-Old Bhumika Sharma Wins Miss World Body building Title in Venice, Breaks Gender Stereotypes

We come across many stereotypes where women are supposed to be the softer and fragile gender while men pump weights. However, this scenario is rapidly changing, especially in the United States.

More and more women are stepping into the gym with the hopes of having a body of their dreams without raising societal questions.

These women in Washington’s OCB Presidential Cup explain that it is their passion at the end of the day and it is really all that matters. However, they do hope to inspire others with this distinct challenge that they have taken.

Equality of men and women in different fields has been questioned, but bodybuilding women barely make it to the mainstream discussions and debates.

A weightlifting and bodybuilding competition requires a whole lot of commitment, dedication as well as preparation. Months of training goes into it. And this training includes an astonishingly exhaustive workout coupled with the austere diet regime and nutrient intake.

Moreover, living such a lifestyle helps men and women alike to improve their well-being and reduce chances of illness and health problems.

The competition is drug-free and the competitors go through a polygraph test before they are accepted to participate.

– Prepared by Saksham Narula of NewsGram. Twitter @Saksham2394


NewsGram is a Chicago-based non-profit media organization. We depend upon support from our readers to maintain our objective reporting. Show your support by Donating to NewsGram. Donations to NewsGram are tax-exempt.