Brain facts

What happens when a metal bar gets stuck between our cheek and forehead?

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?

Brain facts

How can we start fearing something even before consciously realising it?

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?

Brain facts

What is the “fight-or-flight” response?

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?