African Americans and Caucasians viewing African American faces display extremely similar changes in the activity of brain structures that respond to emotional events, a new UCLA study finds. Lieberman, assistant professor of psychology at UCLA and lead author of the study. The findings will be published May 8 in the online version of Nature Neuroscience, and later in the print version. Five out of eight African Americans 63 percent responded with significantly more amygdala activity when presented with expressionless photographs of African Americans than when they were shown expressionless photographs of Caucasians, Lieberman and his colleagues found. Seven of 11 Caucasians 64 percent in the study also responded with greater activity in the amygdala when viewing the African American photographs. Although a third of participants in each race did not show this effect, no participant in the study responded with greater amygdala activity to the Caucasian photographs than to the African American photographs, Lieberman said.

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Also called mountain lion, panther, puma. a large, tawny cat, Felis concolor, of North and South America: now greatly reduced in number and endangered in some areas. Informal. an older woman who seeks sexual relationships with much younger men: He’s in his twenties, but he prefers cougars in their forties and fifties to young women his own age.

Erick Kristian Exclusivity is one of many ways to approach a relationship. Exclusively dating someone means that both parties have agreed to only see each other romantically. They have severed any other romantic ties and are not accepting new suitors. They are monogamous and present themselves as a couple to the world. When people date exclusively, they are taking themselves out of the dating game to devote time and love to one person.

The Exclusive Question A couple is exclusive when both parties decide and make a conscious effort to only be in a romantic relationship with each other. A couple may discuss becoming exclusive or the nature of their relationship may indicate that they are exclusive. For example, if a couple lives together, introduces each other as boyfriend and girlfriend, or spends holidays with each other’s families, they are most likely exclusively dating.

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Every day yawned like a week —Donald Seaman Forty-five minutes passed, like a very slow cloud —Dylan Thomas Here [at a country inn] time swings idly as a toy balloon —Phyllis McGinley The hours weighed like centuries on his heart —Lawrence Durrell If time seems to pass so quickly, this is because there are no landmarks. Leisure is like a beautiful garment that will not do for constant wear —Anon Life goes like the river —Clifford Odets Like a run in a stocking.

Gass Time has moved on like a great flock of geese —Stephen Minot Time is a storm in which we are all lost —William Carlos Williams Time is like an enterprising manager always bent on staging some new and surprising production, without knowing very well what it will be —George Santayana Time is like a river made up of the events which happen, and its current is strong. No sooner does anything appear than it is swept away and another comes in its place, and will be swept away too —Marcus Aurelius Time is like money; the less we have of it to spare the further we make it go —Josh Billings Time is like some balked monster, waiting outside the valley, to pounce on the slackers who have managed to evade him longer than they should —James Hilton Time, like a flurry of wild rain, shall drift across the darkened pane —Charles G.

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Share Several women had some fairly melancholy musings on the subject of being a cougar. I feel so Demi Moore,’ a woman posted, in reference to Ms Moore’s doomed relationship with fellow actor Ashton Kutcher, who was 15 years her junior when their eight-year relationship crumbled in I feel like I am so attracted to much younger men but it’s going to leave me lonely in the end realistically. We’re in love but sometimes I wonder how long I can keep him happy. But I’m also covering up the pain of an unwanted divorce.

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The lion’s larynx is longest, giving it the most robust roar. All five extant members of the Panthera genus contain this elongated hyoid but due to differences in the larynx the snow leopard cannot roar. Threats The principal threats to big cats vary by geographic location, but primarily are habitat destruction and poaching. In Africa many big cats are hunted by pastoralists or government ‘problem animal control’ officers.

Certain protected areas exist that shelter large and exceptionally visible populations of lions, hyenas, leopards, and cheetahs, such as Botswana’s Chobe , Kenya’s Masai Mara , and Tanzania’s Serengeti. Rather, it is outside these conservation areas where hunting poses the dominant threat to large carnivores.

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So suggests new research that tracked changes in two genes thought to help regulate brain growth, changes that appeared well after the rise of modern humans , years ago. That the defining feature of humans — our large brains — continued to evolve as recently as 5, years ago, and may be doing so today, promises to surprise the average person, if not biologists.

Lahn and colleagues examined two genes, named microcephalin and ASPM, that are connected to brain size. If those genes don’t work, babies are born with severely small brains, called microcephaly. Using DNA samples from ethnically diverse populations, they identified a collection of variations in each gene that occurred with unusually high frequency.

In fact, the variations were so common they couldn’t be accidental mutations but instead were probably due to natural selection, where genetic changes that are favorable to a species quickly gain a foothold and begin to spread, the researchers report. Lahn offers an analogy: Medieval monks would copy manuscripts and each copy would inevitably contain errors — accidental mutations. Years later, a ruler declares one of those copies the definitive manuscript, and a rush is on to make many copies of that version — so whatever changes from the original are in this presumed important copy become widely disseminated.

Scientists attempt to date genetic changes by tracing back to such spread, using a statistical model that assumes genes have a certain mutation rate over time. For the microcephalin gene, the variation arose about 37, years ago, about the time period when art, music and tool-making were emerging, Lahn said. For ASPM, the variation arose about 5, years ago, roughly correlating with the development of written language, spread of agriculture and development of cities, he said.

Other scientists urge great caution in interpreting the research. That the genetic changes have anything to do with brain size or intelligence “is totally unproven and potentially dangerous territory to get into with such sketchy data,” stressed Dr.

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Synonyms of fireheart Here you will find one or more explanations in English for the word fireheart. Also in the bottom left of the page several parts of wikipedia pages related to the word fireheart and, of course, fireheart synonyms and on the right images related to the word fireheart. Definition of fireheart No result for fireheart. Meaning of fireheart from wikipedia – Puma Thomas Fireheart is a fictional character appearing in American comic books published by Marvel Comics.

The character is depicted as a villain The plot is about Fireheart, a ThunderClan warrior, attempting to prevent his best friend Graystripe As Fireheart struggles against the dog, Bluestar slams into the dog, who releases its grip on Fireheart.

What’s the slang definition of a puma? What’s the difference between a puma and a cougar.?

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puma meaning and pronunciation