Monday, March 19, 2012

With the Right Photo, Your Facebook Text Profile Hardly Matters

In most cases, your profile photo on Facebook tells viewers what they need to know to form an impression of you -- no words are necessary, new research suggests.


College students who viewed a Facebook photo of a fellow student having fun with friends rated that person as extraverted -- even if his profile said he was "not a big people-person."
"Photos seem to be the primary way we make impressions of people on social networking sites," said Brandon Van Der Heide, lead author of the study and assistant professor of communication at Ohio State University.
The exception is when a photo is out of the ordinary or shows someone in a negative light. In that case, people do use profile text to help interpret what kind of person is shown in the profile.
"People will accept a positive photo of you as showing how you really are. But if the photo is odd or negative in any way, people want to find out more before forming an impression," he said
Van Der Heide conducted the study with Jonathan D'Angelo and Erin Schumaker, graduate students in communication at Ohio State. Their results appear in a recent issue of theJournal of Communication.
The researchers conducted two studies.
In one study, 195 college students viewed a mock Facebook profile of a person who was supposedly a fellow student. The profile included a photo and a written "about me" statement.
Participants were asked to rate how extraverted they thought the student in the profile was, on a scale of 1 (least extraverted) to 7 (most extraverted) based on the photo and text.
The participants viewed one of four profiles: in one, both the photo (a person shown socializing with friends) and the text ("I'm happiest hanging out with a big group of friends") suggested an extrovert.
A second profile had both a photo (a person alone on a park bench) and text ("I'm happiest curled up in my room with a good book") that suggested an introvert.
The other two profiles were mixed, with the photo suggesting an extravert and the text an introvert, and vice versa.
The question the researchers wanted to answer was which mattered more -- the photo or the text -- in deciding whether the person was an extrovert or an introvert.
Results showed the photo was generally most important, Van Der Heide said.
When the extraverted photo was shown, it barely mattered whether the text suggested the person was an introvert or extrovert -- most participants rated the person as an extravert.
"It didn't matter what the profile text said -- what mattered was the photograph," Van Der Heide said.
But if the photograph suggested an introvert, people really did pay attention to the text. If the text also suggested an introvert, participants rated the person as such. But if the text suggested the person was an extravert, participants rated them as slightly less introverted.
"They were still seen as introverted, because of their photo showing them alone on the park bench. But they got a little bump up in their extraversion rating because of their profile text suggesting they were extraverted."
These results support a theory that people generally pay closer attention to information that could be viewed as negative or not normal, Van Der Heide said.
On social networking sites such as Facebook, users expect people to showcase themselves as happy, successful and sociable.
"If the photograph fits that image, people have little reason to question his or her judgments about this person's characteristics," he said.
"But if the photo shows something we didn't expect -- someone who is more introverted, for example -- viewers want to read the text and do a little more interpretation."
These results are interesting, Van Der Heide said, because when people use text or photos alone to build an impression of someone, text may sometimes have a greater influence. This is especially true when conveying negative information.
In a separate study, 84 college students looked at one of the photos or read one of the text profiles used in the other experiment. But they had to rely simply on that text or that photo to rate the person's extraversion.
Results showed that the participants who read the introverted descriptions rated the person as significantly more introverted than did those who saw the introverted photos -- suggesting text was most influential. However, there was no significant difference between how participants rated the person described as extraverted and the person whose photo suggested extraversion.
"There are some cases where text may be more influential than photographs, particularly when they convey negative or unexpected information," he said.
Van Der Heide said he believes the results apply beyond Facebook to dating websites and other social networking sites. It should also apply to other traits beyond extraversion and introversion, such as social desirability and even political orientation. It all depends on what is shown in the photographs, and what clues viewers can glean from them.
The key is that people have certain expectations of the photos they view on social networking websites, he said.
"If your profile photo fits what they expect, observers may be unlikely to look very closely at the rest of your profile -- they have already decided how they feel about you.
"But if your photo is not quite normal -- either positively or negatively -- people are going to pay a lot more attention to what you wrote."

source : science daily

New Computers Respond to Students' Emotions, Boredom

Emotion-sensing computer software that models and responds to students' cognitive and emotional states -- including frustration and boredom -- has been developed by University of Notre Dame Assistant Professor of Psychology Sidney D'Mello, Art Graesser from the University of Memphis and a colleague from Massachusetts Institute of Technology. D'Mello also is a concurrent assistant professor of computer science and engineering.



The new technology, which matches the interaction of human tutors, not only offers tremendous learning possibilities for students, but also redefines human-computer interaction.
"AutoTutor" and "Affective AutoTutor" can gauge the student's level of knowledge by asking probing questions; analyzing the student's responses to those questions; proactively identifying and correcting misconceptions; responding to the student's own questions, gripes and comments; and even sensing a student's frustration or boredom through facial expression and body posture and dynamically changing its strategies to help the student conquer those negative emotions.
"Most of the 20th-century systems required humans to communicate with computers through windows, icons, menus and pointing devices," says D'Mello, who specializes in human-computer interaction and artificial intelligence in education.
"But humans have always communicated with each other through speech and a host of nonverbal cues such as facial expressions, eye contact, posture and gesture. In addition to enhancing the content of the message, the new technology provides information regarding the cognitive states, motivation levels and social dynamics of the students."
AutoTutor is an Intelligent Tutoring System (ITS) that helps students learn complex technical content in Newtonian physics, computer literacy and critical thinking by holding a conversation in natural language; simulating teaching and motivational strategies of human tutors; modeling students' cognitive states; using its student model to dynamically tailor the interaction to individual students; answering students' questions; identifying and correcting misconceptions; and keeping students engaged with images, animations and simulations. In addition to these capabilities, Affective AutoTutor adds emotion-sensitive capabilities by monitoring facial features, body language and conversational cues; regulating negative states such as frustration and boredom; and synthesizing emotions via the content of its verbal responses, speech intonation and facial expressions of an animated teacher.
D'Mello's study, titled "AutoTutor and Affective AutoTutor: Learning by Talking with Cognitively and Emotionally Intelligent Computers that Talk Back," that details this new technology will be published in special edition of ACM Transactions on Interactive Intelligent Systems that highlights innovative technology of the last decade.
"Much like a gifted human tutor, AutoTutor and Affective AutoTutor attempt to keep the student balanced between the extremes of boredom and bewilderment by subtly modulating the pace, direction and complexity of the learning task," D'Mello says.
Considerable empirical evidence has shown that one-on-one human tutoring is extremely effective when compared to typical classroom environments, and AutoTutor and Affective AutoTutor closely model the pedagogical styles, dialogue patterns, language and gestures of human tutors. They are also one of the few ITSs that help learning by engaging students in natural language dialogues that closely mirror human-human tutorial dialogues.
Tested on more than 1,000 students, AutoTutor produces learning gains of approximately one letter grade -- gains that have proven to outperform novice human tutors and almost reach the bar of expert human tutors.

Recent Research in Science and Technology


There are several ways nanocomputers might be built, using mechanical, electronic, biochemical, or quantum technology. It is unlikely that nanocomputers will be made out of semiconductor transistors (Microelectronic components that are at the core of all modern electronic devices), as they seem to perform significantly less well when shrunk to sizes under 100 nanometers.The research results summarized here also suggest that many useful, yet strikingly different solutions may exist for tolerating defects and faults within nanocomputing systems. Also included in the survey are a number of software tools useful for quantifying the reliability of nanocomputing systems in the presence of defects and faults.

Japan-tsunami-earthquake-Pictures-recovery-3-months-later.


  • Japan's economy shrank 0.9 percent in the first quarter but recovery is expected between July and September
Just three months ago Japan was plunged into chaos after a cataclysmic earthquake sent a merciless tsunami crashing through towns and cities up and down the east coast.
The unforgiving tide of water obliterated tens of thousands of buildings, devouring almost anything in its path. Thousands of people died and hundreds of bodies have never been recovered.
The heart-breaking images of families desperately searching for loved ones amid the rubble of their homes sent shockwaves around the world.
Now, three months on, these images show the Japanese people remain undaunted by the havoc nature has wreaked on their homeland as step by step they rebuild their nation. 
The pleasure boat ''Hamayuri'' washed up on the rooftop of an inn by tsunami and a building have so far been removed in the town of Otsuchi, Iwate Prefecture, on April 6 (top) and on June 3 (bottom)
The pleasure boat ''Hamayuri'' washed up on the rooftop of an inn by tsunami and a building have so far been removed in the town of Otsuchi, Iwate Prefecture, on April 6, top, and on June 3, bottom.
A Shinto shrine gate and surroundings in the town of Otsuchi, Iwate Prefecture three days after the March 11 earthquake and tsunami and the same spot on June 3
A Shinto shrine gate and surroundings in the town of Otsuchi, Iwate Prefecture three days after the March 11 earthquake and tsunami and the same spot on June 3
But despite their progress, stark reminders of the work left to do means the resilience of this Asian country is still being tested. 
Headway in the clean-up has been made in the town of Otsuchi in Iwate Prefecture where the pleasure boat ''Hamayuri'', which was remarkably washed up on the rooftop of an inn, has been removed, along with a building shattered by the the wall of water.
Further down is an image of a Shinto shrine gate in the town three days after the March 11 disaster. 
The same spot on June 3 which shows thousands of tonnes of rubbish, which had lay smouldering in an almost post-apolcalyptic landscape, has been cleared, roads re-laid and power lines restored. 
Civilisation appears to have returned in Natori in Miyagi prefecture too. The first image shows a towering wall of ocean crashing through trees devastating homes and businesses lining the coast, tearing down power lines and drowning anything in its path.
A residential area being hit by the tsunami in Natori, Miyagi prefecture (top) and the same area, with only one house remaining on June 3 (bottom)
A residential area being hit by the tsunami in Natori, Miyagi prefecture, top, and the same area, with only one house remaining on June 3, bottom
A parking lot of a shopping centre filled with houses and debris in Otsuchi town, Iwate prefecture two days after the earthquake hit and the same area picture on June 3
A parking lot of a shopping centre filled with houses and debris in Otsuchi town, Iwate prefecture two days after the earthquake hit and the same area picture on June 3
Astonishingly just one house survived the wave and a lone digger is pictured having cleared away the once thriving community reduced to rubble. Hundreds of cars parked in the foreground remain abandoned and appear to be the only reminder of the devastation.
Similarly, the striking image of a ship atop tonnes of rubble in the Kesennuma in Miyagi prefecture on March 20 was projected around the world and became a symbol of the disaster.
The photograph shows grey smoke filled skies above a path of destruction, but three months on, much of the debris has been cleared, power lines restored and hope is on the horizon.
A car park in a shopping centre, filled with houses and debris in Otsuchi town in Iwate prefecture is also back on its feet and signs of life are returning. Parking spaces are clearly visible where piles of wood, bricks, and vehicles lay strewn just a few weeks ago.
A view of earthquake and tsunami-hit Kesennuma, Miyagi prefecture on March 15, top, and the same area pictured on June 3
A view of earthquake and tsunami-hit Kesennuma, Miyagi prefecture on March 15, top, and the same area pictured on June 3
The final image shows local people walking through debris on a street in Kesennuma, Miyagi Prefecture to get water 48 hours after the disaster. The same image on June 3 shows the massive tank which lay in the road has gone and a damaged house on the left side of the street has been cleared and restored. 
The 9.0 magnitude earthquake caused the worst crisis in Japan since the Second World War and left almost 28,000 people dead or missing. 
The clean-up bill is expected to top £184 billion and radiation fears from the stricken Fukushima nuclear plant are still growing after four of the reactors were damaged leading to radiation leaks. 

This week, an earless bunny was born near the reactor in north east Japan raising concerns the radiation could have long-term side effects. 
Following the blast and initial leaks Japanese officials told people living near the plant to stay indoors and turn of air conditioning and also to not drink tap water.
High levels of radiation are known to cause cancer and other health problems but scientists are not yet clear if the defect in the rabbit is linked to the blast.
Local residents walking through debris on a street in Kesennuma, Miyagi Prefecture, to get water 48 hours after the disaster, top, and the same area on June 3 where a large tank and a damaged house on the left side of the street have been cleared away
Local residents walking through debris on a street in Kesennuma, Miyagi Prefecture, to get water 48 hours after the disaster, top, and the same area on June 3 where a large tank and a damaged house on the left side of the street have been cleared away
Japan's economy slipped into recession following the devastation and new data shows it shrank 0.9 percent in the first quarter of this financial year but experts say a recovery later this year as industry kicks into action.
Industrial output rose one per cent in April from a record decline in March. 
Manufacturers are making progress in restoring supply chains and ecnomists are predicting Gross Domestic Project to begin expanding again between July and September.   
A view of earthquake and tsunami-hit Kesennuma, Miyagi prefecture on March 20, left, and the same area after the building and debris was removed on June 3
A view of earthquake and tsunami-hit Kesennuma, Miyagi prefecture on March 20, left, and the same area after the building and debris was removed on June 3
Top, buildings are surrounded by debris in Onagawa, Miyagi prefecture, northeastern Japan, on March 16, 2011, days after the devastating earthquake and tsunami hit the area; and the same area, bottom, with the debris almost cleared
Top, buildings are surrounded by debris in Onagawa, Miyagi prefecture, northeastern Japan, on March 16, 2011, days after the devastating earthquake and tsunami hit the area; and the same area, bottom, with the debris almost cleared
The coast is filled with destroyed houses and debris at Ishinomaki, Miyagi prefecture, northeastern Japan, one day after the earthquake and tsunami hit, top, and the same area, bottom, with the houses and debris cleared as photographed on June 3, 2011
The coast is filled with destroyed houses and debris at Ishinomaki, Miyagi prefecture, northeastern Japan, one day after the earthquake and tsunami hit, top, and the same area, bottom, with the houses and debris cleared as photographed on June 3, 2011
A burnt pickup truck lies among debris swept away by the tsunami
Marguerites are in bloom along a cleared street corner in the same area
A burnt pickup truck lies among debris swept away by the tsunami, top, and marguerites are in bloom along a cleared street corner in the same area June 3, in Kesennuma, Miyagi Prefecture, north-eastern Japan
Fire engines park among the debris as a search for missing people goes on in Rikuzentakata, Iwate prefecture, northeastern Japan, on March 18, 2011, days after the devastating earthquake and tsunami hit the area
The same area, bottom, with the debris almost cleared as photographed on June 6, 2011
Fire engines park among the debris as a search for missing people goes on in Rikuzentakata, Iwate prefecture, northeastern Japan, on March 18, days after the devastating earthquake and tsunami hit the area, top, and the same area, bottom, with the debris almost cleared as photographed on June 6
A ship swept away by the raging torrents lies among other debris on March 12, left, while a man on a bicycle pedals past a pedestrian on the same road June 4, 2011 in Miyako, Iwate Prefecture, north-eastern Japan
A ship swept away by the raging torrents lies among other debris on March 12, left, while a man on a bicycle pedals past a pedestrian on the same road June 4, 2011 in Miyako, Iwate Prefecture, north-eastern Japan
A group of firefighters head for a rescue operation March 13, top, while, bottom, a truck goes by the same road lined with electric poles June 6 in Minamisanriku, Miyagi Prefecture, northeastern Japan
A group of firefighters head for a rescue operation March 13, top, while, bottom, a truck goes by the same road lined with electric poles June 6 in Minamisanriku, Miyagi Prefecture, northeastern Japan


Read more: http://www.dailymail.co.uk/news/article-2001984/Japan-tsunami-earthquake-Pictures-recovery-3-months-later.html#ixzz1pZNP4O2z