4 Answers

  1. On average, a man's brain is 10% larger than a woman's. At the same time, the female brain works more efficiently and faster than the male brain due to the fact that it contains more connectors and nerve cells.
    Over time, the brain evolves. The average male brain mass in 1860 was 1,370 g. Now the brain of the average man weighs 1425 g, by old age its mass decreases to 1395 g. The record weight of the female brain was 1565 g, the male-2049 g.
    But 9-meter dinosaurs had a brain weighing 70 g and the size of a walnut.

  2. American scientists have identified gender differences in the structural organization of connections in the cerebral cortex. …

    Scientists focused on the organization of neural connections in the cortex and subcortical layer: they found out which parts of the brain and how many connections are connected…For their research, they used the method of diffusion tensor visualization … This method allows you to track the pathways of axons …

    Brain scans were taken from 949 people: 428 men and 521 women. The age of people ranged from 8 to 22 years, so the sample was divided into three age groups-children, teenagers, and youth…

    As a result of processing the scanning data, scientists obtained a number of quantitative characteristics for each structure and each region of the cortex (a total of 95 localizations accepted in neuroscience). For all localizations, the number of links with each-with-each was calculated. Next, maps and corresponding quantitative connectivity indicators were compiled for the structures and lobes of the cerebral cortex. These indicators and link maps were markedly different for men and women.

    It is clearly noticeable that men have better connections within each hemisphere, and women have better interhemispheric connections. It is important to note that men show connections in the hemispheres of the cerebellum, while women do not. This difference in structure is established in adolescence: if in boys and girls differences are only outlined, then in adolescent boys intrahemispheric connections are already well expressed. In adolescent girls, interhemispheric connections are formed first in the frontal lobe, and then in girls, connections of the temporal lobes are strengthened; at the same time, intrahemispheric connections are established only in adult girls, in younger and older girls they are still weak and are not detected in this analysis.

    In addition to gender differences in the orientation of connections, there was also a difference in the modular organization of the cortex in men and women. Modules are highly connected areas where the number of connections within a module is greater than between different modules. The modules themselves are most clearly detected in men, while they are less pronounced in women. The only area of the brain where modularity is relatively weak in men is the cerebellum.

    How do these structural differences in the structure of the cortex affect the behavior and skills of men and women? It is known that connections within the hemispheres and within each of the cortical regions as a whole serve the reactions “from intention to action”, and the cerebellum mediates the motor functions of body parts. Interhemispheric connections of the cerebellum provide effective coordination of actions. And all this is best organized in men, in particular, because of this, they are better able to solve problems on spatial thinking, tests for speed and accuracy. Therefore, on average, the male brain is designed to serve for effective and rapid performance of motor functions.

    Interhemispheric connections establish the integration of analytical and intuitive information. Hence, the ability to perform tasks for memorizing faces and social tests is higher. So the female brain is designed to provide the owner with good social skills. …

    https://elementy.ru/novosti_nauki/432176/Mozg_muzhchin_i_zhenshchin_otlichaetsya_orientatsiey_neyronnykh_svyazey

  3. You can start with the fact that the brain of a man differs from the brain of a woman in size-it is larger and heavier (in men, of course). Since the biochemical processes in the organisms of M and W proceed differently,the brains, let's say, also function differently, forming a certain pattern of behavior and thinking, as well as a greater tendency to one or another perception of the world around them and diseases (for example, Alzheimer's is more common in women, and brain cells are subject to more rapid degradation, and in men-more often attention deficit disorder). Men are better able to navigate in space and coordinate their actions. I confirm this with my example – I have a pronounced topographic cretinism))) But women have better developed social cognition and learning skills. This is due to the difference in the development of neural connections: men have better connections within the hemispheres, while women have better connections between the hemispheres:)

  4. Read Savelyev (joke). In terms of intelligence, there are no differences. You can read it here. Maccoby, C. Jacklin. The Psychology of Sex Differences (I haven't seen it in Russian). The authors of the book have done a titanic job analyzing research and other books about gender differences.

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