Sentences with phrase «of neural changes»

For example, one set of neural changes may cause flies to jump.

Not exact matches

What's changed is that today computer scientists have finally harnessed both the vast computational power and the enormous storehouses of data — images, video, audio, and text files strewn across the Internet — that, it turns out, are essential to making neural nets work well.

These changes would be revenue neutral, although not neural in terms of their affect on economic growth.

A clump of cells with no brain, and no neural tube is no more «a human life» than cells from your skin layer, or a sperm cell with no change of fertilizing an egg.

In the higher organisms, including man, a complex set of neural and humoral regulatory mechanisms preserve the stability of the metabolic processes within very narrow limits, despite substantial changes in the external environment.

He cites research on the plasticity of the brain's neural pathways which demonstrates that the brain has the ability to change depending on the type of stimulation it receives.

Also there is evidence of molecular mechanisms in the cell membranes that can amplify small changes in the field to produce large changes in neural activity.13 On the other hand, earlier tests of Kohler's theory found that interference with electrical gradients over the cortex had no effect on behavioral measures (see note 11 for reference to these studies).

Each synaptic event and each neural impulse cause a change in the distributions of electrically charged atoms in the adjacent interstitial fluid.

It alters the neural pathways of the brain and literally changes the way its consumers think.

In a similar vein Mr. Percival Lowell writes: «When we have, as we say, an idea, what happens inside of us is probably something like this: the neural current of molecular change passes up the nerves, and through the ganglia reaches at last the cortical cells....

When all the parts of the neural system don't develop at the correct rate, a teen may experience changes in thinking, mood, and behavior.

We are now beginning to understand some facets of human emotionality, decision - making, morality, trauma and the drive for political power down to the cellular level, by observing changes in neurochemistry, neural pathways, and neuro - anatomical transformations in the brain.

The latter study shows that the process of forming and changing opinions is intimately connected to the brain's neural hardware, where different parts of the brain are involved differently in shaping opinions, and the more beliefs are tied to community values, the more difficult it is to change them.

Other research indicates that teenage marijuana use may adversely impact the developing brain: it has been linked to changes in neural structure and function, including lower IQ, as well as an increased risk of psychosis in vulnerable individuals.

Using resting - state MRI analysis on thousands of people's brains around the world, the research has found that the areas of the brain which are associated with learning and development show high levels of variability, meaning that they change their neural connections with other parts of the brain more frequently, over a matter of minutes or seconds.

«Our results showed that the changes of spectral power in neural sources localized to the posterior parietal cortex and sensorimotor cortex are associated with the level of motor task demands,» they wrote.

«It's useful in modeling concepts in neuroscience to have a system that will yield a diverse range of behaviors for small changes of a control parameter, as this may help offer some insights about how the same neural tissue displays different responses,» Alonso said, whose research was funded by a fellowship from the Leon Levy Foundation.

The results are largely consistent with a growing body of research about the neural basis of aggression, and how it is triggered by changes in the way that the prefrontal cortex, the limbic system and reward - related regions of the brain function.

«The results are novel, as this sensitive and comprehensive testing has revealed how prenatal and early postnatal immune activation may regulate core behavioral signs associated with ASD and certain other developmental disorders through changes in signal flow between different structural components of behavior - driving neural circuits,» said Bolshakov.

The overlap in gene expression changes when neural progenitor cells are infected by African or Asian strains of Zika virus.

The experience of winning drives neural changes that increase aggression and desire, say the authors.

The turmoil of the teenage years also can drive hormonal changes that permanently alter neural pathways for emotional regulation.

Using human fetal «mini-brains» grown in 3 - D cultures, scientists determined that a specific protein produced by the Zika virus changes the properties of neural stem cells in the developing brain of an infected fetus, potentially causing microcephaly in newborns (Ki - Jun Yoon, abstract 103.06, see attached summary).

In drug addiction — my field — rodents will self - administer and addict themselves to the same drugs that humans self - administer and addict themselves to, which makes it possible to identify the neural circuits in the brain, and the molecular changes within those circuits caused by drug exposure, that underlie states of addiction.

To truly see how neural activity changes during learning, we need to look bigger — at populations of neurons, rather than one neuron at a time, which has been the standard approach to date.

The researchers discovered that two members of a class of ion channels that can sense a change in temperature were present in neural crest cells from chickens and mice.

At Princeton, neurobiologist Lisa Boulanger — one of Shatz's former postdocs, who now has her own lab — began investigating whether changes in MHCI levels could cause neural signaling problems mimicking autism in mice.

«This connection between an innate call and the activity of a brain area important to learned vocalisations suggests that during the evolution of songbirds, the role of the song area in the brain changed from being a simple vocalisation system for innate calls to a specialised neural network for learned songs,» concludes Manfred Gahr, coordinator of the study.

«We believe that these tutor song selective neurons represent the memory of the tutor song and that learning the tutor song during the critical period changes the neural circuits to accommodate this memory.»

Also changed were genes involved in the function of neural crest cells.

He was paralyzed, but the moment he thought about using his hand, we saw changes in neural activity in the specific part of the motor cortex associated with hand movement.

One central developmental change — in a temporary clump of cells called the neural crest — may be behind the suite of characteristics known as domestication syndrome.

Geoff Hinton, a leading neural networking theorist, argues the hardware is useless without the proper «learning algorithm» spelling out which factors change the strength of the synaptic connections and by how much.

Scientists have long known that the functional neural architecture for perception and cognition strongly depends upon plasticity: in other words, our brain has the capacity to change and adapt as a result of experience.

After analysis, the researchers were able to observe how the patterns of neural activity were changing at each stage of each task.

Unlike the peak - shift principle, no obvious parameter is being exaggerated (such as a long neck); the changes in appearance are selected because of idiosyncratic aspects of neural wiring.

Some scientists might explore how and why the neural circuits that detect threats and store fearful memories sometimes behave in unusual ways after traumatic events — the kinds of changes that are partially responsible for post-traumatic stress disorder.

«Now that we have isolated the neural underpinnings of a certain feature, we can try to manipulate and change the interactions between cells.

They used a somewhat bizarre technique in which two mice were sutured together in such as way that they shared a circulatory system (known as parabiosis), and found old mice joined to their youthful counterparts showed changes in gene activity in a brain region called the hippocampus as well as increased neural connections and enhanced «synaptic plasticity» — a mechanism believed to underlie learning and memory in which the strength of neural connections change in response to experience.

«Our findings are not a reflection of general brain aging but rather of specific neural changes that are linked to specific problems in object but not spatial memory.»

Adult stem cells: They have less flexibility and «stemness» to change into different cell types, but they can still produce new cells, specialized to become part of a particular organ or tissue, such as muscle cells or neural cells.

Neural signals are transmitted within neurons by changing calcium concentrations, so the researchers used this technique to measure the amount of calcium contained within the Purkinje cells in real time.

The artificial neural networks serve as «mini-brains that can be studied, changed, evaluated, compared against responses given by human neural networks, so the cognitive neuroscientists have some sort of sketch of how a real brain may function.»

At the same time, animal studies exploring the biochemistry of the postpartum brain are uncovering changes in neural circuitry and areas in need of repair.

«As the story goes with exercise - induced changes in strength, neural adaptations are contributing first with muscle growth playing a more prominent role in the latter portion of a training program: however, there is little direct evidence that this is actually true in an adult partaking in a resistance training program,» said Dr. Jeremy Loenneke, senior author of the Muscle & Nerve article.

«The finding is exciting,» says Bottjer, «because it provides a rare example of changes in neural activity that correspond with behavioral attempts to achieve a mental goal; in this case, to produce vocalizations that mimic the memory of a sound.

Because of the changes in neural signals over time, the resting firing patterns of neurons in the motor cortex might have changed since the last pause.

The critical role these changes play in brain development highlights the importance and urgency in understanding neural circuits in more detail and suggests new avenues for investigating the underlying causes of developmental disorders such as autism.

This is the first report of two different ASD - associated variations producing the same neural and behavioral changes in a Drosophila (fruit fly) model, said Aurelio Galli, Ph.D., professor of Molecular Physiology and Biophysics and of Psychiatry, and corresponding author with Kevin Erreger, Ph.D., and Heinrich J.G. Matthies, Ph.D..

Researchers at the University at Buffalo have discovered a previously unknown neural pathway that can regulate changes made in the brain due to cocaine use, providing new insight into the molecular basis of cocaine addiction.