Tag Archives: Brain

News

What’s more complex? Your brain or the Internet?

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Check it out… a new peer-reviewed paper discussed at CNET News. (H/T Darwin’s God via ECM)

Excerpt:

The human brain is truly awesome.

A typical, healthy one houses some 200 billion nerve cells, which are connected to one another via hundreds of trillions of synapses. Each synapse functions like a microprocessor, and tens of thousands of them can connect a single neuron to other nerve cells. In the cerebral cortex alone, there are roughly 125 trillion synapses, which is about how many stars fill 1,500 Milky Way galaxies.

These synapses are, of course, so tiny (less than a thousandth of a millimeter in diameter) that humans haven’t been able to see with great clarity what exactly they do and how, beyond knowing that their numbers vary over time. That is until now.

Researchers at the Stanford University School of Medicine have spent the past few years engineering a new imaging model, which they call array tomography, in conjunction with novel computational software, to stitch together image slices into a three-dimensional image that can be rotated, penetrated and navigated. Their work appears in the journal Neuron this week.

To test their model, the team took tissue samples from a mouse whose brain had been bioengineered to make larger neurons in the cerebral cortex express a fluorescent protein (found in jellyfish), making them glow yellow-green. Because of this glow, the researchers were able to see synapses against the background of neurons.

They found that the brain’s complexity is beyond anything they’d imagined, almost to the point of being beyond belief, says Stephen Smith, a professor of molecular and cellular physiology and senior author of the paper describing the study:

One synapse, by itself, is more like a microprocessor–with both memory-storage and information-processing elements–than a mere on/off switch. In fact, one synapse may contain on the order of 1,000 molecular-scale switches. A single human brain has more switches than all the computers and routers and Internet connections on Earth.

Smith adds that this gives us a glimpse into brain tissue at a level of detail never before attained: “The entire anatomical context of the synapses is preserved. You know right where each one is, and what kind it is.”

I wonder why we consider evolution to be a “done deal” when we don’t have testable Darwinian accounts for how things like this can evolve. They are making the claim that it evolved. I am asking for some evidence.

Commentary

Does reading science fiction predispose people to atheism?

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This is an interesting idea that ECM thought of and shared with me in our conversations. I went around the office and tested some of the engineers who were atheists and found that ECM was 100% correct. But let me explain ECM’s thesis in brief.

ECM thinks that science fiction (made-up fantasy stuff) that people read when they are younger causes them to believe that the religion is anti-science and that the progress of science always disproves religion. The stories they read colors their views of science and religion for life, before they ever get to assessing evidence. And that’s why when we produce evidence for them in debates, they will believe in speculations rather than go where the evidence leads. So they believe that maybe unobservable aliens caused the origin of life, and that maybe the untestable multiverse theory explains the fine-tuning of cosmological constants, and that maybe this universe has existed eternally despite the well-supported Big Bang theory which shows that the universe began to exist. Maybe, maybe, maybe. They seem to think that untestable speculations are “good enough” to refute observational evidence – and maybe it’s because of all the science fiction that they’ve read.

Here’s an article in the American Spectator that talks a bit about it. (H/T Denyse O’Leary via ECM)

Excerpt:

A magazine I frequently write for (not this one) recently published a review of a book of essays advocating atheism. The reviewer pointed out with some enthusiasm that a large number of the contributors were science-fiction writers.

This left me somewhat nonplussed. I publish a good deal of science fiction myself, I have also read quite a lot of it, and I am quite unable to see why writing it should be held to particularly qualify anyone to answer the question of whether or not there is a God.

[…]Historically the contribution of the Catholic Church to astronomy was massive and unequalled. Without it astronomy might very well never have grown out of astrology at all. Cathedrals in Bologna, Florence, Paris, Rome and elsewhere were designed in the 17th and 18th centuries to function as solar observatories. Kepler was assisted by a number of Jesuit astronomers, including Father Paul Guldin and Father Zucchi, and by Giovanni Cassini, who had studied under Jesuits. Cassini and Jesuit colleagues were eventually able to confirm Kepler’s theory on the Earth having an elliptical orbit. J.L. Heilbron of the University of California has written:

The Roman Catholic Church gave more financial aid and social support to the study of astronomy over six centuries, from the recovery of ancient learning during the late Middle Ages into the Enlightenment, than any other, and, probably, all other, institutions.

Science fiction is, by definition, fiction, that is, it deals with things which are the product of a writer’s imagination and are not literally true. In any event, what is and what is not science fiction is hard to define. Simply to say it is about science is meaningless, and while some science-fiction writers are qualified scientists, many are not. Probably even fewer are trained theologians.

Science fiction makes the mysteries of the universe seem easy to an atheist. Everything can be easily explained with fictional future discoveries. Their speculations about aliens, global warming and eternal universes are believed without evidence because atheists want and need to believe in those speculations. In the world of science fiction, the fictional characters can be “moral” and “intelligent” without having to bring God or the evidence for God into the picture. That’s very attractive to an atheist who wants the feeling of being intelligent and moral without having to weight actual scientific evidence or ground their moral values and behavior rationally. The science fiction myths are what atheists want to believe. It’s a placebo at the worldview level. They don’t want cosmic microwave background radiation – they want warp drives. They don’t want chastity – they want holodecks.

Why do people become atheists?

My theory is mainly that atheists adopt atheism because they want pleasure, especially sexual pleasure, without any restraints or guilt. They want to believe that sex without commitment has no consequences, especially a consequence like God judging them for it. Another contributing factor may be that atheists want to be thought of as smart by “the right people” – to sort of blindly accept whatever the “smart people” accept without really searching out reasons or dissenting views. They do this so that they are able to look down at some other group of people so they can feel better about themselves and be part of the right group – without actually having to weigh the evidence on both sides. And lastly, atheism may also be caused by weak fathers or abandoning fathers. But I think that ECM’s science fiction theory has merit, as well. I think that all four of these factors help to explain why atheists believe in a discredited worldview in the teeth of scientific progress.

I wonder if my readers would take some time out to investigate whether their atheist friends have been influenced by reading science fiction and whether they still read it. We really need to get to the bottom of why atheists are so hostile to science, morality, and reason. If we can also find out why they are so desperate to take on the views of people around them because of peer pressure, without caring to hear both sides of questions (e.g. – global warming), that would also be interesting.

Science fiction

Not science fiction

Polemics

Is belief in God explained by chemicals in the brain?

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Greg Koukl of Stand to Reason explains. (H/T Melissa)

As Greg often says, before you can show WHY a belief is false, you know to show THAT a belief is false.

For those of us who are stuck behind a firewall, you can read this article by Paul Copan instead.

Here’s the problem:

Evolutionary biologist Richard Dawkins suggests that our “extraordinary predisposition” to “insist on believing in God” is that we, like computers, tend to do what we’re told. Young minds are susceptible to “infection” and mental “viruses” especially when they latch on to the bad or worthless religious ideas of charismatic preachers and other adults.1 Anthropologist Pascal Boyer believes that the latest “scientific” developments reveal that our “central metaphysical urge”—an “irredeemable human propensity toward superstition, myth and faith, or a special emotion that only religion provides”2 stands at the root of all religion. Author Matthew Alper considers humans to be religious animals whose brains are hard-wired for “God,” though no God exists, and maintains that the “spiritual” is really the “scientific.”3

And here’s the solution:

To say God doesn’t exist because people believe for inferior reasons or motivations is to commit the genetic fallacy—to say that a view is true/false based on its origin. God’s existence, however, is logically independent of how people come to believe in Him.

Consider the strong reasons for God’s existence distinct from human hard-wiring and psychology. The existence of valuable, morally responsible, self-aware, reasoning, living human beings who inhabit a finely tuned universe that came to exist a finite time ago is not plausibly explained naturalistically—namely, as the result of disparate valueless, mindless, lifeless physical processes in a universe that came into existence uncaused out of nothing. The better unifying explanation is a supremely valuable, supremely aware, reasoning, truthful, powerful, intelligent, beautiful Being. Such a context robustly explains—and unifies—a wide range of factors where naturalism fails. If God exists and leaves clues of his existence, then CSR’s reductionistic claims about theistic belief lose their force.

There is a LOT more in the Paul Copan essay on cognitive science of religion (CSR).

And Michael Murray published a book with Oxford University Press on his solution to this problem.

Excerpt:

Critics argue that belief in God is unwarranted because it arises from evolved, hard-wired cognitive mechanism. But, if these psychologists are right, so are many (if not all) of our other beliefs.

“Surely the critic doesn’t want to say that any belief that is the output of our mental tools—our cognitive tools—is unwarranted,” Murray notes, because “we can’t reasonably think that all of our beliefs are unreliable.” Further,

most of these critics think that our cognitive tools usually get things just right. To see this, just substitute the following words (or phrases) into the argument [above] and see if the critic would still find the underlying reasoning acceptable: human minds, rocks, rainbow, or science’s ability to discover the truth.

In other words, “Why do they think it’s fair to single out belief in the existence of God as the one thing that turns out to be unreliable or unwarranted?”

Hence, Murray notes, this sweeping argument is self-defeating. For if all brain-dependent beliefs are unwarranted, then the idea that “belief in God is unwarranted” is itself unwarranted.

Dawkins and many of his peers think this argument shows belief in God to be “merely” a “by-product” of human evolutionary development. Theistic intellectuals like Murray conclude that “God instead, designed us so that belief in him is easy and natural. The human mind is naturally constructed in such a way that we have a tendency to form beliefs in God concepts, and even of a somewhat specific sort.”

So if you believe Koukl, the argument commits the genetic fallacy. But even if you allow it to go through, like Michael Murray does, it’s self-refuting. (You can read more about Murray’s views in “Contending With Christianity’s Critics” and “Passionate Conviction” – and don’t worry about chastising him about his moderate views of intelligent design, I already wrote to him and beat him up about that, and he said it was just a bias / preference he had against intervening acts of fine-tuning subsequent to the moment of creation).

You may also be interested on the original “wish-fulfillment” objection, which Greg Koukl demolishes here. And another Greg Koukl article on whether you are your physical brain, or whether you are your non-physical mind and you have a brain.