In this week post I will present to you the case of Phineas Gage, an American railroad worker whose case change drastically the knowledge of the frontal lobes (you can see one of his pictures below). The famous picture of Phineas Gage, holding the metal bar that pierced is skull. From neuroscienze.net This incredible story… Continue reading What happens when a metal bar gets stuck between our cheek and forehead?
Following up on last week’s new theme (have a look here if you missed it), today I will introduce to you a new area of the brain: the amygdala. The amygdala is an almond-shaped cluster of nuclei located deep and medially within the temporal lobes of the brain in complex vertebrates, including humans (see picture… Continue reading How can we start fearing something even before consciously realising it?
In my last week’s post (if you missed it, have a look here), while I was talking about how the first studies on memory started and the animal model used, I mentioned a particular structure of the brain called hippocampus. Since I have been mentioning different areas of the brain also while I was presenting… Continue reading Why is the hippocampus important in memory formation?
For this week post, I decided to take another break from my last year of Master’s studies and I will write about the Moyamoya disease. I came across this disease by watching a Netflix’s series called “Explained” (very interesting and educative, they talk about the most different topics and if you have some time to… Continue reading Can music stop making sense?
Today I will talk again about the neuromodulators used by the brain (you can find a quick description of what a neuromodulator is here and a description of serotonin, oxytocin, adrenaline and dopamine by clicking on their names) and I will write about the neuropeptide Y (NPY), the most abundant neuropeptide in the brain that,… Continue reading Do we have an anxiolytic neuromodulator?
On this post I will continue writing about neurotransmitters (see this post for a quick explanation of the term neurotransmitter) and today I will focus on dopamine, a neurotransmitter involved in movement, or better, motor control (unfortunately, defects in the dopaminergic systems are well known by Parkinson patients and their families) as well as executive… Continue reading What about the “molecule of motivation”?
Following up on my neuromodulators topic (have a look at my previous posts about serotonin and oxytocin), today I will talk about the “stress” or “fight-or-flight” hormone: adrenaline. Experiencing a stressful event usually triggers the release of adrenaline, the “stress hormone”, that in turn produces well-orchestrated physiological changes. The stress response begins in the brain,… Continue reading What is the “fight-or-flight” response?
Following up on chemical messengers used by the brain and their modulators, today I will talk about oxytocin, the “love molecule”. Oxytocin is a neuromodulator, that is, as I already written on my previous post about serotonin, a molecule able to modulate the transmission of information among neurons. However, oxytocin is also a hormone (basically,… Continue reading What about the love molecule?
Unfortunately, my period of depression is still on and despite few moments of calm and tranquility, as soon as something happens, I fall right back down into it and getting back to a positive view and to quiet seas were to swim happily before finally being able to touch dry land and get out of… Continue reading Which is the “molecule of happiness”?