Sentences with phrase «neural activity when»

Narins now plans to investigate the neural basis of the aggressive reaction by measuring neural activity when frogs are goaded by RoboRana.

Nobody really knows how the activity in your brain reorganizes as you learn new tasks, but new research from Carnegie Mellon University and the University of Pittsburgh reveals that the brain has various mechanisms and constraints by which it reorganizes its neural activity when learning over the course of a few hours.

For instance, suppose that experiment after experiment showed that brain wave patterns deviate most from patterns of neural activity when people are making what look like free choices.

Not exact matches

The straightforward experimental implication is that the correlation between brain wave patterns and neural impulse patterns should be lower when a person is engaged in creative thought than when engaged in routine activity like adding numbers.14

Together, they developed an optical imaging and temperature control system that enabled them to take a snapshot of neural activity in the circadian clock network of fruit flies when the flies are exposed to heat or cold stimulus.

«What's really exciting about this was that the activity differences were detected at a critical time in brain development: when neural progenitor cells are proliferating and expanding in number, just prior to producing neurons,» Silver said.

«When faced with a new task, we're finding that the brain is constrained to take the neural activity patterns that it's capable of generating right now and use them as effectively as possible in this new task.»

The collective neural activity therefore looks different when executing the same grip on one object versus another.

Neural activity is detected through the highly localised electric fields generated when neurons fire, so densely packed, ultra-small measuring devices is important for accurate brain readings.

Recent studies have found that patterns of neural activity seen when an animal is learning a new task are replayed later during sleep.

When patients like Godfrey Catanus in the study heard the voice of a family member calling their names out loud and reciting stories while they were in an MRI, their brains showed increased neural activity.

Compared to non-amusics, their neural activity was delayed and impaired in these specific areas when encoding musical notes.

When patients in the study heard the voice of a family member calling their names out loud and reciting stories while they were in an MRI, their brains showed increased neural activity.

However, this neural activity was dampened when the men were exposed to the tears.

fMRI is a medical imaging technique which, when applied to the brain allows us to non-invasively observe neural activity associated with specific human behaviour.

Although one might assume that it would be possible to simply combine neural activity from two arms acting independently, the study shows that cells act differently when they are coordinating the movements of two limbs than they do when separately instructing one limb or the other, he says.

The analysis allowed the researchers to identify and isolate the specific patterns of neural activity that play out in this part of the brain when someone speaks, effectively enabling them to decode the brain's signals.

«When we look at the neural processes that take place in the brain while processing the symbols, we see that around 400 milliseconds after the presentation of the to - be-counted symbol, there is an extreme reduction in brain activity, although it should normally be very high,» explains Schmidt.

Again, Nrf2 - related activity was observed only when astrocytes were present in cultures, but significantly, Nrf2 signaling increased in tandem with neuronal firing, suggesting that neurons calibrate Nrf2 activity in astrocytes to keep pace with neural activity.

«The gaze patterns show that users are reading the warnings, the neural activity shows that users are undergoing high workload and are highly engaged when warnings were displayed, and the task accuracy shows that users heed warnings a large majority of the time.»

In a series of experiments in mice, the researchers developed a computer program that connected the neural activity in the animals» brains to musical notes, so that when one group of neurons switched on, a corresponding musical note played.

Meanwhile, the decoder now also keeps track of the baseline levels of neural activity in the motor cortex during moments when participants have chosen to pause.

When the rats reached adolescence, the researchers measured their neural activity involved in energy balance and appetite regulation.

The fMRI scans showed significant neural activity that correlated to both craving and learning signals when participants smoked a nicotine cigarette and believed its nicotine content was genuine.

But when we measure activity, we find that different types of information lurk in each region of the neural territory.

This new sequence of activity coexisted with the electrical pattern that was spontaneously generated when the neural culture was initially linked.

To achieve realistic feelings of touch, neural engineers try to reproduce the natural patterns of nerve activity generated when we manipulate objects.

The resulting image reveals levels of neural activity in the moment immediately after she received the radioactive fluid, when she presumably was still immersed in contemplation.

The only difference in that case is that the neural activity is weaker and delayed in comparison to what happens when an observer consciously registers and can recall having seen a particular image.

When the electrodes were activated, though, the neural activity of both brain regions in the people with OCD became virtually identical to that in the controls.

These «delayed response tasks» suggest that working memory, at the level of brain cells, is the result of self - sustaining patterns of neural activity — a group of neurons starts firing when the initial information is presented and maintains that firing internally when the stimulus is no longer present until the animal acts on that information.

It works by detecting the changes in blood oxygenation and flow that occur in response to neural activity — when a brain area is more active it consumes more oxygen and to meet this increased demand blood flow increases to the active area.

Quantitative RT - PCR using RNAs extracted from brain, thorax and abdomen of workers revealed that statistically significant and prominent Acks induction was observed only in the brain when the bees were exposed to high temperature, and scarce Acks expression was detected in the thorax and abdomen under both room and high temperatures (Figure 5O), further supporting that Acks induction under a high temperature reflects neural activity and does not result from some «heat shock responses» that could occur independently of neural activity.

(A, B) Comparison of neural activity blood oxygen - level dependent (BOLD) in 13 subjects with autism and 13 unaffected controls, when they were watching a scientific TV program (vs. rest).

«This shows that measuring high frequency variability during this early critical window of postnatal development has value for identifying NEC risk at a time when symptoms are not evident and interventions to improve the parasympathetic nervous system activity can be given,» said researcher R. Alberto Travagli, professor of neural and behavioral sciences.

We found increased neural activity in the visual cortex, and decreased medial prefrontal activity, when participants made more fixations to the videos.

Few studies have examined the DMN in children, and none have tested whether the neural regions that comprise the DMN during a resting condition are the same regions that show reduced activity when children engage in cognitive tasks.

Interestingly, these neural - activity patterns appeared somewhat distinct from those that usually appear when brain - scan subjects complete tasks associated with emotions like empathy or thinking about other peopleâ $ ™ s points of view, which is consistent with the idea that gratitude is a unique emotion.

When soy lecithin supplements were given throughout perinatal development, they reduced activity in the cerebral cortex and «altered synaptic characteristics in a manner consistent with disturbances in neural function.»

Children who have experienced neglect in institutional settings exhibit diminished electrical neural activity, decreased brain metabolism, and differences in neural reactions when processing information, such as identifying others» facial expressions.

This means that when people repeatedly practice an activity or access a memory, their neural networks — groups of neurons that fire together, creating electrochemical pathways — shape themselves according to that activity or memory.

Epileptic seizures occur when there is too much neural activity happening in the brain.