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Scientists Find Olfactory "Memory" Passed Between Generations In Mice 118

Posted by samzenpus
from the mama's-gonna-put-all-of-her-fears-into-you dept.
New submitter Raging Bool writes "The BBC is reporting that acquired phobias or aversions by mice can be passed on to subsequent generations. From the article: 'Experiments showed that a traumatic event could affect the DNA in sperm and alter the brains and behavior of subsequent generations. A Nature Neuroscience study shows mice trained to avoid a smell passed their aversion on to their 'grandchildren.''"
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Scientists Find Olfactory "Memory" Passed Between Generations In Mice

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  • Re:eureka (Score:3, Interesting)

    by Em Adespoton (792954) <slashdotonly.1.adespoton@spamgourmet.com> on Monday December 02, 2013 @07:25PM (#45579449) Homepage Journal

    So why are IQ scores getting higher (http://en.wikipedia.org/wiki/Flynn_effect)? The more we use our brain, the smarter our offspring get.

    Show me an IQ test that has stayed the same over time -- I think you'll find that as people get better training to score well on IQ tests, IQ tests also shift to be more "fair" to the population in general. I remember administering a "traditional" IQ test from the 50's to someone a few year's back -- they scored abysmally because the test assumed they'd understand concepts and turns of phrase that have completely left our society today. IQ tests used to be very male WASP-centric. Now the same test has a wider population base that it can sample from, making more North Americans score higher than they used to.

    (Older IQ tests assumed people had a basic sense of animal husbandry, farm crops [eg the difference between hay and wheat] and other non-urban things. Also, they assumed that a telephone was "dialled" via a rotor. These are just a few of the more obvious examples).

    Oh yes, and because IQ tests are supposed to be normalized, a proper IQ test will have the same distribution over a population year-over-year. You can't measure an increase in intelligence with IQ.

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