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Posts tagged: hippocampus

Association Between Small Hippocampus And Depression In The Elderly: Risk Factor Or Shrinkage?

July 20, 2011
Imaging studies have repeatedly found that people with depression have smaller hippocampal volumes than healthy individuals. The hippocampus is a brain region involved in learning and memory, spatial navigation, and the evaluation of complex life situations or "contexts". However, because in prior studies hippocampal volume was only measured in people ...

Small hippocampus associated with depression in the elderly: Risk factor or shrinkage?

July 19, 2011
Imaging studies have repeatedly found that people with depression have smaller hippocampal volumes than healthy individuals. The hippocampus is a brain region involved in learning and memory, spatial navigation, and the evaluation of complex life situations or "contexts". However, because in prior studies hippocampal volume was only measured in people ...

Small hippocampus associated with depression in the elderly: Risk factor or shrinkage?

July 19, 2011
Philadelphia, PA, 19 July, 2011 - Imaging studies have repeatedly found that people with depression have smaller hippocampal volumes than healthy individuals. The hippocampus is a brain region involved in learning and memory, spatial navigation, and the evaluation of complex life situations or "contexts". However, because in prior studies hippocampal ...

Small hippocampus associated with depression in the elderly: Risk factor or shrinkage?

July 19, 2011
(Elsevier) Imaging studies have repeatedly found that people with depression have smaller hippocampal volumes than healthy individuals. The hippocampus is a brain region involved in learning and memory, spatial navigation, and the evaluation of complex life situations or "contexts". It has been unclear whether a small hippocampus renders a person ...

Ensembles of neurons in the brain’s hippocampus inform about future as well as past experiences

March 25, 2011
When a mammal explores an unfamiliar environment, ensembles of ‘place’ cells in the hippocampus fire individually, recording specific locations in a cognitive map that aid future spatial navigation of the area. Once the relationship between place cell activity and location has been established, the activity of the cells can be ...

Hippocampus smaller in veterans not recovered from PTSD

March 16, 2011
(PhysOrg.com) -- The hippocampus, a brain area associated with memory and stress, was about six percent smaller on average in veterans with current chronic PTSD than in veterans who had recovered from PTSD, in a study conducted by researchers at the San Francisco VA Medical Center and the University of ...

Discovery of schedule for circuit formation in the hippocampus

March 2, 2011
Neurobiologists from the Friedrich Miescher Institute for Biomedical Research have determined the schedule of neuronal circuitry assembly in the hippocampus. As published online in Nature Neuroscience, they are the first to show that in the hippocampus, subpopulations of neurons follow a defined schedule for maturation, forming of synapses and connecting ...

Moderate aerobic exercise in older adults shown to modify brain hippocampus, improve memory

January 31, 2011
A new study shows that one year of moderate physical exercise can increase the size of the brain's hippocampus in older adults, leading to an improvement in spatial memory.

Researchers find ZIP protein removal in hippocampus cell protects them from injury

January 5, 2011
Researchers in the Blue Bird Circle Developmental Neurogenetics Laboratory in the department of neurology at Baylor College of Medicine have discovered that zinc enters cells through specialized protein gates known as ZIP transporters, and removing these ZIP proteins from cells in the hippocampus significantly protects them from injury.

Study suggests reliance on GPS may reduce hippocampus function as we age

November 18, 2010
(PhysOrg.com) -- McGill University researchers have presented three studies suggesting depending on GPS to navigate may have a negative effect on brain function, especially on the hippocampus, which is involved in memory and navigation processes.

Decision making: Replays in hippocampus part of complex process

March 12, 2010
Replaying recent events in the area of the brain called the hippocampus may have less to do with creating long-term memories, as scientists have suspected, than with an active decision-making process, suggests a new study by researchers at Carnegie Mellon University and the University of Minnesota Medical School.

Functional connection between hippocampus and cortex modulates anxiety

January 27, 2010
A new study demonstrates that cooperation between the hippocampus, best known for its critical role in learning and memory, and a principal downstream cortical target modulates anxiety-related behaviors in mice. The research, published by Cell Press in the January 28th issue of the journal Neuron, provides intriguing insight into how ...