Alpha Male can help you become instantly desirable to a wide range of women. This course is about Traits of Alph The Whole-Brain Child: 12 Revolutionary. PDF | On Oct 1, , Lay See Ong and others published Book Review: A Roadmap of the Male Brain. The Male Brain by Louann Brizendine, M.D. -- excerpt - Free download as PDF File .pdf), Text File .txt) or read online for free. From Louann Brizendine, M.D.
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The Male Brain by Louann Brizendine. Book Summary. The cast of male hormone characters and how they affect a male's brain: Testosterone: Zeus-‐ King of the. The "defend your turf" area -- dorsal premammillary nucleus -- is larger in the male brain and contains special circuits to detect territorial challenges by other. Read The Male Brain PDF - A Breakthrough Understanding of How Men and Boys Think by Louann Brizendine Harmony | From the author of.
In a similar fashion, es- trogen and oxytocin change the way teen girls perceive reality. As he reaches manhood, these behaviors will aid him in defending and aggressively protecting his loved ones. But fi rst, he will need to learn how to control these innate impulses. Over the past year, for no good reason, Jake began to feel much more irritable and angry.
He would quickly jump to the conclusion that people he encountered were being hostile toward him.
We might ask, Why did it seem the whole world suddenly turned on him? Unbeknownst to Jake, vasopressin was hormonally driving his brain to see the neutral faces of others as unfriendly.
They found that, under the influence of this hormone, the teen girls rated neutral faces as more friendly, but the boys rated the neutral faces as more unfriendly or even hostile. This may explain why the next time Jake saw Dylan, he thought his face looked angry when, in fact, Dylan was just bored. And in animal studies in which male voles were given vasopressin, it resulted in more territorial ag- gression and mate protection. In humans, a potential threat is often signaled by a facial expression.
But now everything was dif- ferent. Evolutionary biologists believe seeing faces as angrier than they actually are serves an adaptive purpose for males.
It allows them to quickly assess whether to fight or to run. At the same time, Jake and Dylan were also honing the ancient male survival skills of facial posturing and bluffi ng.
They were learning to hide their emotions. Some scientists be- lieve human males have retained beards and facial hair, even in warmer climates, in order to make them look fierce and hide their true emotions. And the angriest faces ty pi- cally belong to men with the highest testosterone, according to research. A study of teen boys in Sweden found that the ones with the most testosterone reacted more aggressively to threats. These boys with the highest testosterone also reported being more irritable and impatient.
And in another study, testoster- one levels rose in response to seeing an angry face, thus dialing up the brain circuits for aggression. So angry faces—real or imagined—ignite the male fighting spirit.
As Jake and Dylan had experienced in their shoving match, this sudden anger can trigger a knee-jerk reaction—often surprising even to the fighters. But as it was, this hor- mone cocktail was keeping an irritable and sometimes irratio- nal fi re smoldering. The teen male not only sees faces differently than he did as a boy; he also begins to perceive voices and other sounds differ- ently than he did before adolescence.
And his changing hor- mones can make him hear things differently than girls his age. The female brains intensely activated to both the white noise and to the music. The male brains, too, acti- vated to the music, but they deactivated to the white noise.
The screening system in their male brains was automatically turning off white noise. The best they could do was nod their heads and pretend to be listening.
And these dif- ferences, too, may be primed by hormones. You could hardly tell them apart—their clothes a few sizes too big, slop- pily hanging off their bodies, their hair purposely left messed up, their faces marked by unshaven facial hair and pimples. But in reality, just the opposite is true. Teens are painfully sensitive to the subtle, and some- times not so subtle, feedback they get from their peers.
Neither the compliment nor the criticism would have jiggled his brain circuits at all before puberty. Evolutionary psychologists theo- rize that brain circuits like the RCZ developed in primitive so- cieties to keep people from making social mistakes that could result in being ostracized by their clans or tribes.
Social ac- ceptance could make the difference between life and death. To teenagers, disapproval from peers feels like death.
Fitting in is everything. Ever since Dylan shoved him at the game, he daydreamed about beating him up. But he felt compelled to best him at something. Thus, Jake was now practicing the posturing techniques that men use to get respect. But as most men know, a show of anger is just as often only a bluff.
Still, with their high testosterone, increased irritability, and this new urge to be dominant, some teen boys do end up physically testing their place in the dominance hierarchy. My son and I had our toe-to-toe showdown when he was just shy of his sixteenth birthday.
I was awakened at two A. It woke me up from a dead sleep, and I was livid. Surprised by how intimi- dated I felt, I knew I had to stand my ground. For the moment, I had won. But as with Jake, his fight for independence was just beginning.
He was excited and confident. This prefight high happens not only with ath- letic events but with any competition that the male brain is participating in or even just watching. Studies show that winning releases more testosterone than losing, even in sports spectators. But the minute that something goes wrong, the feel-good chemicals bottom out as hopes of victory are dashed. Gonadal hormones play a role in maintaining the sex difference ovariectomy masculinizes the cortex of females [ 44 ].
Ventromedial Hypothalamic Nucleus VMN Involved in the control of lordosis, mounting, and norepinephrine release [ 45 ].
Females have less synapses in the ventrolateral VMN compared to males [ 8 ]. Organizational effects of aromatized testosterone appear to be crucial in establishing the masculine trait [ 47 ]. Substantia nigra pars compacta Made up almost entirely of dopaminergic neurons.
Dopamine is involved in control of motor activity [ 48 ]. A genetic component has been demonstrated in mice [ 50 ]. Conflicting evidence concerning the examples reported here particularly in the SDN-POA exist, and the interpretation of the data is often more complicated than this summary implies.
We have chosen to focus on neuroanatomical differences in the rat because the biological significance and origins of these differences are much clearer than in humans. Neuroanatomical differences in humans are also well-studied although ethical reasons preclude the experimental manipulations that have led to the findings detailed in Table 1.
This significantly limits the conclusions that can be drawn from any observations made in humans. Although these neuroanatomical differences are intriguing, most are limited because the practical or functional significance of these findings are unknown.
Discovering the significance of these differences is often difficult, even in rodents. A highly relevant case study highlighted in their review concerns the sexually dimorphic nucleus of the preoptic area SDN-POA.
The preoptic area POA has been implicated in the regulation of male copulatory behavior [ 14 ], but the link if any between the sex difference in SDN-POA size and behavior remains elusive.
Masculinizing the size of the SDN-POA in female rats does not result in a corresponding masculinization and defeminization of behavior [ 15 ]. Instead, the SDN-POA may be related to inhibition of female sexual behaviors [ 16 ; 17 ], which might not have been an obvious hypothesis given what was known about the POA previously.
As science and technology continue to advance, we will eventually know how to make sense of the mounting evidence of sex differences in the brain. For now, it is reasonable to suspect that such differences may help account for observed sex differences in behavior, neurological diseases, and cognitive abilities. SDN-POA exist, and the interpretation of the data is often more complicated than this summary implies.