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.

Oligophrenin-1 signaling protein linked to mental retardation controls synapse maturation, plasticity

A team of neuroscientists at Cold Spring Harbor Laboratory (CSHL) has demonstrated the mechanism by which a signaling protein found throughout the brain controls the maturation and strength of excitatory synapses, the tiny gaps across which the majority of neurons communicate.

1 Jun 2009

MRI analysis software helps identify early Alzheimer’s disease

Analyzing MRI studies of the brain with software developed at the Martinos Center for Biomedical Imaging at Massachusetts General Hospital (MGH) may allow diagnosis of Alzheimer's disease and of mild cognitive impairment, a lesser form of dementia that precedes the development of Alzheimer's by several years.

21 May 2009

Relationship discovered between tumors and depression

In a study that could help explain the connections between depression and cancer, researchers at the University of Chicago have used an animal model to find, for the first time, a biological link between tumors and negative mood changes.

18 May 2009

Research suggests potential new treatment for anxiety disorders and depression

New research on a brain chemical involved in development sheds light on why some individuals may be predisposed to anxiety. It also strengthens understanding of cellular processes that may be common to anxiety and depression, and suggests how lifestyle changes may help overcome both

12 May 2009

Meditation may increase gray matter

Push-ups, crunches, gyms, personal trainers - people have many strategies for building bigger muscles and stronger bones. But what can one do to build a bigger brain?

12 May 2009

Potential molecular target for new schizophrenia treatments

A study on schizophrenia has implicated machinery that maintains the flow of potassium in cells and revealed a potential molecular target for new treatments. Expression of a previously unknown form of a key such potassium channel was found to be 2.5 fold higher than normal in the brain memory hub of people with the chronic mental illness and linked to a hotspot of genetic variation.

5 May 2009

New findings on how lithium may help radiation target cancer

Vanderbilt-Ingram Cancer Center investigators have uncovered a mechanism that helps explain how lithium, a drug widely used to treat bipolar mood disorder, also protects the brain from damage that occurs during radiation treatments.

4 May 2009

A glimpse at vision: First impressions count

Human beings far outpace computers in their ability to recognize faces and other objects, handling with ease variations in size, color, orientation, lighting conditions and other factors.

29 Apr 2009

Discovery of novel protein which, when over-expressed, leads to a dramatic increase in the generation of A-beta

A defining hallmark of Alzheimer's disease is the accumulation of the amyloid beta protein (A-beta), otherwise known as "senile plaques," in the brain's cortex and hippocampus, where memory consolidation occurs.

27 Apr 2009

Researchers discover that gene switches on during development of epilepsy

A discovery made by researchers at Wake Forest University School of Medicine while studying mice may help explain how some people without a genetic predisposition to epilepsy can develop the disorder.

23 Apr 2009

Researchers show how PCBs may alter in utero, neonatal brain development

In three new studies - including one appearing online in the Public Library of Science - Biology (PLoS - Biology) - UC Davis researchers provide compelling evidence of how low levels of polychlorinated biphenyls (PCBs) alter the way brain cells develop.

13 Apr 2009

Rogue Alzheimer's gene causes early brain changes

British scientists have found that some young adults who carry a certain genetic variant have an increased risk of developing Alzheimer's disease and distinct brain patterns and changes in their brain activity started decades before any symptoms appeared.

8 Apr 2009

Young adults at future risk of Alzheimer's have different brain activity

Young adults with a genetic variant that raises their risk of developing Alzheimer's Disease show changes in their brain activity decades before any symptoms might arise, according to a new brain imaging study by scientists from the University of Oxford and Imperial College London.

6 Apr 2009

Gulf War veterans display abnormal brain response to specific chemicals

A new study by UT Southwestern Medical Center researchers is the first to pinpoint damage inside the brains of veterans suffering from Gulf War syndrome - a finding that links the illness to chemical exposures and may lead to diagnostic tests and treatments.

22 Mar 2009

Shrinking in hippocampus area of brain precedes Alzheimer's disease

People who have lost brain cells in the hippocampus area of the brain are more likely to develop dementia, according to a study published in the March 17, 2009, print issue of Neurology, the medical journal of the American Academy of Neurology.

16 Mar 2009

Cause of severe pediatric epilepsy disorder discovered

Researchers at the University of California, San Diego School of Medicine have discovered that convulsive seizures in a form of severe epilepsy are generated, not on the brain's surface as expected, but from within the memory-forming hippocampus.

16 Mar 2009

Does stress damage the brain?

In the March 1st issue of Biological Psychiatry, published by Elsevier, a paper by Tibor Hajszan and colleagues provides an important new chapter to this question.

16 Mar 2009

Alzheimer's disease therapeutic prevents long-term damage from TBI in pre-clinical studies

A class of Alzheimer's disease drugs currently studied in clinical trials appears to reduce damage caused by traumatic brain injury in animals, researchers at Georgetown University Medical Center report in an upcoming advance online publication of Nature Medicine.

15 Mar 2009

Researchers show how the hippocampus records memory

It may be possible to "read" a person's memories just by looking at brain activity, according to research carried out by Wellcome Trust scientists.

12 Mar 2009

Cracking the spatial memory code

Researchers have shown that they can tell where a person is "standing" within a virtual reality room on the basis of the pattern of activity in the brain alone.

12 Mar 2009