Get flash to fully experience Pearltrees
With rendition switcher Question: What is happening in our brain when we feel an emotion? Antonio Damasio: Feeling of an emotion is a process that is distinct from having the emotion in the first place. So it helps to understand what is an emotion, what is a feeling, we need to understand what is an emotion. And the emotion is the execution of a very complex program of actions. Some actions that are actually movements, like movement that you can do, change your face for example, in fear, or movements that are internal, that happen in your heart or in your gut, and movements that are actually not muscular movements, but rather, releases of molecules.
WHEN wondering about the origins of our brain, don't look to Homo sapiens , chimpanzees, fish or even worms . Many key components first appeared in single-celled organisms, long before animals, brains and even nerve cells existed. Dirk Fasshauer of the University of Lausanne, Switzerland, and colleagues were studying a pair of essential neural proteins called Munc18/syntaxin1 when they decided to look for them in very simple, single-celled organisms.
The political differences between liberals and conservatives might run as deep as the brain, researchers suggest. Scientists had previously found that some psychological traits were associated with certain political views. For instance, studies have shown that conservatives tend to be more sensitive to threatening faces, while liberals tend to be more open to new experiences. Political ideology has even been found to leave its footprint in how we set up our bedrooms and offices
Contenu principal The brain, with its billions of interconnected neurons, is without any doubt the most complex organ in the body and it will be a long time before we understand all its mysteries. The Human Brain Project proposes a completely new approach.
The Human Brain The brain has long boggled the mind with its complexity, which is probably best summed up by Carl Sagan in "The Cosmos," when he said, "The brain is a very big place in a very small space." With modern technology, scientists are peering deeper and closer than ever before at the tangle of neurons and their billions of connections. Here's a peek at what the brain looks like, from antiquity to present-day.
Read full article Continue reading page | 1 | 2 | 3 | 4 New Scientist tracks the evolution of our brain from its origin in ancient seas to its dramatic expansion in one ape – and asks why it is now shrinking See gallery: Your brain's family album, from hydra to human IT IS 30,000 years ago. A man enters a narrow cave in what is now the south of France.
The central nervous system (CNS) consists of the brain and the spinal cord, immersed in the cerebrospinal fluid (CSF). Weighing about 3 pounds (1.4 kilograms), the brain consists of three main structures: the cerebrum, the cerebellum and the brainstem. Cerebrum - divided into two hemispheres (left and right), each consists of four lobes (frontal, parietal, occipital and temporal).
Brain diagram. Credit: dwp.gov.uk (PhysOrg.com) -- New research from the UK shows the brain continues to develop after childhood and puberty, and is not fully developed until people are well into their 30s and 40s. The findings contradict current theories that the brain matures much earlier.
Public release date: 7-Dec-2011 [ Print | E-mail | Share ] [ Close Window ] Contact: Anna Blackaby firstname.lastname@example.org 44-024-765-75910 University of Warwick Human minds have hit an evolutionary "sweet spot" and - unlike computers - cannot continually get smarter without trade-offs elsewhere, according to research by the University of Warwick. Researchers asked the question why we are not more intelligent than we are given the adaptive evolutionary process. Their conclusions show that you can have too much of a good thing when it comes to mental performance.
1 Introduction “I think, therefore I am.” —René Descartes, 17th-century philosopher