During neurodevelopment, the brain fabricates an incredible number of neurons which then migrate to specific parts of the brain. The development of new neurons is active all the way through … Continue Reading Study identifies how adult brain circuits regulate new neuron production.
The human brain is the source of a person’s thoughts, emotions, perceptions, actions, and memories. One challenge for neuroscience is to achieve an integrated understanding of brain-wide interactions, particularly the … Continue Reading Study identifies new function for the hippocampus.
Marijuana is a psychoactive sedative drug and is derived from the hemp plant, Cannabis sativa. Its leaves and buds can be smoked, taken in food, brewed in tea or taken … Continue Reading Neuroimaging shows that marijuana users have low blood flow to the brain.
Alzheimer’s disease is characterized by the degeneration of neurons in the hippocampus and cortex, and the appearance of neuritic plaques and neurofibrillary tangles. Although the precise cause of Alzheimer’s disease remains … Continue Reading Researchers elevate brain protein to allay symptoms of Alzheimer’s in animal model.
Exercise is well-known for its cognitive benefits because it causes neurogenesis, the creation of new neurons, in the hippocampus, which is a key brain region for learning, memory and mood … Continue Reading Research refutes famous study, shows neurons created through exercise don’t erase old memories.
The hippocampus is a critical structure for encoding of novel experiences. A particularly compelling puzzle is how the hippocampus encodes new information in the presence of interference from past memories. … Continue Reading Neuroimaging shows how the brain switches from past to present memory mode.
Whenever a person learns something new or is affected by their experiences it’s because synapses, the connections between neurons in the brain, have changed. Sometimes new synapses are made, and … Continue Reading Study shows how astrocytes help control synapse strength and plasticity.
Scientists have long speculated that schizophrenia, which affects about 1 in every 100 adults worldwide, originates in part in the hippocampus, the brain’s headquarters for memory and spatial navigation. As … Continue Reading Schizophrenia linked to loss of cells in brain’s memory centre for the first time.
Approximately one out of a hundred people suffer from epilepsy and one out of twenty suffer a seizure at least once during their lifetime. Seizures occur when many nerve cells … Continue Reading Researchers identify a new neural mechanism in epilepsy.
Ghrelin is a peptide released from the empty stomach into circulation, and which acts on the brain to promote appetite. Recent studies showed that ghrelin also affects learning and memory, … Continue Reading Study identifies previously unknown mechanism of memory formation in the brain.
Cognitive function is known to change during normal aging and in age-related disease such as Alzheimer’s disease. Although the exact cause for age-related cognitive decline is not clear, recent studies … Continue Reading Researchers combat memory loss by enhancing brain function in animal model.
Everyone occasionally feels blue or sad. However, these feelings are usually short-lived and pass within a couple of days. When a person has depression, it interferes with daily life. Depression … Continue Reading Study identifies new diagnostic brain protein in depression.
In their everyday life, people are constantly confronted with decision conflicts, especially if they need to suppress an action that would have made sense under normal circumstances. For example, when … Continue Reading Neuroimaging shows that the human hippocampus is involved in quick and successful decisions.
Currently there is no effective treatments for Alzheimer’s disease, so the focus is on prevention. In the future, medical teams may be able to provide patients with useful and actionable … Continue Reading Cardiovascular risk factors linked to Alzheimer’s disease in human study.
A team from the University of South Carolina have been studying one of the fundamental biomolecules contributing to human addiction, the mu-opioid receptor. It’s a protein in the human body … Continue Reading Researchers begin to map the neurogenetics of susceptibility in addiction.
A new study from researchers at the Douglas Institute and McGill University, suggests that the integration of new neurons in the adult brain is a phenomenon more generally compromised in … Continue Reading Human olfactory bulb neurogenesis study sheds light on depression.