Hippocampus News and Research

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The hippocampus is a part of the forebrain, located in the medial temporal lobe. It belongs to the limbic system and plays major roles in short term memory and spatial navigation. Humans and other mammals have two hippocampi, one in each side of the brain.

Training can change adult brain's structure

As London taxi drivers in training are busy learning how to navigate the city's thousands of streets and places of interest over a period of years, the experience actually changes the very structure of their brains, according to a report published online on December 8 in Current Biology, a Cell Press publication.

9 Dec 2011

Animal study offers insights into possible drug targets to improve memory as we age

Drugs that affect the levels of an important brain protein involved in learning and memory reverse cellular changes in the brain seen during aging, according to an animal study in the December 7 issue of The Journal of Neuroscience. The findings could one day aid in the development of new drugs that enhance cognitive function in older adults.

8 Dec 2011

First study of cortisol awakening response in infants

Cortisol may be the Swiss Army knife of hormones in the human body -- just when scientists think they understand what it does, another function pops up. While many of these functions are understood for adults, much less is known about how cortisol operates in babies and toddlers, especially when it comes to an important phenomenon called the cortisol awakening response, or CAR.

2 Dec 2011

Removing amyloid beta can restore sense of smell in mouse model of Alzheimer's

One of the earliest known impairments caused by Alzheimer's disease - loss of sense of smell - can be restored by removing a plaque-forming protein in a mouse model of the disease, a study led by a Case Western Reserve University School of Medicine researcher finds.

30 Nov 2011

Carefully selected young, healthy neurons can repair brain circuitry

Neuron transplants have repaired brain circuitry and substantially normalized function in mice with a brain disorder, an advance indicating that key areas of the mammalian brain are more reparable than was widely believed.

24 Nov 2011

Exposure to loud noises induces plasticity in hippocampus

Neuroscientists at The University of Texas at Dallas are examining whether multiple areas of the brain are culpable in causing tinnitus, research that could enable new medical interventions against the disabling effects of severe "ringing in the ears."

22 Nov 2011

Researchers describe how brain handles spatial resolution

Everybody knows how to zoom in and out on an online map, to get the level of resolution you need to get you where you want to go. Now researchers have discovered a key mechanism that can act like a zoom button in the brain, by controlling the resolution of the brain's internal maps.

18 Nov 2011

Sex during adolescence can have negative effects on body and mood well into adulthood

A new study suggests that sex during adolescence can have lasting negative effects on the body and mood well into adulthood, most likely because the activity occurs when the nervous system is still developing.

16 Nov 2011

UCLA School of Nursing faculty members to present at AHA 2011

A failing heart's effect on the short-term memory. The impact of telephone interventions on behaviors in Latinos. Depression and heart disease. Risk factors contributing to premature coronary atherosclerosis in premenopausal women. These are just a few of the research findings that will be presented by faculty members of the UCLA School of Nursing at the American Heart Association's Scientific Sessions, being held November 12 - 16 in Orlando, FL.

14 Nov 2011

Study: Children with autism have more prefrontal brain neurons

In a small, preliminary study that included 13 male children, those with autism had an average 67 percent more prefrontal brain neurons and larger than average brain weight, than children without autism, according to a study in the Nov. 9 issue of JAMA.

9 Nov 2011

Cerebellum contributes to creation of cognitive map in the hippocampus

The cerebellum is far more intensively involved in helping us navigate than previously thought. To move and learn effectively in spatial environments our brain, and particularly our hippocampus, creates a "cognitive" map of the environment. The cerebellum contributes to the creation of this map through altering the chemical communication between its neurones. If this ability is inactivated, the brain is no longer able to to create an effective spatial representation and thus navigation in an environment becomes impaired.

4 Nov 2011

Nmnat1 protein may help prevent brain damage in babies with cerebral palsy

Scientists at Washington University School of Medicine in St. Louis have shown that a protein may help prevent the kind of brain damage that occurs in babies with cerebral palsy.

3 Nov 2011

Birth control shot may impair a person's memory

The birth control shot Depo Provera offers a convenient alternative for women who don't want to remember to take a daily pill. Ironically, research from Arizona State University has shown the shot actually may impair a person's memory.

2 Nov 2011

Hippocampus supports both recollection and familiarity memories

Human memory has historically defied precise scientific description, its biological functions broadly but imperfectly defined in psychological terms. In a pair of papers published in the November 2 issue of The Journal of Neuroscience, researchers at the University of California, San Diego report a new methodology that more deeply parses how and where certain types of memories are processed in the brain, and challenges earlier assumptions about the role of the hippocampus.

2 Nov 2011

Study: People with schizophrenia have weakened sense of body ownership

A study using a procedure called the rubber hand illusion has found striking new evidence that people experiencing schizophrenia have a weakened sense of body ownership and has produced the first case of a spontaneous, out-of-body experience in the laboratory.

1 Nov 2011

Microglia plays a key role in memory and learning

Immune system cells of the brain, which scavenge pathogens and damaged neurons, are also key players in memory and learning, according to new research by Duke neuroscientists.

27 Oct 2011

EMA, FDA endorse use of biomarkers in Alzheimer's drug trials

A news feature in Alzforum explains the impact of new guidelines for selecting volunteers in clinical trials of Alzheimer's drugs. The European Medicines Agency (EMA), the European counterpart to the U.S. Food and Drug Administration (FDA), has endorsed the use of biomarkers—substances in the body or measurements that serve as indicators of disease—to select patients to be included in drug trials.

20 Oct 2011

Hippocampus plays an active role in suppressing pain during times of stress

New findings about how the brain functions to suppress pain have been published in the leading journal Pain, by NUI Galway researchers. For the first time, it has been shown that the hippocampus of the brain, which is usually associated with memory, has an active role to play in suppressing pain during times of stress.

13 Oct 2011

New insight into mechanisms of hippocampal rhythms

A research team from Berlin, Munich and Haifa has presented new findings concerning the function of the hippocampus, a region of the brain that is important for memory formation.

7 Oct 2011

Viewing computer images causes long-term changes in nerve cell connections

Viewing two-dimensional images of the environment, as they occur in computer games, leads to sustained changes in the strength of nerve cell connections in the brain.

27 Sep 2011