Sal - Ağustos 1, 2006
Magic mushrooms really cause 'spiritual' experiences
It is now generally illegal to sell or possess
psilocybin drugs in the US. Demonised compound But Roland Griffiths, of Johns
Hopkins University School of Medicine in Baltimore, Maryland, US, and his
colleagues believe there is a need to revisit the biological effects of
psilocybin, which have been virtually ignored by the scientific community for
about 40 years.
Posted at 10:23 AM Read More
Paz - Aralık 11, 2005
The robot that thinks like you...
For its first baby steps after each reboot,
SAIL's visual cortex is completely undeveloped, but within a few days the
simulated neurons have self-organised into a menagerie of clusters, each with a
specialised task such as identifying simple visual features like
edges.
Enlarge image
Enlarge image
Posted at 07:24 PM Read More
Cmt - Aralık 10, 2005
All in the mind
The kind of patient most likely to experience the
nocebo effect of a given drug has a history of vague, difficult-to-diagnose
complaints and is sure that whatever therapy is prescribed will do little to
battle the problem.
Posted at 07:48 PM Read More
Coffee's effects revealed in brain scans
“Caffeine modulates a higher brain function
through its effects on distinct areas of the brain,” explains Florian
Koppelstätter, who carried out the research with colleagues at the Medical
University at Innsbruck, Austria.
Posted at 12:00 PM Read More
Pzt - Kasım 21, 2005
Just a nip
Catnip and other members of the mint family
produce whole bouquets of chemicals, mainly to ward off infections and enemies,
generally without interesting cats.
Posted at 10:45 PM Read More
Cmt - Kasım 19, 2005
Ease pain by taking a good look at yourself
They were asked to move their two arms in
different directions while watching their reflection – creating a mismatch
between the actual motion of the hidden arm and the apparent motion viewed in
the mirror.
Posted at 09:35 PM Read More
Paz - Ekim 30, 2005
Eating fish keeps older people brainy
“I had grown up being told to eat more fish
because it was brain food,” says Martha Clare Morris, an epidemiologist at
Rush University Medical Center in Chicago, who led the study.
Posted at 08:42 PM Read More
'Slumber gene' brings deep sleep
Jason Ellis, also at the Surrey Sleep Research
Centre, says that there might be a link between deep sleep and the immune
system, because other common defects in the ADA gene cause the immune system to
malfunction.
Posted at 08:25 PM Read More
Sal - Ağustos 30, 2005
The perils of kids on speed
When William Carlezon of Harvard University and
his colleagues exposed young rats to therapeutic doses of Ritalin and observed
them as they grew, they found that the mature rats found cocaine unrewarding,
were less interested in sex and less likely to prefer sweetened water to plain
water.
Enlarge image
Enlarge image
Posted at 11:30 PM Read More
Cocaine use prevents adaptive behaviour
A team looked at the connections between two
regions of the brain: one involved with learning, memory and processing
information - the prefrontal cortex and hippocampus - and one involved with
pleasure seeking, emotion and reward behaviour - the nucleus accumbens in the
limbic system.
Posted at 11:00 PM Read More
Paz - Ağustos 14, 2005
Erotic images can turn you blind
David Zald, from Vanderbilt University in
Nashville, Tennessee, and Marvin Chun and colleagues from Yale University in
Connecticut, showed hundreds of images to volunteers and asked them to pick a
specific image from the rapid sequence.
Posted at 10:01 AM Read More
Cmt - Haziran 18, 2005
Autistic and proud of it
Autism, or more accurately the autism spectrum
disorders (ASD), encompass a group of three developmental problems - autistic
disorder, Asperger's syndrome (or high functioning autism) and pervasive
developmental disorder not otherwise specified (PDD-NOS), sometimes called
"mild" or "atypical" autism.
...But Roberts and Nelson say that coaching children to repress their natural behaviour in favour of mainstream activities such as making eye contact, hugging and socialising is the wrong approach and can cause low self-esteem and depression.
..."We deconstruct why [NT] people make eye contact, for example, and show how these behaviours will be useful for students who want to live independently and get a job in the NT world where they are a minority."
...But Roberts and Nelson say that coaching children to repress their natural behaviour in favour of mainstream activities such as making eye contact, hugging and socialising is the wrong approach and can cause low self-esteem and depression.
..."We deconstruct why [NT] people make eye contact, for example, and show how these behaviours will be useful for students who want to live independently and get a job in the NT world where they are a minority."
Posted at 11:55 PM Read More
Per - Haziran 9, 2005
Feeling pain and witnessing it have same effect on muscles
Volunteers were shown videos of a needle being
inserted into someone's hand or foot while electrodes on their skin measured the
activity of muscles in their own hands and feet to see if they behaved in the
same way as someone actually feeling pain in those places.
Posted at 11:05 PM Read More
Per - Mayıs 26, 2005
Cannabis may help keep arteries clear
He stresses that the findings do not prove that
smoking cannabis will prevent atherosclerosis, pointing out that the mouse study
suggests the effect is dose-dependent and too little or too much THC has no
protective effect.
Posted at 08:31 PM Read More
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Published On: Ağu 13, 2006 07:14 PM
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Published On: Ağu 13, 2006 07:14 PM