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Posts Tagged ‘University of California Berkeley’

Power Changes People’s Brain Study Confirms.

In lifestyle on August 10, 2013 at 19:36

People change with Power.

The power may come in many denomination.

Money,Political Power,Muscle Power…..

Power also corrupts.

And ‘Absolute Power corrupts Absolutely,

What we know by experience is confirmed by a Study.

Power effects changes in the Brain.

if we  remember power is temporary and being Humane is permanent one would not be intoxicated with it.

Out of Attachment arises Anger,Of attachment intellect stumbles,when intellect stumbles, Man perishes.

Power and Behavior

Power and Behaviorhttp://www.reddit.com/tb/1k32yu

Story:

Now with a new study there’s evidence to support that claim.

Obhi and his fellow researchers took a bunch of participants and randomly put them in the mindset of feeling either powerful or powerless. The powerless group was asked to write a diary entry about a time they depended on others for help. The powerful group wrote entries about times they were calling the shots, and they knew it. (There was also a control group, neither powerful or powerless, who wrote about something else entirely.)

Then everybody watched a simple video. In it, an anonymous hand squeezes a rubber ball a handful of times—sort of monotonous.

But while the video ran, Obhi’s team tracked the participants’ brains, looking at a special region called the mirror system.

The mirror system is important because it contains neurons that become active both when you squeeze a rubber ball and when you watch a stranger squeeze a rubber ball. It is the same thing with picking up a cup of coffee, hitting a baseball, or flying a kite. Whether the stranger does it, or you do it, your mirror system activates either way.

In this small way, the mirror system places you inside a stranger’s head. Furthermore because our actions are linked to deeper thoughts like beliefs and intentions, you can also begin to understand the motivations another person has for squeezing a rubber ball, to pick an example.

Understanding what another person wants—and perhaps more importantly, doesn’t want—for him or herself is actually a key component of developing empathy.

Obhi’s team wanted to see if bestowing a person with a feeling of power or powerlessness would change how the mirror system responded to a stranger performing a simple action.

The researchers found that the mirror system—and by extension, one’s ability to connect with others—was tuned down by power.

“What we’re finding is power diminishes all varieties of empathy,” says Dacher Keltner, a social psychologist at UC Berkeley not involved in the new study. He says these results fit a trend within psychological research, but add the hint of some possible biological machinery behind the phenomenon.

Dacher Keltner says understanding that process is absolutely vital.

“Whether you’re with a team at work [or] your family dinner, all of that hinges on how we adapt our behaviors to the behaviors of other people. And power takes a bite out of that ability, which is too bad.”

http://www.reddit.com/tb/1k32yu

Audio for this story from Weekend Edition Saturday will be available at approximately 12:00 p.m. ET.

 

Scientists Find a Way To Hack Human Brain.

In Medicine, technology on August 18, 2012 at 20:14

Scary!

What can one say?

The Brain Hacking'

The EEG results for a target and a non-target stimulus

Story:

The idea is simply this: have your brain mapped by sensors (here, an EEG or Electroencephalograph is used), which pick up crucial brain activity and then sophisticated software can help understand what it is that the brain is trying to do! These are called ‘brain-computer interfaces’ (or BCI’s) for obvious reasons.

These can actually help you mentally control your computer using specific thought patterns.

What is interesting is how a computer can browse through your mental database and steal away some pieces of sensitive information. Security researchers from the Universities of Oxford and Geneva and University of California, Berkeley have developed a program to be used by the software that has only one purpose – finding information like home address, debit card PIN and date of birth. They found 28 willing participants, who didn’t know about the hacking (of course, otherwise the whole exercise is futile, right?) and tested this program on them. The success rate varied from a mere 10% to a respectable 40% for different fields of sensitive data.

The technique is a lot like hacking passwords. The key response tracked by the program is known as a P300 response – the brainwave activity that the brain undergoes when it recognizes something familiar, like a known face, own neighbourhood, own debit card PIN and so on! The peaks in the P300 activity were noted and the analysis of this data can give a very good indication of what the right answers are!

http://techie-buzz.com/science/brain-hack.html#eDGHFT0axkrQayOF.99

Where Do Cockroaches Go? Video

In Behavior, Interesting and funny on June 12, 2012 at 08:38

All of a sudden you find cockroaches disappearing, some times with insecticides.

I often wondered as to where and how they have gone?

It is a different matter they appear the moment some food particles are left in the kitchen.

The answer is here.

When humans see a cockroach skitter away from the light and seem to ‘disappear’, the creatures are actually employing one of nature’s smartest disappearing acts.

Cockroach

Cockroach caught by Slow motion Camera

Now a Berkeley robotics lab has used slow-motion cameras to capture the secrets of the trick – and found that the insects use their rear legs to swing underneath ledges, faster than an eye can see.

Jean-Michel Mongeau of UC Berkeley‘s said, ‘When we slowed it down, we were amazed to see that it was the cockroach’s hind legs grabbing the surface that allowed it to swing around under the ledge.

Cockroaches continue to surprise us,’ said Robert Full, a professor of integrative biology who 15 years ago discovered that when cockroaches run rapidly, they rear up on their two hind legs like bipedal humans.

The researchers are studying the insects to build robots that mimic their incredible ‘disappearing’ skills.

‘They have fast relay systems that allow them to dart away quickly in response to light or motion at speeds up to 50 body lengths per second, which is equivalent to a couple hundred miles per hour, if you scale up to the size of humans. This makes them incredibly good at escaping predators.’

Surprisingly, the researchers discovered a similar behavior in lizards, animals that have hook-like toenails, and also documented geckos using this escape technique in the jungle at the Wildlife Reserves near Singapore.

‘This behavior is probably pretty widespread, because it is an effective way to quickly move out of sight for small animals,’ Full said.

The cockroaches’ disappearing act, though, relies on tiny hairs on their legs. Without these crucial hairs, they simply fall off – as seen in a video showing off the ‘trick’.

Mongeau and Brian McRae, an undergraduate bioengineering major, analyzed the mechanics of the ninja-like maneuver and discovered that the cockroach, an American cockroach (Periplaneta americana), wasn’t merely falling over the ledge.

It actually ran at full speed toward the ledge, dove off, then grabbed the edge with its claws – sometimes using only one leg – and swung like a pendulum under the ledge, retaining 75 percent of its running energy.

This pendulum swing subjects the animal to 3-5 times the force of gravity (3-5 gs), similar to what humans feel at the bottom of a bungee jump, Mongeau said.

Aside from helping scientists understand animal locomotion, these findings will go into making better robots.

‘Today, some robots are good at running, some at climbing, but very few are good at both or transitioning from one behavior to the other,’ he said. ‘That’s really the challenge now in robotics, to produce robots that can transition on complex surfaces and get into dangerous areas that first responders can’t get into.’

 http://www.dailymail.co.uk/sciencetech/article-2156378/Secrets-cockroaches-disappearing-act-revealed–creatures-swing-underneath-ledges-vanish.html#ixzz1xXoBRq2D

Computer That Translates Thoughts into Words

In Health, Science, Uncategorized on May 3, 2012 at 17:38

An X Ray Scan of the Brain.

Scientists are reported to have developed a Computer that can read and translate these thoughts into words.

The Computer analyses the electron discharges in the Brain and converts them into words.

That thoughts are electrical activity has been accepted recently by Scientists.

In fact some form of Epileptic seizures, like Grand mal seizure, is due to high rate of electrical discharge in the Brain.

In fact Science will come to know that it is not electrical discharge that happens in the brain but Magnetic discharges.

This has been explained in Buddhist Treatises and in Vaiseshika System of Indian Philosophy,

The underlying concept in this experiment is that the thought process is Linear.

True, but the process of Intellect is Magnetic and Non Linear- Result of the Activity of the Brain is Thought;Activity of the Brain is Intellect at a higher plane is Intellect, which determines the Course of your thoughts.

Even this is another process  by Chitta.

When people ask you to meditate it is only the modification of the Chitta that is being addressed to

 

Neuroscientists at the University of California Berkeley put electrodes inside the skulls of brain surgery patients to monitor information from their temporal lobe, which is involved in the processing of speech and images.

As the patient listened to someone speaking, a computer program analysed how the brain processed and reproduced the words they had heard.

The scientists believe the technique could also be used to read and report what they were thinking of saying next.

In the journal PLoS Biology, they write that it takes attempts at mind reading to ‘a whole new level’.

A computer programme analysed the activity from the electrodes, and reproduced the word they had heard or something very similar to it at the first attempt.

Brain Spectrogram

Spectrogram of Brain Activity.

Co-author Brian Pasley said there is already mounting evidence that ‘perception and imagery may be pretty similar in the brain’.

Therefore with more work, brain recordings could allow scientists to ‘synthesise the actual sound a person is thinking, or just write out the words with a type of interface device.’

Their study also shows in sharp relief how the auditory system breaks down sound into its individual frequencies – a range of around 1 to 8,000 Hertz for human speech.

Pasley told ABC News: ‘This study mainly focused on lower-level acoustic characteristics of speech. But I think there’s a lot more happening in these brain areas than acoustic analysis’.

He added: ‘We sort of take it for granted, the ability to understand speech. But your brain is doing amazing computations to accomplish this feat.’

http://www.dailymail.co.uk/sciencetech/article-2094671/Mind-boggling-Science-creates-decode-thoughts-words.html

Free Useful Online Classes By Reputed Institutions.

In Education on March 2, 2012 at 10:14

Image representing YouTube as depicted in Crun...

Image via CrunchBase

I have come across an article which lists useful Online classes.

I am posting them below.

Darwin’s Legacy
Institution: Stanford
Taught By: Team taught; guest lecturers include leading scholars in fields ranging from anthropology, to religion, to literature, to biology.
Available Via: YouTube | iTunes U Video
Course Description: “Light will be thrown…” With these modest words, Charles Darwin launched a sweeping new theory of life in his epic book, On the Origin of Species (1859). The theory opened eyes and minds around the world to a radical new understanding of the flora and fauna of the planet. Here, Darwin showed for the first time that no supernatural processes are necessary to explain the profusion of living beings on earth, that all organisms past and present are related in a historical branching pattern of descent, and that human beings fall into place quite naturally in the web of all life. Now, 150 years later and 200 years after Darwins birth, we celebrate the amazingly productive vision and reach of his theory. In this Fall Quarter course, we will meet weekly with leading Darwin scholars from around the country to learn about Darwins far-reaching legacy in fields as diverse as anthropology, religion, medicine, psychology, philosophy, literature, and biology. With such a broad reach across the natural sciences, social sciences, and humanities, no wonder the theory of evolution by natural selection has been called the single best idea, ever.

 Astrobiology and Space Exploration
Institution: Stanford
Taught By: Lynn Rotschild & guest lecturers the likes of SETI Senior Astronomer Seth Shostak
Available Via: YouTube | iTunes U Video
Course Description: Astrobiology asks: Where do we come from? Are we alone? Where are we going? This course gives an overview of the excitement of astrobiology and space exploration, from the origin of our own biofriendly universe to questions of the future of mankind both on Earth and beyond.

8. Descriptive Introduction to Physics
Institution: UC Berkeley
Taught By: Steven Edward Boggs
Available Via: iTunes U Video
Course Description: The most interesting and important topics in physics, stressing conceptual understanding rather than math, with applications to current events. Topics covered may vary and may include energy and conservation, radioactivity, nuclear physics, the Theory of Relativity, lasers, explosions, earthquakes, superconductors, and quantum physics.

 Astronomy 001
Institution: Penn State University
Taught By: Scott Miller, Mercedes Richards and Stephen Redman
Available Via: YouTube | iTunes U Video
Course Description: Astronomy 001, Section 005 is a web-based course, complete with online presentations, interactive media, and video demonstrations. This course covers everything from mankind’s first understanding of the heavens out to other planets, galaxies, and the edge of the known Universe!

6. Earth and Planetary Sciences
Institution: UC Berkeley
Taught By: Richard Allen
Available Via: YouTube | iTunes U Video
Course Description: Introduction to earthquakes, their causes and effects. General discussion of basic principles and methods of seismology and geological tectonics, distribution of earthquakes in space and time, effects of earthquakes, and earthquake hazard and risk, with particular emphasis on the situation in California.

Frontiers of Biomedical Engineering
Institution: Yale
Taught By: W. Mark Saltzman
Available Via: YouTube | iTunes U Video
Course Description: The course covers basic concepts of biomedical engineering and their connection with the spectrum of human activity. It serves as an introduction to the fundamental science and engineering on which biomedical engineering is based. Case studies of drugs and medical products illustrate the product development-product testing cycle, patent protection, and FDA approval. It is designed for science and non-science majors.

http://www.stumbleupon.com/su/1pyDkm/io9.com/5848291/10-awesome-online-classes-you-can-take-for-free/

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