By Carl Zimmer

Show description

Read or Download Brain Cuttings: Fifteen Journeys Through the Mind PDF

Best two hours or more books

Raja-Vidya: The King of Knowledge by His Divine Grace A. C. Bhaktivedanta Swami Prabhupada PDF

During this little jewel of a publication, in accordance with the Bhagavad-gita, Srila Prabhupada explains that the king of data is wisdom of God, his construction, and ourselves -- and the relationships among those. He explains that find out how to reach this data is thru bhakti-yoga, devotional provider to the Lord, starting with the chanting of the maha-mantra, Hare Krsna, Hare Krsna, Krsna Krsna, Hare Hare/ Hare Rama, Hare Rama, Rama Rama, Hare Hare.

Integrated Planning for the Air Force Senior Leader - download pdf or read online

Describes the history for and techniques utilized in a research performed to higher know how to strengthen leaders who own the operational wisdom and technical abilities had to practice successfully in senior Air strength positions.

Read e-book online Perspective Drawing in Adobe Illustrator CS5 PDF

 Adobe Illustrator CS5 brings to clients a hitherto new paradigm of vector drawing - standpoint or “3D-like” drawing. The ratings of questions requested via pre-release testers of Illustrator CS5 because of loss of acquaintance with the terminology of standpoint encouraged the authors—members of the Illustrator improvement staff— to jot down this ebook.

Download PDF by Massad Ayoob: Gun Digest's Concealed Carry Mindset & Principles eShort

During this excerpt from the Gun Digest booklet of hid hold, Massad Ayoob teaches hid hold frame of mind - together with the CCW way of life, why we supply, the place you could and cannot hold plus training and aftermath of a self-defense state of affairs.

Additional info for Brain Cuttings: Fifteen Journeys Through the Mind

Sample text

These studies show that anesthesia causes the entire brain to power down. Its activity will drop between 30 and 60 percent. But the results of these studies are ambiguous, since each brain regions may respond differently to a different drug. Despite this uncertainty, one region consistently becomes quieter than average. It’s a grape-size cluster of neurons almost dead center in the brain known as the thalamus. Is the thalamus the brain’s power switch? It certainly has the right stuff for the job.

Consciousness is the brain’s ability to be in a complex state, even in response to a simple stimulus like a tone. The vast number of different states our brains can enter when we are aware gives consciousness its marvelously rich feeling. In order to produce those states, the brain needs to use many elements, each of which is active and able to respond. It also needs the mass transit system that links all the elements together. Working from this hypothesis, Tononi and his colleagues are trying to develop tools that can monitor levels of consciousness in anesthetized patients.

Meck’s model has been supported in a number of experiments. The most surprising of these was carried out by UCLA scientists on cocaine addicts. The rush of cocaine is due to the way it floods the brain with a neurotransmitter known as dopamine. Dopamine regulates how quickly neurons fire. And as neurons fire faster, cocaine addicts experience time differently than other people. In one experiment, scientists had people wait for a bell to ring and then guess how long they had waited. The right answer was 53 seconds.

Download PDF sample

Brain Cuttings: Fifteen Journeys Through the Mind by Carl Zimmer

by Ronald

Rated 4.69 of 5 – based on 18 votes