Posts about bottleneck hypothesis ..

A statistical hypothesis is an examination of a portion of a population.
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Bottleneck Theories of Attention | Psychology Wiki's Blog

What was most relevant to humans, however, was the almost-complete extinction during the Kellwasser event of the tetrapods that had come ashore. Tetrapods did not reappear in the fossil record until several million years after the Kellwasser event, and has even been referred to as the Fammenian Gap (the is the Devonian’s last age). The Kellwasser event also appeared to be a period of low atmospheric oxygen content, and some evidence is the lack of charcoal in fossil deposits. Recent research has demonstrated that getting wood to burn at oxygen levels of less than 13-15% may be impossible. Because all periods of complex land life show evidence of forest fires, it is today thought that oxygen levels have not dropped below 13-15% since the Devonian, but during the “charcoal gap” of the late Devonian, when the first landlubbing tetrapods went extinct, oxygen levels reached their lowest levels since the , which must have impacted the first animals trying to breathe air instead of water. During the , there is no charcoal evidence at all, which leads to the notion that oxygen levels may have even dropped below 13%. This drop may be related to severe climatic stresses on the new forests, which are probably related to the ice age that the forests helped bring about due to their carbon sequestering. That is an attractively explanatory scenario, but the continues. The first seed plants probably appeared before the Kellwasser event, but it was not until after the Fammenian Gap that seed plants began to proliferate.

Below are examples of the only three kinds of dinosaurs known. (Source: Wikimedia Commons)
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Genetic drift, Founder effect and Bottlenecks …

Some people are more thoughtful. They donate to seemingly worthy causes and genuinely care about what is happening in the world, at least enough not to . When they hear of FE, they may ask their scientist relatives and associates what they know about it, they might contact their favorite environmental organization, and the like. The reply almost invariably is that FE is “impossible” or would be used to destroy the planet through either warfare or environmental destruction. They are advised to seek elsewhere for solutions to the world’s problems, and those seekers obediently drop the subject. They , FE seemed all-too-fantastic anyway, and such people generally fall into the category. If they live in the West, and I know the USA best, they probably listen to , watch and the , and follow the news on some “progressive” sites.

Certain information requires avery low threshold in activating awareness of a stimulus, such asour name in the cocktail party example.
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Chimps and orangutans have distinct cultures and ways of transmitting knowledge, usually confined to observation. They have regional variations in tool use, and orangutans can display startling intelligence in captivity that is not witnessed in the wild, which may be like country bumpkins moving to the city where they can develop their intellects or get a chance to use them. Chimps can negotiate, deceive, hunt in ranked groups, learn sign language, use more than one tool in a process, problem-solve, and engage in other human-like activities. Developmentally, a chimp is ahead of a human until about age two, and chimps can also express empathy. Research has suggested that imitation (performing somebody else’s actions) and empathy (feeling what somebody else feels) are related neurologically. Humans, however, are far better than chimps in their social-cognitive skills, which brings in the "theory of mind," which is guessing what others are thinking. This is suspected to be the key developmental trait that set humans apart from their cousins.

Extensions provided will facilitate the understanding of genetic drift, the founder effect, and bottlenecks.
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Mitochondrial bottleneck hypothesis of ..

The racist ideology that Hitler’s regime promoted was only a of what other imperial aspirants already had, and and he modeled his genocidal plans for Eastern Europe after what the . Hitler’s ideological crime was using racist ideology to make chosen people inferior. All such ideologies appealed to people’s egos as they elevated their and, with their superiority then self-evident, they could commit their awesome crimes with clear consciences, free of .

Hypothesis: Capacity bottlenecks cause mental conditions and ..

The militaries of World War II’s warring nations all committed heinous atrocities, but . Everybody was a cheerleader, but fabricating atrocity stories about the other side was typical. One reason why few believed early stories about the Jewish Holocaust as it was happening was that , so many thought that it was just more . Hitler realized that the British won the propaganda war in World War I and he was determined that Germany would win the next war of lies. studied the work of Bernays and other mind-control specialists to create the Third Reich’s message to its masses. Nazi and communist propaganda was relatively clumsy, in ways far behind the English and American art forms. Since the 1980s, I have seen Soviet and Chinese immigrants to the USA asked what the difference was between communist indoctrination systems and the Western media and educational institutions, and the answer was approximately: “In my homeland, everybody knew that they were being lied to, but Americans usually that they are fed.”