Not exact matches
There are neurological correlates for every form of mental activity and, as Biovin himself acknowledges, just because
imaging studies show that religious experiences are correlated with activity in a particular part of the
brain, it does
not follow that that activity is the cause of religious experience.
Associated injuries, such as bleeding,
brain swelling or skull fractures, are
not part of the definition of a concussion and, therefore, require advanced
imaging.
In addition, because it tests for verbal memory, the SAC can
not identify athletes who may suffer measurable impairment of neurocognitive function (primarily visual working memory) on neurocognitive tests, as well as altered activation in neurophysiologic function on sophisticated
brain imaging tests (fMRI), resulting from repeated sub-concussive blows to the head.
Regardless of whether or
not your baby is
imaging a relaxing breastfeeding session, a nap on dad's chest, or is simply filing away the sights and sounds of the day, REM sleep is helping your baby's
brain development.
Extensive
brain imaging showed how negative attitudes develop in the
brain's unconscious neural mechanisms, but that negative attitudes are
not fixed.
But because I was a volunteer in a
brain -
imaging trial with people I didn't know, my experience transitioned from dream to nightmare.
Levels of emotional reaction do
not affirmatively identify false memories, nor do
brain imaging techniques, Loftus noted.
Brain imaging shows that food activates an anorectic's brain center associated with anxiety, not with pleasure as in nonanorec
Brain imaging shows that food activates an anorectic's
brain center associated with anxiety, not with pleasure as in nonanorec
brain center associated with anxiety,
not with pleasure as in nonanorectics.
Evidence that animal pheromones don't always work in they way we thought, backed up by a growing number of
brain -
imaging studies in humans, is convincing some researchers that we really do make and respond to pheromones.
Furthermore,
brain imaging data for these very elderly animals shows a slight loss of grey matter (neuronal cell bodies), an effect that the researchers have
not yet explained, as well as significantly slowed atrophy of white matter (the neuronal fibers connecting different areas of the
brain).
And even if the patient doesn't meet the conditions that guidelines say can benefit most from
brain imaging — for instance, someone with an abnormal neurological exam or a known cancer — doctors might order a scan at a patient's request to protect themselves legally.
For his own recent
brain imaging work, Monk has teamed up with a large existing project to get a larger sample, but even then, he says, «it's still questionable whether or
not the sample can be made representative.»
But in conversations with her colleagues in psychiatry about
brain imaging, LeWinn realized they weren't thinking very much about whose
brains they were looking at.
The result is that a large number of people whose
brains appear normal on standard tests (X-ray, computed tomography, or magnetic resonance
imaging) could actually have some form of injury whose course is
not well understood.
To find out what happens in the
brain, fifteen people who like cheese and fifteen who do
not were selected and participated in a functional magnetic resonance
imaging (fMRI) study.
Imaging studies that combine scans from many people, such as this diffusion image from the Human Connectome Project, don't identify
brain variations in individuals.
But careful analysis of the volunteers» eye movements, combined with measurements of
brain activity using functional magnetic resonance
imaging, revealed that the hippocampus was often retrieving memories even if these recollections didn't make it to the level of consciousness.
These comprised
not only «conventional» behavioral studies, but also the physical effects on the
brains of test participants by measuring the Blood Oxygen Level - dependent (BOLD) response using functional Magnetic Resonance
Imaging (fMRI) scans.
A new
brain imaging study by Josh Greene and Joe Paxton at Harvard University published in the Proceedings of the National Academy of Sciences suggests that what separates the well - behaved from the poorly - behaved might
not be the ability to control your temptations but rather what kind of temptations you have.
The assessments, from exercise stress tests to
brain magnetic resonance
imaging tests, will probe the biological and clinical characteristics of the disease — for which there is
not even a broadly agreed - upon definition.
Also, the patterns of
brain activity that we see on
imaging when they are lying down may
not be the patterns that the
brain produces during normal upright activity.»
«But when I looked at experimental work done on tinnitus and emotional processing, especially
brain imaging work, there hadn't been much research published.»
White matter
imaging isn't yet used routinely before surgery, but Thompson says in future it could prove useful in avoiding collateral damage to
brain connections.
«We have all this stuff - new
brain imaging technologies, big data samples, etc. — why are we
not making really fast progress?»
The National Institutes of Health (NIH) in Bethesda, Maryland, has confirmed that the agency's definition of clinical trials now includes
imaging studies of normal
brain function that do
not test new treatments.
When participants were shown pictures of highly desirable foods, fMRI
imaging revealed increased activity in a part of the
brain called the right insula after participants had consumed the five - day walnut - rich diet compared to when they had
not.
The microscopy techniques that permit
imaging of
brain cells in awake mice generally can't visualize anything deeper than a fraction of a millimeter below the
brain's surface, whereas the mPOA is several millimeters deep.
According to Chataway, «Caution should be taken regarding over-interpretation of our
brain imaging findings, because these might
not necessarily translate into clinical benefit.
Raichle, a pioneer in the use of
brain imaging, and his colleagues have observed that in
brains at «rest» — when you are
not thinking of anything in particular or even when you are asleep — dispersed areas are still buzzing with communication.
It doesn't hurt that Michael Phelps at UCLA is coinventor of PET
imaging and was a pioneer in realizing that what had been an abstruse mathematical tool — the Radon transform — allows three - dimensional reconstruction of a living
brain.
I am proposing a demanding criterion: that you be able to detect abnormalities in patients beforehand by such
brain -
imaging techniques as functional MRI [which measures blood flow in the
brain], and then use
imaging to see whether or
not there is a change in those markers for the disease as the therapy progresses.
What our study group is discussing is whether or
not the time is ripe to use
brain imaging to evaluate the outcome of psychotherapy.
Using
imaging techniques, the researchers were even able to detect neural activity (see video, above), although this doesn't mean the
brain is conscious in anyway.
The feat means that functional magnetic resonance
imaging (fMRI), a workhorse of neuroscience, can now be used to observe the flow of
brain chemicals,
not just oxygen - rich blood.
For example, last year one of our «Young Investigators» reported that his project, the development of a new method to visualise fibre tracts in the
brain using functional
imaging techniques, was
not only successful but he recently secured ongoing funding for it from the National Institutes of Health (NIH).
And it is
not restricted to
imaging the
brain; Studholme also plans to study the placenta and how its development influences the
brain.
Some
brain imaging studies have shown activation of speech areas during mathematical tasks, while others have
not.
One strength of the study is the combination of this decision - making test with the
brain imaging data, says Peter J. Havel, a professor of nutrition at the University of California, Davis, who was
not involved with the study.
Just, who runs the Center for Cognitive
Brain Imaging at Carnegie Mellon, isn't worried about that part.
Now a similar experiment has been done with noninvasive
brain imaging, and for those of us who love to climb the results are
not elevating.
But these
imaging data are represented in completely different formats, and there's no way to switch between the two: once scientists zoom in to the level of single cells, they can
not pan out again to see those cells in the context of the whole
brain.
Functional magnetic resonance
imaging has shown that mothers, but
not fathers, have increased
brain cortical activation in specific language processing areas when listening to infant - directed speech, suggesting that mothers have an intent to communicate and the difference in neural processing is experience - dependent.24 The mothers spoke more to infant girls than boys in early infancy.
Dr Stephen Mayhew from Birmingham University
Imaging Centre said «We do
not know what the exact role of the post-stimulus activity is or why this response is
not always consistent when the stimulus input to the
brain is the same.
The use of functional magnetic resonance
imaging (fMRI) and electroencephalography (EEG) may be able to identify ICU patients with severe traumatic
brain injuries who have a level of consciousness
not revealed by the standard bedside neurological examination.
Calcium
imaging also showed that the neurons in the organoid were
not firing sparsely, with isolated activity, as in cultured
brain organoids, but in synchronized patterns, suggesting an active neuronal network was developing.
The
brain imaging center is a critical component of the overarching Chen Institute for Neuroscience at Caltech, providing facilities to faculty across
not only humanities and social sciences but also biology and biological engineering as well as chemistry and chemical engineering.
«Because
brain -
imaging techniques and methods are developing at great speed, the legal system can't afford to get too far behind this learning curve,» he says.
Fetal neurosonography and magnetic resonance
imaging (MRI) have also showed diffuse calcification in the subcortical parenchyma and thalamic areas, ventriculomegaly, lissencephaly, and pachygyria (ie, smooth
brains with reduced gyral ridges).6 Nevertheless, to our knowledge, a systematic follow - up of clinical and morphological features of these cases along with anatomic and pathological descriptions associated with congenital ZIKV infection has
not been reported.
An
imaging method used to find anything
not normal in the
brain, including
brain cancer and cancer that has spread to the
brain from other places in the body.
1)
Brain imaging research techniques such as PET scans (positron emission tomography) and fMRI (functional magnetic resonance imaging) clearly show that the vast majority of the brain does not lie fa
Brain imaging research techniques such as PET scans (positron emission tomography) and fMRI (functional magnetic resonance
imaging) clearly show that the vast majority of the
brain does not lie fa
brain does
not lie fallow.