Image by Smeerch via Flickr As far as science movies go, the new movie, “To Age or Not To Age” seems like a lot of fun. The interview with Dr. Leonard Guarente suggests that the sirtuin genes play a starring role in the film. Certainly, an NAD+ dependent histone deacetylase – makes for a sexy [...]
Posts Tagged ‘Brain’
Movie star SIRT1 makes for a great body but an old brain
Posted in CREB, SIRT1, tagged aging, Aubrey de Grey, Brain, Chromosome, Development, Epigenetics, Gene expression, histone acetylation, synaptic plasticity on July 20, 2010 | Leave a Comment »
On mindfulness: old yogis and latent biological adaptations
Posted in Mindfulness, tagged Brain, Cognition, Meditation, Psychology, Religion and Spirituality, Yoga on July 2, 2010 | Leave a Comment »
Image by whatsthatpicture via Flickr This post is part of an ongoing exploration of “mindfulness” biology and the neurobiology of reflecting inwardly on one’s mental life. I hope it helps support the self-discovery aim of the blog. In some ways, the 8 limbs of yoga described in the yoga sutras, seem a bit like a [...]
Don’t ask what the genes for Prader-Willi syndrome do, ask where
Posted in Uncategorized, tagged Brain, Conditions and Diseases, Development, Epigenetics, Frontal lobe, Gene expression, Genomic imprinting, Mutation, Prader-Willi syndrome, visual system, Williams Syndrome on April 8, 2010 | Leave a Comment »
Image by Si1very via Flickr In an earlier post on Williams Syndrome, we delved into the notion that sometimes a genetic variant can lead to enhanced function – such as certain social behaviors in the case of WS. A mechanism that is thought to underlie this phenomenon has to do with the way in which [...]
Sit quietly (with your genome) and discover yourself
Posted in default network, tagged Brain, Emotion, Functional magnetic resonance imaging, Mental health, Genetics, Research, Neural network, default network, default mode network, Meditation, Yoga, Heritability on March 28, 2010 | Leave a Comment »
Image via Wikipedia This past friday, I attended my first meditation session at my new yoga school. I love this school and hope – someday – to make it through the full Ashtanga series and other sequences the instructors do. In the meantime, I found myself sitting on my folded up blanket, letting my mind [...]
Photoperiod sensitive humans bloom much like spring flowers
Posted in Suprachiasmatic nucleus, tagged 23andMe, Add new tag, Brain, Depression, Mental health, Biology, DNA, Circadian rhythm, bipolardisorder, Seasonal affective disorder, Mood disorder, CLOCK on March 17, 2010 | Leave a Comment »
Image by noahg. via Flickr If you’ve started to notice the arrival of spring blossoms, you may have wondered, “how do the blossoms know when its spring?“ Well, it turns out that its not the temperature, but rather, that plants sense the length of the day-light cycle in order to synchronize their own life cycles [...]
rs2132683, rs713155 and white matter near the left posterior lateral ventricle emerge from 14 billion statistical tests (vGWAS)
Posted in Frontal cortex, Lateral ventricle, Temporal lobe, White matter, tagged 23andMe, Add new tag, Brain, Development, Frontal lobe, Neuroimaging, Genetics, White matter, Temporal lobe, brain structure, Genome-wide association study, GWAS, Statistical hypothesis testing, Statistics on March 12, 2010 | 1 Comment »
An historic find has occurred in the quest (gold-rush, if you will) to link genome variation with brain structure-function variation. This is the publication of the very first genome-wide (GWAS) analysis of individual voxels (voxels are akin to pixels in a photograph, but are rather 3D cubes of brain-image-space about 1mm on each side) of [...]
rs35753505 C-alleles make de l’Art Brut of the brain
Posted in Fusiform gyrus, Middle frontal gyrus, NRG1, middle occipital gyrus, tagged 23andMe, Add new tag, Art, Brain, Cognition, DNA, Frontal lobe, Functional magnetic resonance imaging, Fusiform gyrus, Memory, Mental disorder, Mental health, Outsider art, Painting on March 10, 2010 | Leave a Comment »
According to wikipedia, “Jean Philippe Arthur Dubuffet (July 31, 1901 – May 12, 1985) was one of the most famous French painters and sculptors of the second half of the 20th century.” “He coined the term Art Brut (meaning “raw art,” often times referred to as ‘outsider art’) for art produced by non-professionals working outside [...]
Genes in the brain are like genes in muscles
Posted in Basal Ganglia, Caudate nucleus, DAT, Dopamine, Putamen, Substantia nigra, Subthalamic nucleus, tagged ADHD, Attention-deficit hyperactivity disorder, Basal Ganglia, Brain, Cognition, Development, Frontal lobe, Gene expression, Genetic testing, Genetics, Health, inhibition, Mental disorder, Mental health, Neural network, Personalized medicine, Substantia nigra on March 5, 2010 | 1 Comment »
Image by theloushe via Flickr ** PODCAST accompanies this post** I have a little boy who loves to run and jump and scream and shout – a lot. And by this, I mean running – at full speed and smashing his head into my gut, jumping – off the couch onto my head, screaming – [...]
A look inside brains that carry (my) genetic risk for autism
Posted in CNTNAP2, Cerebellum, Frontal cortex, Frontal pole, Fusiform gyrus, Rostral fronto-occipital fasciculus, Thalamus, White matter, tagged 23andMe, Add new tag, autism, Autism spectrum, Brain, Development, Frontal lobe, Functional magnetic resonance imaging, Genetic testing, Genetics, Grey matter, Health, Mental disorder, Mental health, Neural development, Neurodevelopmental, synaptogenesis, White matter on March 5, 2010 | Leave a Comment »
Image via Wikipedia The A-to-T SNP rs7794745 in the CNTNAP2 gene was found to be associated with increased risk of autism (see Arking et al., 2008). Specifically, the TT genotype, found in about 15% of individuals, increases these folks’ risk by about 1.2-1.7-fold. Sure enough, when I checked my 23andMe profile, I found that I’m [...]
Genetic road signs for super-size coffee SUV drivers
Posted in ADORA2A, DRD2, Uncategorized, tagged 23andMe, Anxiety, Brain, Caffeine, Coffee, Cognition, Disorders, DNA, evolution, Genetic testing, Genetics, Mental disorder, Mental health, panic disorder, Personalized medicine, Psychoactive drug, Starbucks, Stress on March 4, 2010 | Leave a Comment »
If you’re a coffee drinker, you may have noticed the new super-sized portions available at Starbucks. On this note, it may be worth noting that caffeine is a potent psychoactive substance of which – too much – can turn your buzz into a full-blown panic disorder. The Diagnostic and Statistical Manual for psychiatry outlines a [...]
Coping with the shifting sands of development one grain at a time
Posted in SAPAP3, Striatum, tagged Add new tag, Adolescence, Brain, Chemical synapse, Development, Mental disorder, NMDA, NMDA receptor, Obsessive–compulsive disorder, Walter Dean Myers, Young Landlords on February 22, 2010 | Leave a Comment »
Image by mbrownstone via Flickr Walter Dean Myers, an author of The Young Landlords and many other classic coming of age novels once remarked, “The special place of the young adult novel should be in its ability to address the needs of the reader to understand his or her relationships with the world, with each [...]
rs4880 knows that when I’m breathing I’m dying
Posted in SOD2, tagged aging, Brain, Mental health, Mitochondrion, Neuron, Oxygen, Reactive oxygen species, Superoxide, Superoxide dismutase on February 19, 2010 | Leave a Comment »
Image by MAMJODH via Flickr Oxygen is the key to life. This is because it loves electrons. In the mitochondria of every cell in your body, oxygen (in is atmospheric O2 state) serves as the ultimate electron acceptor and provides the chemical energy that drives the formation of ATP (a form of chemical energy storage [...]
FMR1 points to mechanisms of tactile defensiveness in autism spectrum disorders
Posted in FMR1, Somatosensory cortex, Thalamus, tagged autism, Autism spectrum, Brain, Cognition, critical period, Development, Mental disorder, Mutation, pruning, Rett Syndrome, sensory overload, synaptic plasticity, synaptic pruning on February 13, 2010 | Leave a Comment »
Image by cobalt123 via Flickr If you have a minute, check out this “Autism Sensory Overload Simulation” video to get a feel for the perceptual difficulties experienced by people with autism spectrum disorders. A recent article, “Critical Period Plasticity Is Disrupted in the Barrel Cortex of Fmr1 Knockout Mice” [doi: 10.1016/j.neuron.2010.01.024] provides some clues to [...]
RARB says I was born when my late born striosomal cells were born
Posted in Basal Ganglia, RARB, Striatum, tagged Ann Graybiel, Basal Ganglia, Brain, Cognition, Development, Dopamine, Mental health, Neural network, Psychology, schizophrenia, self, self awareness, Striatum on February 5, 2010 | Leave a Comment »
Image via Wikipedia Everyone has a birthday right. Its the day you (your infant self) popped into the world and started breathing, right? But what about the day “you” were born – that is – “you” in the more philosophical, Jungian, spiritual, social, etc. kind of a way when you became aware of being in [...]
Semaphorins integrate the sweetness and development of our cortical 6-layer cake
Posted in RLN, SEMA(1-7), tagged Brain, cerebral cortex, Circuitry, Cognition, Development, economics, Frontal lobe, Gene expression, Mental disorder, Mental health, Messenger RNA, neural migration, Neuron, Prefrontal cortex, schizophrenia, Stem cell, University of Pittsburgh on January 26, 2010 | Leave a Comment »
Image via Wikipedia For a great many reasons, research on mental illness is focused on the frontal cortex. Its just a small part of the brain, and certainly, many things can go wrong in other places during brain/cognitive development, but, it remains a robust finding, that when the frontal cortex is not working well, individuals [...]
APOE and the silent brain speak loudly of our destiny
Posted in Cingulate cortex, Hippocampus, Temporal lobe, tagged Brain, Frontal lobe, Functional magnetic resonance imaging, Genetic testing, Health, Hippocampus, Alzheimer's disease, Poetry, Cognition, Temporal lobe, aging, default network, Japanese poetry, E. E. Cummings, Human brain, default mode network, dementia on January 22, 2010 | Leave a Comment »
e. e. cummings via last.fm ***PODCAST ACCOMPANIES THIS POST*** In his undergraduate writings while a student at Harvard in the early 1900′s E. E. Cummings quipped that, “Japanese poetry is different from Western poetry in the same way as silence is different from a voice”. Isabelle Alfandary explores this theme in Cummings’ poetry in her [...]
rs4680 helps me tonically ponder the Burger King menu and phasically choose the least healthy items
Posted in COMT, Cingulate cortex, Frontal cortex, Hippocampus, tagged Brain, economics, Frontal lobe, Functional magnetic resonance imaging, Gene expression, Mental disorder, Mental health, Neuron, Parkinson's disease, Gene, Cognition, Neural network on January 20, 2010 | Leave a Comment »
One of the complexities in beginning to understand how genetic variation relates to cognitive function and behavior is that – unfortunately – there is no gene for “personality”, “anxiety”, “memory” or any other type of “this” or “that” trait. Most genes are expressed rather broadly across the entire brain’s cortical layers and subcortical systems. So, [...]
C.H. Waddington provides conceptual framework for shifting influences of genes and environment in the development of mind
Posted in Uncategorized, tagged Add new tag, Brain, Cognition, cognitive development, Development, evolution, Genetics, Human behavior, Intelligence, Mutation, Population genetics, Psychology, Twin, University of Edinburgh on January 12, 2010 | Leave a Comment »
Just a pointer to onetime University of Edinburgh Professor C.H. Waddington’s 1972 Gifford Lecture on framing the genes vs. environment debate of human behavior. Although Waddington is famous for his work on population genetics and evolutionary change over time, several of his concepts are experiencing some resurgence in the neuroimaging and psychological development literatures these [...]
Thousands of genes together with thousands of resting-state nodes actually makes the genes-to-cognition problem LESS complex
Posted in Uncategorized, tagged Biology, Brain, Cognition, connectome, default network, Development, DNA, Dopamine, Frontal lobe, Functional magnetic resonance imaging, Genetics, Memory, Mental health, Prefrontal cortex, Psychology, resting state network on January 7, 2010 | Leave a Comment »
DON’T tell the grant funding agencies, but, in at least one way, the effort to relate genetic variation to individual differences in cognitive function is a totally intractable waste of money. Let’s say we ask a population of folks to perform a task – perhaps a word memory task – and then we use neuroimaging [...]
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