Darwin's theory specifies descent with modification through natural selection. What that means essentially (and as an over simplification) is that DNA - which we now know to be the engine of change in species - is copied wrong, on occasion, leading to a modified gene. Sometimes those modifications have consequences for the animal. In the case of human brain size, perhaps some early hominid had a gene coding for the additional split of neurons during it's prenatal life (all animals, even ants and beetles, have the same basic brain chemistry. The main difference is that, during development, higher animals' brains are told to keep producing neurons, thus increasing in size to accommodate. Our brains produce the most neurons per overall surface area). So this hominid, and it's offspring, and maybe some relatives all have slightly better brains than their contemporaries allowing them greater powers of abstract thought, communication, and organization...MAYBE. They soon start out competing their neighbors for Natural Resources thereby increasing their numbers though better food, shelter, etc (again, this is all hypothetical and oversimplified). Soon their numbers are so great, they completely overwhelm the competing populations whose numbers crash. They are, unwittingly, moving toward becoming a new species, over thousands of generations, with slightly bigger brains. With the better food (mostly protein) comes the fuel to support the development of such large brains.
The same is true for all modifications from giraffe necks to whale spouts. They developed overtime through a series of accidents that worked in the animal's favor environmentally.
The theory of lateralization was developed to explain this phenomenon. The fields of brain study are always changing as scientists and psychologists learn more and more about how the brain functions.
how should i know find it your self horse brain ......haha wow your funny, *sarcasm* :(
Rossend Pujadas has written: 'The brain, mastermind of evolution?' -- subject(s): Brain, Evolution
your a dog yo
I know Christian biology teachers who dismiss the theory of evolution all together. But some manage to use only their "logical" part of their brain when it comes to evolution and think that the seven days mentioned in the Bible were simply figurative when He "evolutioned" everything into being.
Gerhardt von Bonin has written: 'The evolution of the human brain' -- subject(s): Accessible book, Brain, Evolution, Human evolution, Man, Origin, Hersenen, Evolutie, Somatologia Humana 'Essay on the cerebral cortex' -- subject(s): Brain 'The neocortex of Macaca mulatta' -- subject(s): Brain, Monkeys
Evolution increased brain size.
The brain is the result of the evolution through natural selection over many millions of years.
The Big Brain Theory - 2013 is rated/received certificates of: USA:TV-PG
To explain how brain scanners work
Physiological psychology includes any ideas that relate biology and neurosciences to behavior and emotions. Evolutionary psychology uses the theory of evolution to help explain behavior in humans and other animals. Cognitive psychology looks at the mind rather than the brain and examines healthy vs unhealthy thinking.
Increased brain size via evolution.
Harry J. Jerison has written: 'Experiments on vigilance' -- subject(s): Performance, Vigilance (Psychology) 'Brain size and the evolution of mind' -- subject(s): Brain, Evolution, Physiology
The computer is digital whereas the brain is analog.
brain drain is the transfering of the professional from the other countries
No, the "theory" of creationism says that god created everything. The theory of evolution says that everything on earth has evolved to its current state from other, similar lifeforms, through processes such as natural selection.
Any job in biology. Bio-medicine uses evolutionary theory to predict what type of seasonal flu vaccine to produce for the coming year. Neurology uses evolutionary theory to predict the workings of the human brain. Taxonomic sections of biology use evolutionary theory to classify organisms by their evolutionary relatedness. These are just a few examples, but all of biology is underpinned by evolutionary theory.
Robin Dunbar proposed, based on primate research, a relation between brain size and the number of social relationships an individual can maintain. Dunbar proposed, furthermore, that the evolution of language greatly reduced the mental effort required to maintain the same number of social relationships. How this all relates to the evolution of the brain is not immediately evident to me, although it undoubtedly does.
I can distinguish creation theory by saying that it is not a theory, but an ideology that has not a scintilla of evidence in support of it. Evolution, the change in allele frequency over time in a population of organisms, is a fact. The theory of evolution, which is the nonrandom survival of randomly variant replicators, explains the fact of evolution. Naturally, man, being a animal is subject to evolutionary forces.
Evolution of brain is called cephalization. Worms are found to have the simplest brain mechanism and have simple straight forward nervous system i-e head to tail.
The cortex means "cork". It is called this because it is like the outer layer of a tree. This "new" brain was laid down last in the evolution of the brain in our species.
The development of a new area of science provides new insights that may not have been around when the original theory was created. For example, a psychological theory created to explain an aspect of human interaction may be altered by advances in the field of neurology if different brain activity is discovered to be occurring than was originally believed when the theory was created.
The scientific theory of continental drift was not immediately accepted by geologists.