Smart Girls Eat Fish. Girls who eat more omega-3 fatty acids outsmart those who eat higher amounts of omega-6 fatty acids, according to new research. As a result of this and other studies, government dietary recommendations--especially those aimed at pregnant women--should emphasize fish over soy and corn oils, which are respectively high in these fatty acids, says Joseph Hibbeln, a psychiatrist and lipid biochemist at the National Institute on Alcohol Abuse and Alcoholism in Bethesda, Maryland. "We don't want the brain to be deficient in its critical nutrients during development. " The omega-3 advantage was first hinted at in studies of distribution of body fat. To test this hypothesis, Lassek and Gaulin analyzed data on about 4000 girls and boys between the ages of 6 and 16. The children had participated in the Third National Health and Nutrition Examination Study, part of a U.S. project to assess the health and nutritional status of kids and adults.
Neocortex. A representative column of neocortex. Cell body layers are labeled on the left, and fiber layers are labeled on the right. Anatomy[edit] The neocortex consists of the grey matter, or neuronal cell bodies and unmyelinated fibers, surrounding the deeper white matter (myelinated axons) in the cerebrum. The neurons of the neocortex are also arranged in vertical structures called neocortical columns. The neocortex is derived embryonically from the dorsal telencephalon, which is the rostral part of the forebrain. Evolution[edit] The neocortex is the newest part of the cerebral cortex to evolve (hence the prefix "neo"); the other parts of the cerebral cortex are the paleocortex and archicortex, collectively known as the allocortex. The six-layer cortex appears to be a distinguishing feature of mammals; it has been found in the brains of all mammals, but not in any other animals.[1] There is some debate,[6][7] however, as to the cross-species nomenclature for neocortex.
Neocortex ratio[edit] Human brain. The human brain has the same general structure as the brains of other mammals, but has a more developed cortex than any other. Large animals such as whales and elephants have larger brains in absolute terms, but when measured using the encephalization quotient which compensates for body size, the human brain is almost twice as large as the brain of the bottlenose dolphin, and three times as large as the brain of a chimpanzee.
Much of the expansion comes from the part of the brain called the cerebral cortex, especially the frontal lobes, which are associated with executive functions such as self-control, planning, reasoning, and abstract thought. The portion of the cerebral cortex devoted to vision is also greatly enlarged in humans. The human cerebral cortex is a thick layer of neural tissue that covers most of the brain. This layer is folded in a way that increases the amount of surface that can fit into the volume available. Structure[edit] Human brain viewed from below Four lobes[edit] Lateralization of brain function. The human brain is divided into two hemispheres–left and right. Scientists continue to explore how some cognitive functions tend to be dominated by one side or the other; that is, how they are lateralized. The longitudinal fissure separates the human brain into two distinct cerebral hemispheres, connected by the corpus callosum.
The hemispheres exhibit strong, but not complete, bilateral symmetry in both structure and function. For example, structurally, the lateral sulcus generally is longer in the left hemisphere than in the right hemisphere, and functionally, Broca's area and Wernicke's area are located in the left cerebral hemisphere for about 95% of right-handers, but about 70% of left-handers.[1] Broad generalizations are often made in popular psychology about one side or the other having characteristic labels, such as "logical" for the left side or "creative" for the right.
The extent of any modularity, or specialization of brain function by area, remains under investigation. Helmuth Nyborg. Helmuth Sørensen Nyborg (born 5 January 1937) is a former professor of developmental psychology at Aarhus University, Denmark and Olympic canoeist. His main research topic is the connection between hormones and intelligence. Among other things, he has worked on increasing the intelligence of girls with Turner's syndrome by giving them estrogen. His research has been widely criticized, and in 2007, after having been accused of scientific misconduct, he received a warning from Aarhus University for producing research of unacceptably low quality.
In 2007 he retired.[1][2] Nyborg is a controversial figure among the Danish public for his research on topics such as the inheritance of intelligence and the relationship between sex and intelligence. 2005 controversial paper[edit] 2011 "Revolt Against Civilization" Seminar[edit] 2011 controversy[edit] Olympic Kayaking[edit] Nyborg competed as a sprint canoer in the early 1960s.
Publications[edit] See also[edit] Sex and intelligence Notes[edit] Sex and intelligence. "Sex differences" are sexually dimorphic traits hypothesized to be evolved consequences of sexual selection.[1][2] Research spans several scientific disciplines investigating psychological and behavioral differences between men and women due to: Genetics and epigenetics.[3] Brain structure and function.[4][5][6] Hormones [7] Psychological traits such as emotion, motivation, cognition, and sexuality.[8][9][10][11][12] Differential socialization.[13][14] Since all behaviors are phenotypes—complex interactions of nature and nurture—researchers especially investigate how biology and environment interact to produce sex differences.[1][15][16][17] History[edit] In his 1859 book On the Origin of Species Charles Darwin hypothesized that sexually dimporhic traits were an evolved product of the process he termed sexual selection.
In the distant future I see open fields for far more important researches. Genetics and epigenetics[edit] Brain structure and function[edit] Hormones[edit] Sexual behavior[edit]