HomeLatest ThreadsGreatest ThreadsForums & GroupsMy SubscriptionsMy Posts
DU Home » Latest Threads » Forums & Groups » Main » General Discussion (Forum) » Many researchers taking a... » Reply #25

Response to cali (Reply #24)

Wed Jan 16, 2013, 04:37 AM

25. gee cali, & i thought we were friends now. but don't call me honey, honey.

 

Last edited Wed Jan 16, 2013, 05:27 AM - Edit history (1)

oh, & by the way, i can find 'research' and 'researchers' that support any position under the sun.

"many researchers" = 1 team at camh in toronto

big evidence for the inborn-ness of attraction to pre-pubescent children: 30% (of their sample of) pedophiles = left-handed.

omg!!!

but wait, 57% of presidents since reagan were left-handed!!!

are they at risk for pedophilia?

that would be ford, bush 1, clinton & obama.

In recent years the stigma has largely vanished; among other things, four of our last seven presidents — Ford, the elder Bush, Clinton, Obama — have been left-handed. (Reagan is sometimes cited as ambidextrous, and in his autobiography, Gerald Ford said he wrote with his right hand while standing.)

http://www.nytimes.com/2011/03/08/health/views/08klass.html


A pair of researchers from Northwestern University have for the first time analyzed real-world data to establish whether an existing hypothesis—that cooperation breeds same-handedness—is correct. Daniel M. Abrams, one of the researchers, explains to SciGuru:

"The more social the animal—where cooperation is highly valued—the more the general population will trend toward one side. The most important factor for an efficient society is a high degree of cooperation. In humans, this has resulted in a right-handed majority."

In fact, in an entirely cooperative society, the hypothesis suggests that everybody would have the same dominant hand. The reason? It should, in theory, help us share things like tools.

Fortunately, Abrams' analysis confirms the speculation. The remaining 10 percent of left-handers represents the fact that the human race isn't entirely cooperative.

What's more, a new model created by the researchers can even predict the percentage of left-handers in any group—humans, birds, or even baseball players—given data about the degrees of cooperation and competition within the social structure. The results are published in The Journal of the Royal Society Interface.

Interestingly, the study also confirms why there are a disproportionate number of left-handers in some sports~. While cooperation breeds same-handeness, competition favours the unexpected. In sports like baseball, boxing, or fencing, players are at an advantage if they're unusual.

http://gizmodo.com/5905296/science-explains-why-so-few-people-are-left+handed


The new model can predict accurately the percentage of left-handers in a group -- humans, parrots, baseball players, golfers -- based on the degrees of cooperation and competition in the social interaction.

“The accuracy of our model’s predictions when applied to sports data supports the idea that we are seeing the same effect in human society,” Abrams said.

Handedness, the preference for using one hand over the other, is partially genetic and partially environmental. Identical twins, who share exactly the same genes, don’t always share the same handedness.

http://www.sciguru.com/newsitem/13739/Shedding-Light-Southpaws-Sports-data-help-confirm-theory-explaining-left-handed-minority-general-p

CAMH researcher says:

Cantor’s research so far has led him to believe that pedophilia is a brain disorder, affecting the frontol temporal lobes. Also of note, a much higher amount of pedophiles are left handed compared to the general population. Cantor says, ”The only other groups that have rates of non-right-handedness that are that high are schizophrenics, people with bipolar disorder, people with autism.”

But he apparently doesn't keep up with the literature:

Brain. 2010 Oct;133(10):3113-22. doi: 10.1093/brain/awq160. Epub 2010 Jul 17.
Handedness, heritability, neurocognition and brain asymmetry in schizophrenia.

Higher rates of non-right-handedness (i.e. left- and mixed-handedness) have been reported in schizophrenia and have been a centrepiece for theories of anomalous lateralization in this disorder.

We investigated whether non-right-handedness is (i) more prevalent in patients as compared with unaffected siblings and healthy unrelated control participants; (ii) familial; (iii) associated with disproportionately poorer neurocognition; and (iv) associated with grey matter volume asymmetries.

We examined 1445 participants (375 patients with schizophrenia, 502 unaffected siblings and 568 unrelated controls) using the Edinburgh Handedness Inventory, a battery of neuropsychological tasks and structural magnetic resonance imaging data.

Patients displayed a leftward shift in Edinburgh Handedness Inventory laterality quotient scores as compared with both their unaffected siblings and unrelated controls, but this finding disappeared when sex was added to the model.

Moreover, there was no evidence of increased familial risk for non-right-handedness...Our data neither provide strong support for 'atypical' handedness as a schizophrenia risk-associated heritable phenotype nor that it is associated with poorer neurocognition or anomalous cerebral asymmetries.

http://www.ncbi.nlm.nih.gov/pubmed/20639549


There are *8* studies in the pubmed data base for a search combining 'left-handed' & 'autism'. the ones that are actual studies of the matter are based on sample sizes like *25*.

what kind of 'scientist' makes such claims as though they were established fact?

Reply to this post

Back to OP Alert abuse Link to post in-thread

Always highlight: 10 newest replies | Replies posted after I mark a forum
Replies to this discussion thread
Arrow 111 replies Author Time Post
AlphaCentauri Jan 2013 OP
el_bryanto Jan 2013 #1
randome Jan 2013 #2
AlphaCentauri Jan 2013 #4
Pisces Jan 2013 #39
zappaman Jan 2013 #75
hopemountain Jan 2013 #81
obamanut2012 Jan 2013 #87
obamanut2012 Jan 2013 #86
cecilfirefox Jan 2013 #3
Bradical79 Jan 2013 #10
Live and Learn Jan 2013 #21
randome Jan 2013 #38
redqueen Jan 2013 #40
randome Jan 2013 #42
redqueen Jan 2013 #44
randome Jan 2013 #47
customerserviceguy Jan 2013 #83
garthranzz Jan 2013 #91
4Q2u2 Jan 2013 #5
duffyduff Jan 2013 #6
Bradical79 Jan 2013 #9
ismnotwasm Jan 2013 #20
EOTE Jan 2013 #31
ismnotwasm Jan 2013 #45
EOTE Jan 2013 #46
galileoreloaded Jan 2013 #48
ismnotwasm Jan 2013 #49
EOTE Jan 2013 #52
ismnotwasm Jan 2013 #65
randome Jan 2013 #85
ismnotwasm Jan 2013 #93
randome Jan 2013 #95
ismnotwasm Jan 2013 #99
randome Jan 2013 #101
EOTE Jan 2013 #108
customerserviceguy Jan 2013 #84
Sekhmets Daughter Jan 2013 #53
Bradical79 Jan 2013 #8
redqueen Jan 2013 #41
randome Jan 2013 #43
Nye Bevan Jan 2013 #7
CE5 Jan 2013 #11
Orrex Jan 2013 #13
REP Jan 2013 #26
Orrex Jan 2013 #30
REP Jan 2013 #35
Aerows Jan 2013 #78
Orrex Jan 2013 #82
pnwmom Jan 2013 #90
Orrex Jan 2013 #97
pnwmom Jan 2013 #109
antigone382 Jan 2013 #92
Orrex Jan 2013 #98
antigone382 Jan 2013 #100
Orrex Jan 2013 #102
former9thward Jan 2013 #18
obamanut2012 Jan 2013 #88
Ter Jan 2013 #16
alas_babylon Jan 2013 #80
Baitball Blogger Jan 2013 #12
Zorra Jan 2013 #14
Behind the Aegis Jan 2013 #28
backscatter712 Jan 2013 #15
Warren DeMontague Jan 2013 #17
MADem Jan 2013 #27
Warren DeMontague Jan 2013 #50
Chathamization Jan 2013 #72
Rex Jan 2013 #106
Hugabear Jan 2013 #19
HiPointDem Jan 2013 #22
cali Jan 2013 #24
LineLineLineReply gee cali, & i thought we were friends now. but don't call me honey, honey.
HiPointDem Jan 2013 #25
Spider Jerusalem Jan 2013 #51
redqueen Jan 2013 #54
Spider Jerusalem Jan 2013 #55
redqueen Jan 2013 #56
Spider Jerusalem Jan 2013 #57
redqueen Jan 2013 #58
randome Jan 2013 #61
redqueen Jan 2013 #67
Spider Jerusalem Jan 2013 #63
redqueen Jan 2013 #70
Spider Jerusalem Jan 2013 #73
redqueen Jan 2013 #76
redqueen Jan 2013 #62
Spider Jerusalem Jan 2013 #69
redqueen Jan 2013 #74
Yo_Mama Jan 2013 #94
randome Jan 2013 #96
HiPointDem Jan 2013 #71
alcibiades_mystery Jan 2013 #66
HiPointDem Jan 2013 #77
Jamastiene Feb 2013 #110
napoleon_in_rags Jan 2013 #29
Recursion Jan 2013 #32
HiPointDem Jan 2013 #33
AngryAmish Jan 2013 #34
HiPointDem Jan 2013 #36
alcibiades_mystery Jan 2013 #68
Logical Jan 2013 #104
HiPointDem Jan 2013 #105
Rex Jan 2013 #107
davidpdx Jan 2013 #23
Zoeisright Jan 2013 #37
davidn3600 Jan 2013 #59
randome Jan 2013 #64
Behind the Aegis Jan 2013 #79
Jamastiene Feb 2013 #111
obamanut2012 Jan 2013 #89
MrSlayer Jan 2013 #60
ecstatic Jan 2013 #103
Please login to view edit histories.