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.

Insulin resistance in the brain may link Alzheimer’s and epilepsy

Researchers at the University of São Paulo (USP) in Brazil have succeeded in showing, in an animal model, that the process of insulin resistance in the brain affects both Alzheimer's disease and epilepsy and may be a linking factor between the two diseases.

22 May 2025

Brain imaging study reveals the power of 'eureka moments'

Have you ever been stuck on a problem, puzzling over something for what felt like ages without getting anywhere, but then suddenly the answer came to you like a bolt from the blue?

15 May 2025

Advanced microscopy reveals how hormonal fluctuations shape the brain

Hormone levels fluctuate like the tides, ebbing and flowing according to carefully orchestrated cycles.

13 May 2025

Obesity in teens alters brain regions tied to memory and emotion

Adolescents with abdominal obesity have larger brain regions linked to memory and emotional control, potentially due to inflammation, according to a large MRI-based study. These brain changes, coupled with socioeconomic disadvantage, may impair cognitive and emotional development during adolescence.

10 May 2025

Study links sleep apnea to damage in brain areas critical for memory

Obstructive sleep apnea, a condition that causes lower oxygen levels during sleep, is linked to degeneration of brain regions associated with memory through damage to the brain's small blood vessels, according to a study published May 7, 2025, online in Neurology, the medical journal of the American Academy of Neurology.

7 May 2025

New micropipette allows precise ion delivery to individual brain cells

Researchers at Linköping University have developed a new type of pipette that can deliver ions to individual neurons without affecting the sensitive extracellular milieu.

7 May 2025

New research maps neural overlap in insomnia, depression, and anxiety

New research from the Netherlands Institute for Neuroscience maps the similarities and differences between the three most common brain disorders.

3 May 2025

Study shows brain estrogen directly regulates appetite in mice

Researchers in Japan found that estrogen produced within the brain, called neuroestrogen, suppresses appetite and reduces body weight in mice by enhancing MC4R expression. The study also showed that neuroestrogen boosts leptin sensitivity, suggesting new targets for obesity treatment.

2 May 2025

High fructose diets impair brain function and appetite control, study shows

Review highlights how excessive fructose intake disrupts brain energy balance, appetite regulation, and cognitive function. Processed sources, such as sugary drinks, may overwhelm metabolic pathways and induce neuroinflammation, particularly during adolescence.

30 Apr 2025

Brain stimulation at 40Hz boosts memory and neurogenesis in Down syndrome mice

Study provides new evidence that sensory stimulation of gamma-frequency brain rhythm may promote broad-based restorative neurological health response.

25 Apr 2025

Exploring the science behind blank minds and conscious gaps

Mind blanking is a common experience with a wide variety of definitions ranging from feeling "drowsy" to "a complete absence of conscious awareness."

24 Apr 2025

Low vitamin K intake may adversely affect cognition as people get older

As scientists seek to unravel the intricate potential connections between nutrition and the aging brain, a new study from researchers at the Jean Mayer USDA Human Nutrition Research Center on Aging (HNRCA) at Tufts University is shedding light on how insufficient consumption of vitamin K may adversely affect cognition as people get older.

11 Apr 2025

The thalamus could be a strategic target for treating cognitive dysfunction

Years ago, as a neurology resident, Chinfei Chen, MD, PhD, cared for a 20-year-old woman who had experienced a very small stroke, affecting only the thalamus.

7 Apr 2025

New drug restores vision by regenerating retinal nerves

Vision is one of the most crucial human senses, yet over 300 million people worldwide are at risk of vision loss due to various retinal diseases.

1 Apr 2025

Weight training shields the brain from dementia in older adults

The benefits of weight training are many: it promotes gains in strength and muscle mass, reduces body fat, and contributes to well-being and mental health.

1 Apr 2025

Study links childhood air pollution exposure to weaker brain connections

A new study led by the Barcelona Institute for Global Health (ISGlobal), a centre supported by the "la Caixa" Foundation, has found that children exposed to higher levels of air pollution in early and mid childhood have weaker connections between key brain regions.

1 Apr 2025

Study finds association between heart dysfunction and smaller brain volumes

People who have early signs of heart problems may also have changes in brain health that can be early signs of dementia, such as loss of brain volume, according to a meta-analysis published on March 26, 2025, online in Neurology, the medical journal of the American Academy of Neurology.

26 Mar 2025

Study links type 2 diabetes to weakened reward signals in the brain

The high comorbidity of type 2 diabetes (T2D) with psychiatric or neurodegenerative disorders points to a need for understanding what links these diseases.

24 Mar 2025

New insights into how sleep reorganizes neuronal activity for better memory

Why is sleep so important for learning and memory? Neuroscientists from the Csicsvari group at the Institute of Science and Technology Austria (ISTA) provided new insight into this essential function by monitoring neuronal activity in rat brains for up to 20 hours of sleep following spatial learning.

24 Mar 2025

Research finds evidence that infants can encode memories in early life

Though we learn so much during our first years of life, we can't, as adults, remember specific events from that time. Researchers have long believed we don't hold onto these experiences because the part of the brain responsible for saving memories - the hippocampus - is still developing well into adolescence and just can't encode memories in our earliest years.

21 Mar 2025