Tag Archives: brain

Can prolonged exposure to cortisol excess have an irreversible effect on emotion-related brain areas?

Cortisol is a hormone produced in humans by adrenal glands and it is necessary to live. In healthy people, cortisol level naturally increases in response to stressful situations, but when cortisol level in the body is too

A new representation of the nervous system: the hypermatrix

It is a big challenge to develop the most appropriate mathematical model to describe the electrical activity of different groups of neurons. There are more neurons in the nervous system (about 86 billion) than we have seconds

CSF-1 receptor and its activators – new players in the nervous system and neurological disease

Macrophages, meaning big eater (from the Greek, makros (large) and phagein (to eat)), are cells, present in all tissues of the body, that engulf and degrade large foreign particles, such as microbes and also scavenge abnormal self

Listen up: Our brains prepare to ‘tune in’ to a voice of interest

A fundamental challenge of human communication is to understand what someone’s saying in the presence of background noise—for example, when several conversations occur at the same time. In these situations, accurate speech understanding relies on the critical

Of flies and men: investigating human disease in fruit flies

My lab studies diseases which affect the neurons connecting our brains to the muscles throughout our bodies, called motor neurons. In particular, we are interested in the hereditary spastic paraplegias (or HSPs for short), a group of

Ventral medial prefrontal cortex: is it a brain target for drug-seeking control?

A weak direct current applied non-invasively (transcranial Direct Current Stimulation – tDCS) over the scalp in both sides over the frontal lateral region of the head, corresponding to what it is called as the dorsolateral prefrontal cortex,

Mapping red nucleus connections in humans by using dMRI and tractography

Human brain is an enormous and complex network. Central to current scenario on brain networks is the concept of the connectome, which likely describes patterns at multiple levels of scale, for instance, by encompassing connections between the

Inflammation alters brain function and pain processing centrally

In the last couple of years, some fascinating abilities of the immune system have emerged: The immune system is tightly interconnected with the nervous system, and can directly affect how the brain functions, and how a person

What makes people under stress more vulnerable to become addicted to cocaine? Brain BDNF may be the key

Annually, drug addiction leads to 0.5 – 1.3% of mortality for people between 15-64 years of age and has an estimated economic impact of $524 billion in the U.S, due to addiction-related health care, loss of productivity,

Brain bypass: current trends in the treatment of patients with complex cerebrovascular disease

Cerebral Revascularization or bypass is the neurosurgical equivalent of coronary artery bypass. In these procedures a surgeon uses existing vessels in the head and brain or vessels harvested from another part of the body to either replace

Pedophilia emerging in a 64 years old pediatrician

Everyone knows what pedophilia is, but probably only few people are aware that pedophilia might also emerge anytime in life as a consequence of brain damage. Indeed, sometimes pedophilic behavior could be observed in old people with

Neurofeedback for ADHD – specific effects on behaviour and brain

Children with ADHD (Attention Deficit/Hyperactivity Disorder) are commonly described as having difficulties in controlling their attention and in regulating and especially withholding actions when they are inadequate. One common way of addressing these problems is medication. While

“What a long headache you’ve had!” Lingering concussion symptoms may not be what they appear in kids

For most children with a concussion, their symptoms disappear in 1-2 weeks. However, up to 15%-30% of children with a concussion will have symptoms that last 3 months or more. On-going symptoms are important for healthcare providers

Brain imaging of the oldest old who aged successfully

The oldest old, defined as 90 years and over, is the fastest growing segment of the population worldwide. Dementia is one of the major health challenges at this age, since the risk of dementia increases steadily with

Can metal-exposure induce innate immune reactivity in brain cells and thus contribute to neurotoxicity?

Use of metals in dentistry is quite common for braces, crowns, fillings, implants. Problems sometimes occur, such as allergy, locally inflamed mucosae, or vague symptoms throughout the entire body. However, alternatives such as methacrylates will never completely

Tuning rapid brain response to rare emotional stimuli may calm down impulsivity

We may have experiences of doing something on impulse (e.g., impulse buying). Although impulsivity helps us to explore something new, and is important for establishing a prominent leadership to head up people in our communities. However, unusual