Tag: skull

Oldest Human Brain Found

Archaeologists have found the remains of what could be Britain’s oldest surviving human brain.

Archaeologists have found the remains of what could be Britain’s oldest surviving human brain.

Human brain evolution, from the earliest shrewlike mammals through primates to hominids, is marked by a steady increase in encephalization, or the ratio of brain to body size. The human brain has been estimated to contain 50–100 billion neurons, of which about 10 billion are cortical pyramidal cells. These cells pass signals to each other via around 100 trillion synaptic connections.

According to BBC article:

Brains consist of fatty tissue which microbes in the soil would absorb, so neurologists believe the find could be some kind of fossilised brain.

The skull was found in an area first farmed more than 2,000 years ago.

More tests will now be done to establish what it is actually made of.

Our Brain Ahead Of Us By 10 Seconds

A new fMRI study finds that the outcome of freely made decisions is encoded in prefrontal and parietal cortices up to ten seconds before conscious awareness. Thus, these brain regions begin to prepare an upcoming choice before subjects are aware of it.

The brain is a part of the body that allows us to make sense of the world around us and to change our behavior to respond to it. In most animals, the brain is inside the head. The brain is kept safe by the skull and by layers of tissue under it called the meninges.

The human brain controls the central nervous system (CNS), by way of the cranial nerves and spinal cord, the peripheral nervous system (PNS) and regulates virtually all human activity.

A study has revealed that the brain makes decisions about 10 seconds prior to a person realizes it. Experts involved in the study said that looking at brain activity while making a decision, they could predict the choices the subjects would make, before they realized that they had made a decision.

=> Unconscious determinants of free decisions in the human brain