Endocast researchers need to study the range
of brain surface characteristics in a larger sample of living chimps and other apes to make more accurate comparisons, Falk says.
Not exact matches
Researchers compare this strange localized sleep to that
of dolphins, who are able to rest underwater while some part
of their
brain stays active enough to remind them to
surface for air every so often.
As we age, the
brain — like any other organ — begins to work less efficiently, so signs
of decline start to
surface.
As we age, the
brain — like any other organ — begins to work less efficiently, so normal signs
of decline begin to
surface.
When your
brain becomes so preoccupied with the stress and anticipation
of an impossible challenge, you can not think clearly or allow your ingenuity to
surface.
In Trebek's case, a clot formed on the
surface of the
brain.
The
brain neutralizes change by transferring it from the time within objects to the space between them, displacing the change that is ingredient in the object to a
surface interaction as another property
of space.
Like the human
brain, we've barely scratched the
surface of what life may be out there in our universe.
The cosmic tide may at one time have seemed to be immobilized, lost in the vast reservoir
of living forms; but through the ages the level
of consciousness was steadily rising behind the barrier, until finally, by means
of the human
brain (the most «centro - complex» organism yet achieved to our knowledge in the universe) there has occurred, at a first ending
of time, the breaking
of the dykes, followed by what is now in progress, the flooding
of Thought over the entire
surface of the biosphere.
Water covers three quarters
of the earth's
surface and all
of my
brain.
The years
of abuse in the boxing ring had left him
brain damaged, excess fluid oozing onto the
surface of his
brain.
Beware
of Mozart Information about the electrical wiring
of the human
brain surfaced in the late 1990's and led to a frenzy among anxious parents to do everything they could to «stimulate» their babies»
brains, sometimes even before they were born.
Up until the third trimester, the
surface of your baby - to - be's
brain was nearly smooth.
Groove patterns on the
surface of modern chimpanzee
brains throw a monkey wrench into proposals that some ancient southern African hominids evolved humanlike
brain characteristics, a new study suggests.
Still, researchers have spent decades debating the implications
of partially preserved
brain surface features on hominid endocasts.
Some
of these
brains showed
surface creases similar to ones that were thought to have signaled a turn toward humanlike
brain organization in ancient hominids hundreds
of thousands, if not millions,
of years ago.
MRIs
of eight living chimps reveal substantial variability in the shape and location
of certain features on the
brain surface.
Identification
of in vivo sulci on the external
surface of eight adult chimpanzee
brains: implications for interpreting early hominin endocasts.
Mushrooms that contain the
brain - altering compound psilocybin vary widely in terms
of their biological lineage and, on the
surface, don't appear to have a whole lot in common, he said.
Brain drain One set of images focused on gray matter at the brain's wrinkled surface, or cortex, where processing of speech, memory, motor control, emotion, sensory and other information oc
Brain drain One set
of images focused on gray matter at the
brain's wrinkled surface, or cortex, where processing of speech, memory, motor control, emotion, sensory and other information oc
brain's wrinkled
surface, or cortex, where processing
of speech, memory, motor control, emotion, sensory and other information occurs.
Inside the
brain, prions presumably latch onto PrPC molecules on the
surface of nerve cells and impose the prion conformation.
These «organoids» can develop as many as six layers
of cerebral cortex — the outer
surface of the
brain.
The device is an improved version
of a clinical tool called an electrode grid, which is a plastic or silicone - based grid
of electrodes that is placed directly on the
surface of the
brain during surgery to monitor the activity
of large groups
of neurons.
Further study revealed that these so - called immune proteins are actually present on the
surface of certain nerve cells, but that they functioned differently in the
brain than they did in the rest
of the body; rather than scouting for germs, they influenced signals sent between neurons.
This technique provides a measure
of blood oxygen concentration in
surface blood vessels, indicative
of activity in the
brain's outer layers, using a set
of wearable probes in a cap that is placed on the head.
A close analysis
of the
brain scans revealed vastly different neural circuitry behind problems that seem similar on the
surface.
He was listening to a young researcher expound on the virtues
of extracting signals from the
surface of the
brain.
In the case
of the soft,
brain - like
surface, the Wisconsin researchers believe that the mechanical properties
of a
surface are influencing a protein called YAP.
This allows it to conform better to the intricately curved
surface of the
brain and obtain better readings.
«Ready Eagle go to red now... Ready Tiger go to green now...» As Lappas concentrated, a computer recorded hundreds
of squiggly lines representing Lappas's
brain activity as it was picked up from the
surface of his scalp.
«Recording a thought's fleeting trip through the
brain: Electrodes on
brain surface provide best view yet
of prefrontal cortex coordinating response to stimuli.»
As SNX27 plays an important role in shuttling the AMPA - receptor to the
brain cell
surface, lower levels
of SNX27 means fewer receptors are carried to the
surface, which consequently interrupts the signal transmission and impairs memory.
The scientists observed that transmission
of chemical signals between the nerve cells are facilitated by AMPA - receptors and the activity occurs on the
brain cell
surface.
But unlike other
brain implants, which either sit on the scalp or have to be jabbed into
brain tissue, this one sits on the
surface of the
brain.
Recording the electrical activity
of neurons directly from the
surface of the
brain, the scientists found that for a simple task, such as repeating a word presented visually or aurally, the visual and auditory cortexes reacted first to perceive the word.
In 1816, an Italian anatomist reported finding lymphatic vessels on the
surface of the
brain, but for two centuries, it was forgotten.
Once these alarm signals reach the
surfaces of blood vessels lining the
brain, the microglia produce a neurotoxic molecule called interleukin - 1 beta.
Your
brain perceives the gradients where the tiles meet as curves, and you surmise that light hits the large, flat
surface of the top tile and fades to shadow at its curved bottom edge; for the bottom tile, the opposite holds.
If this line
of reasoning is correct, then there are physical processes taking place on some distant
surface that, much as a puppeteer pulls strings, are fully linked to the processes taking place in my fingers, arms, and
brain as I type these words at my desk.
Further studies
of casts
of the inner braincase, which show impressions from
surface features
of the
brain, may help clarify N. alesi's position in ape evolution, Nengo says.
The cortex
of the
brain reached a peak
surface area 2.4 years earlier than the original data would have suggested.
She demonstrated that extracellular matrix in the
brain decorates the
surface of neurons with astonishing molecular variety, and that early experience regulates its expression.
Previous research had shown that nicotine seems to have conflicting effects on different types
of nicotinic acetylcholine receptors, proteins on the
surface of brain cells that respond to nicotine and the naturally occurring neurotransmitter acetylcholine.
The neural probes are placed directly on the
surface of the
brain, so safety is
of paramount importance for the development
of graphene - based neural implant devices.
It is an extraordinarily evolved part
of the
brain that is related to connections between neurons underneath the
surface of the
brain.
To pinpoint where dNPF was acting in the
brain, the researchers turned to dNPF receptors, or the proteins on the
surface of neurons to which the peptide specifically binds.
Indeed, by examining
brain tissue and slices from the cocaine - addicted rats at various stages
of withdrawal and craving, Wolf and her colleagues discovered that the incubation period and the subsequent spike in craving appeared to correlate with the appearance
of atypical AMPA receptors on the
surface of neurons in the NAc, which could help explain cocaine craving.
Stolk plans future studies with Knight using fine - tuned
brain mapping on the actual
surfaces of the
brains of volunteers, so - called electrocorticography.
In a bid to determine the regions
of the
brain concerned with these memorization difficulties, the researchers conducted magneto - encephalographs (a technique that allows very weak magnetic fields produced by neural activity to be measured at the
surface of the head) on a group
of amusics while they were performing a musical task.
Specifically, the study relied on data collected at NYU ECoG, a center where
brain activity is recorded directly from patients implanted with specialized electrodes placed directly inside and on the
surface of the
brain while the patients are performing sensory and cognitive tasks.