Sentences with phrase «of cell in the hippocampus»

Using a miniature microscope inserted into the brains of the mice, Hen's team recorded the activity of hundreds of cells in the hippocampus as the mice freely moved around their surroundings.

«We were able to demonstrate for the first time that these specific cells — a small group of cells in the hippocampus — had undergone this augmentation of synaptic strength,» Tonegawa says.

O'KEEFE: I'd have to say there was quite a bit of skepticism on several grounds when we first started reporting that we could show very specific correlates to the activity of cells in the hippocampus, and specifically, that they were related to where the animal was in the environment.

Using a miniature microscope inserted into the brains of the mice, the researchers recorded the activity of hundreds of cells in the hippocampus as the mice freely moved around their surroundings.

Chronic stress, and the depression that often follows it, have been found to decrease the functioning and number of cells in the hippocampus, an area of the limbic system, the emotional brain, involved in memory.

Not exact matches

Specifically, it appears that exercise stimulates neurons (nerve cells) to grow in the hippocampus, the part of the brain responsible for memory.

«In animal studies, exercise has been shown to specifically affect the hippocampus, significantly increasing the growth of new neurons and cell survival, enhancing memory and learning, and increasing molecules that are involved in the plasticity of the brain,» Chaddock saiIn animal studies, exercise has been shown to specifically affect the hippocampus, significantly increasing the growth of new neurons and cell survival, enhancing memory and learning, and increasing molecules that are involved in the plasticity of the brain,» Chaddock saiin the plasticity of the brain,» Chaddock said.

Neural stem cells with the ability to form new neurons in the brain are normally present in the hippocampus (the part of the brain connected to learning and memory) and in the subventricular zone of the brain.

In 2011 researchers found that these waves of electricity cause neurons in the hippocampus, the main brain area involved with memory, to fire backward during sleep, sending an electrical signal from their axons to their own dendrites rather than to other cellIn 2011 researchers found that these waves of electricity cause neurons in the hippocampus, the main brain area involved with memory, to fire backward during sleep, sending an electrical signal from their axons to their own dendrites rather than to other cellin the hippocampus, the main brain area involved with memory, to fire backward during sleep, sending an electrical signal from their axons to their own dendrites rather than to other cells.

Boldrini surmised that reduced cognitive - emotional resilience in old age may be caused by this smaller pool of neural stem cells, the decline in vascularization, and reduced cell - to - cell connectivity within the hippocampus.

Biologist Ann Cornell - Bell of Viatech Imaging in Ivoryton, Connecticut, put on display star - shaped cells, called astrocytes, from the rat hippocampus, a brain region associated with long - term memory.

They discovered that the chemicals and radiation used to kill tumor cells damage the stem cell reservoir in the hippocampus and nearly halt the formation of new neurons in both children and adults.

Specifically, they drew RNA from the hippocampus, which is the part of the brain that helps regulate learning and memory, and from leukocytes, white blood cells that play a key role in the immune system.

Samuel Weiss, director of the Hotchkiss Brain Institute at the University of Calgary, and his colleagues reported that nerve cells sprouted in the olfactory bulb, the seat of the sense of smell, and in the hippocampus, the brain's memory bank.

The sex - specific differences — the smaller hippocampus, the presence of fewer nerve cells, the existence of immune system macrophages in places they shouldn't be — were also found in adulthood.

In the brains of the diseased mice, however, nearly all the cells congregated in the hippocampIn the brains of the diseased mice, however, nearly all the cells congregated in the hippocampin the hippocampi.

NEW ROLE A kind of brain cell called an astrocyte (shown) may help nerve cells in the hippocampus form traumatic memories, a study in rats suggests.

In contrast to earlier prominent studies, Shawn Sorrells of the University of California, San Francisco and his colleagues failed to find newborn nerve cells in the memory - related hippocampi of adult brainIn contrast to earlier prominent studies, Shawn Sorrells of the University of California, San Francisco and his colleagues failed to find newborn nerve cells in the memory - related hippocampi of adult brainin the memory - related hippocampi of adult brains.

There is nothing extraneous here in this painting of two pyramidal cells, a type of neuron found in the cerebellum and hippocampus.

DWINDLING DOWN Young nerve cells (green) were spotted in the memory - related hippocampus of a newborn (left), but rarely in a sample from a 13 - year - old (center).

In May researchers at McGill University reported that the gene responsible for creating cells» protein - building machinery is more frequently methylated in the hippocampus — the brain region responsible for short - term memory and spatial navigation — of depressed suicide victims who suffered child abuse than in the brains of nonsuicide victims who were not abuseIn May researchers at McGill University reported that the gene responsible for creating cells» protein - building machinery is more frequently methylated in the hippocampus — the brain region responsible for short - term memory and spatial navigation — of depressed suicide victims who suffered child abuse than in the brains of nonsuicide victims who were not abusein the hippocampus — the brain region responsible for short - term memory and spatial navigation — of depressed suicide victims who suffered child abuse than in the brains of nonsuicide victims who were not abusein the brains of nonsuicide victims who were not abused.

In a second study, (abstract 3.312) researchers from the Federal University of São Paulo show that reduced cell density in certain parts of the hippocampus may be linked to deficits in short - and long - term memory in certain patients with TLE - HIn a second study, (abstract 3.312) researchers from the Federal University of São Paulo show that reduced cell density in certain parts of the hippocampus may be linked to deficits in short - and long - term memory in certain patients with TLE - Hin certain parts of the hippocampus may be linked to deficits in short - and long - term memory in certain patients with TLE - Hin short - and long - term memory in certain patients with TLE - Hin certain patients with TLE - HS.

While the regenerative capability of brain cells, in the hippocampus — the part of the brain responsible for learning and memory — slows down as part of the aging process, the Rutgers scientists determined that the process that occurred after a head injury was related to injury and not age.

«In the past it was deemed technically impossible to follow single cell stem cells in the brain over time given the deep localization of the hippocampus in the brain,» said JessbergeIn the past it was deemed technically impossible to follow single cell stem cells in the brain over time given the deep localization of the hippocampus in the brain,» said Jessbergein the brain over time given the deep localization of the hippocampus in the brain,» said Jessbergein the brain,» said Jessberger.

In a new study published in Science, the laboratory of Sebastian Jessberger, professor in the Brain Research Institute of the University of Zurich, has shown for the first time the process by which neural stem cells divide and newborn neurons integrate in the adult mouse hippocampuIn a new study published in Science, the laboratory of Sebastian Jessberger, professor in the Brain Research Institute of the University of Zurich, has shown for the first time the process by which neural stem cells divide and newborn neurons integrate in the adult mouse hippocampuin Science, the laboratory of Sebastian Jessberger, professor in the Brain Research Institute of the University of Zurich, has shown for the first time the process by which neural stem cells divide and newborn neurons integrate in the adult mouse hippocampuin the Brain Research Institute of the University of Zurich, has shown for the first time the process by which neural stem cells divide and newborn neurons integrate in the adult mouse hippocampuin the adult mouse hippocampus.

In a famous set of experiments in human subjects in 2005, neuroscientist Rodrigo Quian Quiroga found that pictures of actor Jennifer Aniston activated a single brain cell in the hippocampus region — the so - called Jennifer Aniston neuroIn a famous set of experiments in human subjects in 2005, neuroscientist Rodrigo Quian Quiroga found that pictures of actor Jennifer Aniston activated a single brain cell in the hippocampus region — the so - called Jennifer Aniston neuroin human subjects in 2005, neuroscientist Rodrigo Quian Quiroga found that pictures of actor Jennifer Aniston activated a single brain cell in the hippocampus region — the so - called Jennifer Aniston neuroin 2005, neuroscientist Rodrigo Quian Quiroga found that pictures of actor Jennifer Aniston activated a single brain cell in the hippocampus region — the so - called Jennifer Aniston neuroin the hippocampus region — the so - called Jennifer Aniston neuron.

Previous studies have shown that the ability of adult mice to grow new nerve cells in the hippocampus can be influenced by genetic background, Gage says, suggesting that this ability may vary widely across species.

Moser demonstrated a number of changes in the strength of connections between nerve cells — a phenomenon called synaptic plasticity — in the hippocampus as rats stored information in their long - term memory.

The scientists zeroed in on the cells from the hippocampi of the cadavers, examining the switch for the stress hormone gene they had studied in rats.

In the hippocampus, activity patterns of nerve cells associated with a particular experience, such as running a maze, reoccur but at a faster pace on replay.

To answer this question of nature versus nurture, the researchers took cells that would grow to become chandelier cells in the hippocampus and transplanted them into the neocortex, and took cells that would grow to become neocortical chandelier cells and transplanted them to the hippocampus.

«Because the structure we detected was similar in all three experimental conditions, we think that we are picking up the fundamental organization of place cells in the hippocampus,» said Itskov.

Scott and his colleagues can now identify «cell sickness» in the part of the hippocampus related to Alzheimer's disease.

In the lab, they adapted the standard experimental technique for studying place cells: implanting electrodes directly into a rat's hippocampus and recording from them as the animal runs freely in a large box (see «A sense of place»In the lab, they adapted the standard experimental technique for studying place cells: implanting electrodes directly into a rat's hippocampus and recording from them as the animal runs freely in a large box (see «A sense of place»in a large box (see «A sense of place»).

Andersen was studying the activity of neurons in the hippocampus — a brain area associated with memory — and the two students wanted to try to link this precise activity of cells with the behaviour of animals.

Neuroscientists Jing Wang and Freda Miller, both then at Toronto's Hospital for Sick Children, showed that when nondiabetic mice are given metformin, their memory improves, thanks to an increase in the neural stem cell population and in the number of these cells that develop into healthy neurons in the hippocampus, the brain's memory center.

By measuring the amount and location of the hippocampus cell firing, the researchers were able to determine that the neurons fired in the exact reverse order of the firing that occurred when the rat scurried from one end of the track to the other.

Given that lot of those brain cells seemed to form down in the area of the hippocampus, which is involved with the memory and with learning, it was an easy jump to naturally assume that they must be involved with that in some way.

The chemical labels newly divided cells, and in their brain tissue, it showed up in a sprinkling of neurons in the hippocampus — a seahorse - shaped structure involved in memory and learning.

From the cells» ages, the group calculated that every day, humans replace 700 of their neurons in the dentate gyrus, a sliver of hippocampus thought to encode memories.

«Many neurons — including those in the hippocampus — showed a sudden burst of activity shortly after eye movements in sleep, typically observed when these cells are «busy» processing new images.»

Michael Young and colleagues derived neural stem cells from the hippocampus of adult rats and then injected them into the gel - like vitrous of eyes in rats showing retinal degeneration.

For their analyses, the scientists specifically colored the places of origin of axons of so - called pyramidal cells in the hippocampus.

The cells were located in a part of the hippocampus — a pair of seahorse - shaped structures located deep within the brain and involved in memory and learning.

Both the healthy mice and the mice without Narp had three times the number of new cells in the hippocampus after ECT than the mice that were given the sham procedure.

By examining the hippocampus — a portion of the brain associated with the process of learning — after the rats learned to associate a sound with a motor response, scientists found that the new brain cells injected with dye a few weeks earlier were still alive in those that had learned the task while the cells in those who had failed did not survive.

To see if Narp played a role in making these new cells in mice, the researchers injected a synthetic molecule, BrdU, to label and allow detection of newly created cells that would become neurons in the hippocampus.

Chen and his team began by studying how reactive glial cells respond to a specific protein, NeuroD1, which is known to be important in the formation of nerve cells in the hippocampus area of adult brains.

«Now that we've found these cells in the hippocampus, it opens up new areas for exploring treatment ideas that we didn't know existed before,» says the study's lead author Jessica Jimenez, PhD, an MD / PhD student at Columbia University's Vagelos College of Physicians & Surgeons.

It was already known that a few weeks after an ECT procedure or after taking an effective antidepressant that stem cells in the hippocampus turn on and make more copies of hippocampal neurons.