Does a primitive part of our brains make us less interested in mates who lose fights?

Female member of one fish species show potent response in a rude part of her mind when she watches her chosen male lose in a battle . Humans might also possess this overwhelming evolutionary imperative mood to find out the toughest , most combat - ready mate .

The African cichlid Pisces has a special part of its brain that fires up when the female has chosen a male as its preferred mate . If that take male person then later gets into a fight with another male , a more ancient part of the brain fires up , sending strong signals of anxiety to the rest of the brain . In the fish , this newfound headache is generally enough to make the female find oneself a new mate , and a more subtle form of this may well go on in human brains as well .

Researcher Julie Desjardins explains :

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“ It is the same as if a adult female were dating a pugilist and fancy her potential partner get the crap beat out of him really badly . She may not consciously say to herself , ‘ Oh , I ’m not attracted to this guy anymore because he ’s a loser , ’ but her spirit might change anyhow . ”

Her colleague Russ Fernald says the team is fairly certain that these responses occur not just in the Pisces the Fishes but humans and other brute as well . These mastermind areas are found in all vertebrate , he says , and they all act in more or less the same way .

Desjardins says humans could have this response to actions other than simply being knocked out . More complex or collateral forms of drop off a fight , like say miss a game of pickup basketball or even getting take place up for a promotion at work , could also set off this anxiousness response . And although a female doubting her vote out male is the one with the most evolutionary background in the rest of the animal land , it ’s perfectly potential all other potential combinations of likely mates could have this reaction – those just are n’t as well understood yet .

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That said , this should n’t be taken as validation that you lost your beloved because you come up shortly in a game of Monopoly . Desjardins is quick to point out that humans obviously have reason ability far , far in rise of fish , and the twinge of doubt they might sense after date their potential partner defeated can be far more easily dismissed than the almost instinctual distaste fish palpate in the same office .

Still , Desjardins propose that love really might have far more evolutionary undertone than we ever suspected :

You may not know immediately why you are draw in to a certain person , for instance . But it is these kind of unconscious internal reflexes that we have that are shared with all vertebrates , including Pisces the Fishes , that make us finger one room or another before we ’ve even had clip to cerebrate about it . ”

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