How God Changes Your Brain

[Veritas]

Amazon.com: How God Changes Your Brain: Breakthrough Findings from a Leading Neuroscientist: Andrew Newberg M.D., Mark Robert Waldman: Books#

A new book some of you may be interested in. Here's the publishers write up:

Over the past decade or so, numerous studies have suggested that prayer and meditation can enhance physical health and healing from illness. In this stimulating and provocative book, two academics at the University of Pennsylvania's Center for Spirituality and the Mind contend that contemplating God actually reduces stress, which in turn prevents the deterioration of the brain's dendrites and increases neuroplasticity. The authors conclude that meditation and other spiritual practices permanently strengthen neural functioning in specific parts of the brain that aid in lowering anxiety and depression, enhancing social awareness and empathy, and improving cognitive functioning. The book's middle section draws on the authors' research on how people experience God and where in the brain that experience might be located. Finally, the authors offer exercises for enhancing physical, mental and spiritual health. Their suggestions are commonsensical and common to other kinds of health regimens: smile, stay intellectually active, consciously relax, yawn, meditate, exercise aerobically, dialogue with others and trust in your beliefs. Although the book's title is a bit misleading, since it is not God but spiritual practice that changes the brain, this forceful study could stir controversy among scientists and philosophers. Illus. (Mar. 24)

 

[Sphinx777]

The brain is the center of the nervous system in all vertebrate, and most invertebrate, animals. Some primitive animals such as jellyfish and starfish have a decentralized nervous system without a brain, while sponges lack any nervous system at all. In vertebrates, the brain is located in the head, protected by the skull and close to the primary sensory apparatus of vision, hearing, balance, taste, and smell.

Brains can be extremely complex. The human brain contains roughly 100 billion neurons, linked with up to 10,000 synaptic connections each. Each cubic millimeter of cerebral cortex contains roughly one billion synapses. These neurons communicate with one another by means of long protoplasmic fibers called axons, which carry trains of signal pulses called action potentials to distant parts of the brain or body and target them to specific recipient cells.

From a philosophical point of view, it might be said that the most important function of the brain is to serve as the physical structure underlying the mind. From a biological point of view, though, the most important function is to generate behaviors that promote the welfare of an animal. Brains control behavior either by activating muscles, or by causing secretion of chemicals such as hormones. Even single-celled organisms may be capable of extracting information from the environment and acting in response to it. Sponges, which lack a central nervous system, are capable of coordinated body contractions and even locomotion. In vertebrates, the spinal cord by itself contains neural circuitry capable of generating reflex responses as well as simple motor patterns such as swimming or walking. However, sophisticated control of behavior on the basis of complex sensory input requires the information-integrating capabilities of a centralized brain.

Despite rapid scientific progress, much about how brains work remains a mystery. The operations of individual neurons and synapses are now understood in considerable detail, but the way they cooperate in ensembles of thousands or millions has been very difficult to decipher. Methods of observation such as EEG recording and functional brain imaging tell us that brain operations are highly organized, but these methods do not have the resolution to reveal the activity of individual neurons. Thus, even the most fundamental principles of neural network computation may to a large extent remain for future investigators to discover.

 

[Veritas]

Dude, are you a person or a bot?

 

[Sphinx777]

Dude, are you a person or a bot?

Internet bots, also known as web robots, WWW robots or simply bots, are software applications that run automated tasks over the Internet. Typically, bots perform tasks that are both simple and structurally repetitive, at a much higher rate than would be possible for a human alone. The largest use of bots is in web spidering, in which an automated script fetches, analyzes and files information from web servers at many times the speed of a human. Each server can have a file called robots.txt, containing rules for the spidering of that server that the bot is supposed to obey.

In addition to their uses outlined above, bots may also be implemented where a response speed faster than that of humans is required (e.g., gaming bots and auction-site robots) or less commonly in situations where the emulation of human activity is required, for example chat bots.

These chatterbots may allow people to ask questions in plain English and then formulate a proper response. These bots can often handle many tasks, including reporting weather, zip-code information, sports scores, converting currency or other units, etc. Others are used for entertainment, such as SmarterChild on AOL Instant Messenger and MSN Messenger and Jabberwacky on Yahoo! Messenger.

An additional role of IRC bots may be to lurk in the background of a conversation channel, commenting on certain phrases uttered by the participants (based on pattern matching). This is sometimes used as a help service for new users, or for censorship of profanity.

AOL Instant Messenger has now introduced a feature that allows you to make a screen name into a bot. This new feature removes the rate limit on the screen name, however it is now limited in the amount of instant messages that can be sent and received.