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See Also
See Again
© Shutterstock
0 / 29 Fotos
Are men and women wired differently?
- Questions about whether or not men and women are wired differently have raged for centuries. But do men and women really have different brains?
© Shutterstock
1 / 29 Fotos
Neurosexism
- Actually, is there such a thing as neurosexism, and is the search for male and female distinctions inside the skull worth the effort? Well, it depends on who you talk to.
© Shutterstock
2 / 29 Fotos
Link between brain structure and behavior
- According to a 2021 study published by the National Center for Biotechnology Information (NCBI), on average, men and women differ in brain structure and behavior, raising the possibility of a link between sex differences in brain and conduct.
© Shutterstock
3 / 29 Fotos
A weak association
- The study, however, found only a weak association between brain size and behavioral differences.
© Shutterstock
4 / 29 Fotos
Is the brain gendered?
- Furthermore, the basis of average differences in male and female behavior—for example, specific cognitive abilities and personality traits—is not well understood and remains open to interpretation. But the question remains: is the brain gendered?
© Shutterstock
5 / 29 Fotos
Male or female?
- A paper published on February 2024 by a research group from Stanford University suggests that it is.
© Shutterstock
6 / 29 Fotos
AI-led research
- The research group used an artificial intelligence (AI) neural network model to look at brain scans to see if it could "reliably" and "robustly" tell female and male brains apart.
© Shutterstock
7 / 29 Fotos
Can an algorithm provide the answer?
- The aim was whether the algorithm can tell if the brain patterns being looked at were from women or men. The answer was that it could.
© Shutterstock
8 / 29 Fotos
Regional differences
- Brain scans showed that there are differences in regions responsible for certain functions.
© Shutterstock
9 / 29 Fotos
Pinpointing brain function
- Most of these differences are in the default mode network (the part of the brain in which we store key elements of social knowledge acquired by interaction), and the striatum and limbic network—areas involved in a wide range of processes including daydreaming, remembering the past, planning for the future, making decisions, and smelling.
© Getty Images
10 / 29 Fotos
Findings made public
- The findings were published by the Proceedings of the National Academy of Sciences (PNAS) and carried by various media outlets.
© Shutterstock
11 / 29 Fotos
Another piece to the puzzle
- According to the team at Stanford, these results have effectively added a new piece to the puzzle. They believe their research adds weight to the theory that biological sex shapes the brain. But not everyone's convinced.
© Shutterstock
12 / 29 Fotos
A controversial subject
- Searching for a 'male' and 'female' brain is nothing new. But it's a controversial subject that has its detractors.
© Shutterstock
13 / 29 Fotos
Unlocking the truth
- The scientific journal Nature reminds us that "the history of sex-difference research is rife with innumeracy, misinterpretation, publication bias, weak statistical power, inadequate controls, and worse."
© Shutterstock
14 / 29 Fotos
History of bias
- Indeed, neurosexism has endured since the 19th century. Then, scientists and philosophers quickly drew conclusions about the mental inferiority of women, or their lack of aptitude for certain tasks, on the basis of alleged anatomical differences between male and female brains. Pictured in 1931 is a woman seated with a psychograph, or phrenology machine, on her head. The psychograph claimed to mechanically discern a subject's aptitudes in a number of mental faculties.
© Getty Images
15 / 29 Fotos
The "missing five ounces"
- However, early research into measurements of skull capacity demonstrated that the brains of men were, on average, somewhat bigger and heavier than those of women. On this basis, some commentators advanced the so-called "missing five ounces" theory, which they believed was key to men's supposedly superior abilities.
© Shutterstock
16 / 29 Fotos
Bigger body, bigger brain
- In fact, notes New Scientist, the simple explanation is that bigger bodies require more brain tissue to run them—a relationship seen across animal species.
© Shutterstock
17 / 29 Fotos
Promoting the "sex differences" agenda
- While not wanting to draw any inferences about the value, or even the meaning, of the differences the Stanford team found, neuroscientist Gina Rippon, writing in The Guardian, warned of propagating a "hunt the sex differences" agenda.
© Shutterstock
18 / 29 Fotos
Looking for sex-specific differences in the brain
- "There seems to be an implacable need, even in today's world, to find a nice set of biologically programmed, sex-specific differences in the brain, and agree that these must be the basis of any female-male differences in behavior, or temperament, or ability and achievement," argued Rippon, who is emeritus professor of cognitive neuroimaging at the Aston Brain Centre at Aston University in England.
© Shutterstock
19 / 29 Fotos
Identifying brain conditions
- Researchers at Stanford, meanwhile, expressed optimism that their work would help shed light on brain conditions that affect men and women differently.
© Getty Images
20 / 29 Fotos
Strengthening the fight against neurological conditions
- They cited the fact that autism and Parkinson's are more common in men, whereas multiple sclerosis and depression are more common in women.
© Getty Images
21 / 29 Fotos
Motivation behind the study
- Commenting further, the study's senior author Vinod Menon, professor of psychiatry and behavioral sciences at Stanford, said in a statement: "A key motivation for this study is that sex plays a crucial role in human brain development, in aging, and in the manifestation of psychiatric and neurological disorders."
© Shutterstock
22 / 29 Fotos
Understanding psychiatric and neurological disorders
- "Identifying consistent and replicable sex differences in the healthy adult brain is a critical step toward a deeper understanding of sex-specific vulnerabilities in psychiatric and neurological disorders," added Menon.
© Shutterstock
23 / 29 Fotos
A contentious subject
- Still, the notion that there are cognitive differences between men and women based on brain size remains a contentious one.
© Shutterstock
24 / 29 Fotos
Gender issues
- But with gender issues now one of the most talked about subjects of the 21st century, the question of whether there are differences between the brains of men and women has been placed further under the microscope.
© Shutterstock
25 / 29 Fotos
Equal but different?
- "If we continue to buy in to the argument that differences between men and women are hardwired, permanent and intractable, then any attempts to address inequalities will all too easily be dismissed," underlined Rippon.
© Shutterstock
26 / 29 Fotos
Nothing should be overlooked
- But Stanford's Vinod Menon warns that "overlooking sex differences in brain organization could lead us to miss key factors underlying neuropsychiatric disorders."
© Shutterstock
27 / 29 Fotos
Maintain a cautious approach
- So while AI-led research is cutting through historical discrimination and gender politics to get to the truth about differences between the brains of men and women, the attitude adopted by many scientists is that any results need to be interpreted cautiously. Sources: (NCBI) (PNAS) (The Guardian) (Nature) (New Scientist) (Stanford Medical Magazine) See also: Are you left-brained or right-brained?
© Shutterstock
28 / 29 Fotos
© Shutterstock
0 / 29 Fotos
Are men and women wired differently?
- Questions about whether or not men and women are wired differently have raged for centuries. But do men and women really have different brains?
© Shutterstock
1 / 29 Fotos
Neurosexism
- Actually, is there such a thing as neurosexism, and is the search for male and female distinctions inside the skull worth the effort? Well, it depends on who you talk to.
© Shutterstock
2 / 29 Fotos
Link between brain structure and behavior
- According to a 2021 study published by the National Center for Biotechnology Information (NCBI), on average, men and women differ in brain structure and behavior, raising the possibility of a link between sex differences in brain and conduct.
© Shutterstock
3 / 29 Fotos
A weak association
- The study, however, found only a weak association between brain size and behavioral differences.
© Shutterstock
4 / 29 Fotos
Is the brain gendered?
- Furthermore, the basis of average differences in male and female behavior—for example, specific cognitive abilities and personality traits—is not well understood and remains open to interpretation. But the question remains: is the brain gendered?
© Shutterstock
5 / 29 Fotos
Male or female?
- A paper published on February 2024 by a research group from Stanford University suggests that it is.
© Shutterstock
6 / 29 Fotos
AI-led research
- The research group used an artificial intelligence (AI) neural network model to look at brain scans to see if it could "reliably" and "robustly" tell female and male brains apart.
© Shutterstock
7 / 29 Fotos
Can an algorithm provide the answer?
- The aim was whether the algorithm can tell if the brain patterns being looked at were from women or men. The answer was that it could.
© Shutterstock
8 / 29 Fotos
Regional differences
- Brain scans showed that there are differences in regions responsible for certain functions.
© Shutterstock
9 / 29 Fotos
Pinpointing brain function
- Most of these differences are in the default mode network (the part of the brain in which we store key elements of social knowledge acquired by interaction), and the striatum and limbic network—areas involved in a wide range of processes including daydreaming, remembering the past, planning for the future, making decisions, and smelling.
© Getty Images
10 / 29 Fotos
Findings made public
- The findings were published by the Proceedings of the National Academy of Sciences (PNAS) and carried by various media outlets.
© Shutterstock
11 / 29 Fotos
Another piece to the puzzle
- According to the team at Stanford, these results have effectively added a new piece to the puzzle. They believe their research adds weight to the theory that biological sex shapes the brain. But not everyone's convinced.
© Shutterstock
12 / 29 Fotos
A controversial subject
- Searching for a 'male' and 'female' brain is nothing new. But it's a controversial subject that has its detractors.
© Shutterstock
13 / 29 Fotos
Unlocking the truth
- The scientific journal Nature reminds us that "the history of sex-difference research is rife with innumeracy, misinterpretation, publication bias, weak statistical power, inadequate controls, and worse."
© Shutterstock
14 / 29 Fotos
History of bias
- Indeed, neurosexism has endured since the 19th century. Then, scientists and philosophers quickly drew conclusions about the mental inferiority of women, or their lack of aptitude for certain tasks, on the basis of alleged anatomical differences between male and female brains. Pictured in 1931 is a woman seated with a psychograph, or phrenology machine, on her head. The psychograph claimed to mechanically discern a subject's aptitudes in a number of mental faculties.
© Getty Images
15 / 29 Fotos
The "missing five ounces"
- However, early research into measurements of skull capacity demonstrated that the brains of men were, on average, somewhat bigger and heavier than those of women. On this basis, some commentators advanced the so-called "missing five ounces" theory, which they believed was key to men's supposedly superior abilities.
© Shutterstock
16 / 29 Fotos
Bigger body, bigger brain
- In fact, notes New Scientist, the simple explanation is that bigger bodies require more brain tissue to run them—a relationship seen across animal species.
© Shutterstock
17 / 29 Fotos
Promoting the "sex differences" agenda
- While not wanting to draw any inferences about the value, or even the meaning, of the differences the Stanford team found, neuroscientist Gina Rippon, writing in The Guardian, warned of propagating a "hunt the sex differences" agenda.
© Shutterstock
18 / 29 Fotos
Looking for sex-specific differences in the brain
- "There seems to be an implacable need, even in today's world, to find a nice set of biologically programmed, sex-specific differences in the brain, and agree that these must be the basis of any female-male differences in behavior, or temperament, or ability and achievement," argued Rippon, who is emeritus professor of cognitive neuroimaging at the Aston Brain Centre at Aston University in England.
© Shutterstock
19 / 29 Fotos
Identifying brain conditions
- Researchers at Stanford, meanwhile, expressed optimism that their work would help shed light on brain conditions that affect men and women differently.
© Getty Images
20 / 29 Fotos
Strengthening the fight against neurological conditions
- They cited the fact that autism and Parkinson's are more common in men, whereas multiple sclerosis and depression are more common in women.
© Getty Images
21 / 29 Fotos
Motivation behind the study
- Commenting further, the study's senior author Vinod Menon, professor of psychiatry and behavioral sciences at Stanford, said in a statement: "A key motivation for this study is that sex plays a crucial role in human brain development, in aging, and in the manifestation of psychiatric and neurological disorders."
© Shutterstock
22 / 29 Fotos
Understanding psychiatric and neurological disorders
- "Identifying consistent and replicable sex differences in the healthy adult brain is a critical step toward a deeper understanding of sex-specific vulnerabilities in psychiatric and neurological disorders," added Menon.
© Shutterstock
23 / 29 Fotos
A contentious subject
- Still, the notion that there are cognitive differences between men and women based on brain size remains a contentious one.
© Shutterstock
24 / 29 Fotos
Gender issues
- But with gender issues now one of the most talked about subjects of the 21st century, the question of whether there are differences between the brains of men and women has been placed further under the microscope.
© Shutterstock
25 / 29 Fotos
Equal but different?
- "If we continue to buy in to the argument that differences between men and women are hardwired, permanent and intractable, then any attempts to address inequalities will all too easily be dismissed," underlined Rippon.
© Shutterstock
26 / 29 Fotos
Nothing should be overlooked
- But Stanford's Vinod Menon warns that "overlooking sex differences in brain organization could lead us to miss key factors underlying neuropsychiatric disorders."
© Shutterstock
27 / 29 Fotos
Maintain a cautious approach
- So while AI-led research is cutting through historical discrimination and gender politics to get to the truth about differences between the brains of men and women, the attitude adopted by many scientists is that any results need to be interpreted cautiously. Sources: (NCBI) (PNAS) (The Guardian) (Nature) (New Scientist) (Stanford Medical Magazine) See also: Are you left-brained or right-brained?
© Shutterstock
28 / 29 Fotos
Are male and female brains different?
Scientists are of two minds about the findings of a new study
© Shutterstock
The results of a study published in February 2024 by a team of researchers at Stanford University have shed new light on the controversial subject of whether men and women have different brains. According to the authors of the study, AI-generated brain scans do indeed indicate that males and females are wired differently, and that contrasts in cognitive ability do exist. But the wider scientific community is divided on the issue, with some academics warning of the propagation of a "hunt the sex differences" agenda.
So, is searching for a 'male' and 'female' brain a worthwhile pursuit, or just a waste of time? Click through and make up your own mind.
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