Sentences with phrase «by cells in the hippocampus»

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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.

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.

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.

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.

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.

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.

In contrast, hippocampal engram cells were activated by natural cues on the second day after receiving a foot shock, but not on day 13 — indicating engrams in the hippocampus become active immediately, but gradually fade into a «silent» statIn contrast, hippocampal engram cells were activated by natural cues on the second day after receiving a foot shock, but not on day 13 — indicating engrams in the hippocampus become active immediately, but gradually fade into a «silent» statin the hippocampus become active immediately, but gradually fade into a «silent» state.

By looking at the hippocampus in 55 post-mortem brains aged between 19 and 92, Frisén's team found that a subset of neurons in an area of the hippocampus called the dentate gyrus are indeed created throughout adulthood (Cell, doi.org/ms8).

The research team selectively overexpressed a transcription factor, Klf9, only in older neurons in mice, which eliminated more than one - fifth of their dendritic spines, increased the number of new neurons that integrated into the hippocampus circuitry by two-fold, and activated neural stem cells.

Those key cells are called GABAergic interneurons in the hilus of the hippocampus, an area of the brain involved in learning and memory and affected by Alzheimer's disease.

The idea that the activity of a place cell is predictive and can be modified by learning and the behavior of other animals may make it easier to conceptualize an all - encompassing framework that ties together the hippocampus» role in spatial navigation with its well - established role in learning and memory formation.

Other rodent experiments have showed increased neurogenesis in brains of rats maintained on an alternate - day fasting diet, as evident by increased number of newly generated neural cells in the hippocampus (21).

Lobelia also acts as an antidepressant by hindering cell proliferation in the hippocampus and inducing dopamine release in the brain.