Sentences with phrase «number of neurons on»

Even though the original source of the seizure is usually only a small number of neurons on one side of the cerebral cortex, the discharge of these neurons causes other neurons to discharge also, eventually causing the seizure to be generalized.

Quantification of relative amounts of neurons expressing ZENK was done by estimating the total number of neurons on Nissl - stained sections in defined areas of Cluster N.

Not exact matches

Effects of neonatal handling on social memory, social interaction, and number of oxytocin and vasopressin neurons in rats.

Mishra's team focused on a neurotransmitter called brain natriuretic peptide (BNP), which is expressed in a small number of sensory nerve cells or neurons.

The study results were published online in a paper titled «Birds have primate - like numbers of neurons in the forebrain» in the Proceedings of the National Academy of Sciences early edition on the week of June 13.

Studies on monkeys reveal that certain neurons in a specific fold of the parietal lobe fire more vigorously in response to increasingly higher numbers.

In this sense, Damasio's career mirrors the evolution of the brain sciences, which no longer focus exclusively on the microscopic tanglings of neurons and have made steady inroads into a number of fields like economics, sociology, literary theory, and political science.

That three - or - so - pound lump of soft tissue, housed within the cranium, has about 100 billion nerve cells or neurons (roughly equal to the number of stars in our galaxy), which form trillions of connections with each other, giving rise to millions of operations going on simultaneously.

1 billion Number of neurons, linked by 10 trillion synapses, in a brain simulation developed by IBM and Lawrence Berkeley National Lab, running on the Dawn supercomputer.

A new study has determined that mice that spent time running on wheels not only developed twice the normal number of new neurons, but also showed an increased ability to distinguish new objects from familiar objects.

The number of neurons in each human brain is on the order of billions, and the synaptic contacts that the neurons make among themselves number in the trillions.

The results indicate that the highest number of new hippocampal neurons was observed in rats that ran long distances and that also had a genetic predisposition to benefit from aerobic exercise: Compared to sedentary animals, HRT rats that ran voluntarily on a running wheel had 2 - 3 times more new hippocampal neurons at the end of the experiment.

«I believe the absolute number of neurons an animal has, especially in the cerebral cortex, determines the richness of their internal mental state and their ability to predict what is about to happen in their environment based on past experience,» Herculano - Houzel explained.

The analysis also discovered that the raccoon was an outlier — on the brainy side: It packs the same number of cortical neurons as a dog into a brain the size of a cat's.

Each odor - detecting neuron (referred to as olfactory sensory neuron from here on), chooses a single odorant receptor gene from a fairly large number of options that are split into class I (fish - like) and class II (terrestrial - specific) odorant receptors.

In their search for sleep - regulating cells, Wu's team used genetic engineering to turn on small numbers of neurons in more than 500 fruit fly strains.

The researchers are now working on scaling up the number of electrodes so they can record from multiple neurons at a time, potentially allowing them to determine how different parts of the brain are connected.

Estimating the number of neurons in the brain seems fairly simple on the surface.

Slides were imaged on an upright microscope (Nikon), and two images per brain region, per mouse were analyzed for density of GFAP or CD68 immunostaining or for the number of doublecortin - positive neurons.

We focused on this pathway as a number of TGF - β superfamily members are potent neurotrophic factors for mDA neurons that promote neurite growth and arborization [26,27].

In a study involving dietary ketosis via a low carbohydrate diet (less than 10 percent of total calories), compared to subjects on a 50 percent carbohydrate diet, the low - carbohydrate subjects demonstrated better performance on memory tests, with higher scores being correlated to higher serum KB levels.14 A study using cultured mouse hippocampal cells showed that addition of the KB β - hydroxybutyrate (β - OHB) to cells exposed to Aβ resulted in no decrease in the numbers of dendrites or total neurons — two of the noted pathological changes in AD.