Tag Archives: First Person

News

New paper: paralyzed man uses thoughts to control robotic arm

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This is from Science Daily. (H/T The Best Schools)

Excerpt:

Researchers at the University of Pittsburgh School of Medicine and UPMC describe in PLoS ONE how an electrode array sitting on top of the brain enabled a 30-year-old paralyzed man to control the movement of a character on a computer screen in three dimensions with just his thoughts. It also enabled him to move a robot arm to touch a friend’s hand for the first time in the seven years since he was injured in a motorcycle accident.

With brain-computer interface (BCI) technology, the thoughts of Tim Hemmes, who sustained a spinal cord injury that left him unable to move his body below the shoulders, were interpreted by computer algorithms and translated into intended movement of a computer cursor and, later, a robot arm, explained lead investigator Wei Wang, Ph.D., assistant professor, Department of Physical Medicine and Rehabilitation, Pitt School of Medicine.

“When Tim reached out to high-five me with the robotic arm, we knew this technology had the potential to help people who cannot move their own arms achieve greater independence,” said Dr. Wang, reflecting on a memorable scene from September 2011 that was re-told in stories around the world. “It’s very important that we continue this effort to fulfill the promise we saw that day.”

Six weeks before the implantation surgery, the team conducted functional magnetic resonance imaging (fMRI) of Mr. Hemmes’ brain while he watched videos of arm movement. They used that information to place a postage stamp-size electrocortigraphy (ECoG) grid of 28 recording electrodes on the surface of the brain region that fMRI showed controlled right arm and hand movement. Wires from the device were tunneled under the skin of his neck to emerge from his chest where they could be connected to computer cables as necessary.

For 12 days at his home and nine days in the research lab, Mr. Hemmes began the testing protocol by watching a virtual arm move, which triggered neural signals that were sensed by the electrodes. Distinct signal patterns for particular observed movements were used to guide the up and down motion of a ball on a computer screen. Soon after mastering movement of the ball in two dimensions, namely up/down and right/left, he was able to also move it in/out with accuracy on a 3-dimensional display.

“During the learning process, the computer helped Tim hit his target smoothly by restricting how far off course the ball could wander,” Dr. Wang said. “We gradually took off the ‘training wheels,’ as we called it, and he was soon doing the tasks by himself with 100 percent brain control.”

I think that this is relevant to the physicalism vs immaterial mind/soul debate. Here’s a person using mental effort to control matter.

Commentary

MUST-READ: Follow up post by Michael Egnor on the New Atheism

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Remember my last post about the responses of atheist PZ Meyers to Michael Egnor’s eight questions for the New Atheists?

Well, some other “New Atheists” have responded and he decided to write a new post about one of the funniest ones.

The New Atheist in question answers the questions, but first he attacks Egnor for not allowing comments to the blog post, for being Roman Catholic, for being close-minded(?), and so on.

He then writes this:

The only “doctrine” inherent in “New Atheism” is a desire to observe a secular society and evidentialist arguments…Critical thinking is not conclusion and that’s where Egnor gets everything wrong.

In other words, he doesn’t have any answers to the questions!

Lest you think I am kidding, I will show his answers.

First, let’s review the questions:

  1. Why is there anything?
  2. What caused the Universe?
  3. Why is there regularity (Law) in nature?
  4. Of the Four Causes in nature proposed by Aristotle (material, formal, efficient, and final), which of them are real? Do final causes exist?
  5. Why do we have subjective experience, and not merely objective existence?
  6. Why is the human mind intentional, in the technical philosophical sense of aboutness, which is the referral to something besides itself?
  7. Does Moral Law exist in itself, or is it an artifact of nature (natural selection, etc.)
  8. Why is there evil?

And now his answers:

I don’t know. Let’s use the scientific method and critical thinking to continue to try to figure it out and let’s leave religious presuppositions out of policy decisions so we don’t create legal inequality between belivers [sic] and non-believers.

That’s it. He only gave one answer. To all eight questions! He gave the same answer to all eight questions. “I don’t know”. My guess about his “policy” comments is that he is basically concerned that a majority of morality-enabled voters might put legal brakes on his selfish pursuit of happiness. E.g. – by passing laws defending the unborn or laws defending traditional marriage or laws protecting religious liberty, etc.

Anyway, if you want something funny to read, then you should definitely read this post. The funniest stuff is Egnor’s response to the New Atheist, and you have to click through to read that. I guarantee you will fall off your chair laughing. You readers think *I* am snarky and mean. You think *I* make fun of atheists for not being able to ground morality. Ha! Wait till you read Egnor. I’m *nice*.

We all need to get used to dealing with atheists this way. We need to bring their scientific, philosophical and moral deficiencies to the surface for all to see. And we must use questions to do it.

Atheists oppose science and evidence

Theists support science and evidence

Commentary

Michael Egnor asks atheist P.Z. Meyers about the New Atheism worldview

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First, I should say that if you don’t know who P.Z. Myers is, you should know that he is an incredibly arrogant and vulgar internet atheist. He is very popular on the Internet with atheists because of his foaming-at-the-mouth, howling-at-the-moon ranting against intelligent design, theism in general and Christianity in particular.

Anyway, Myers is interviewed by Michael Egnor, a neurosurgeon and professor of pediatrics, who appeared in the movie “Expelled”. He asks P.Z. Myers questions about the New Atheism, then comments on Myers’ answers. (H/T ECM)

Here are the questions:

  1. Why is there anything?
  2. What caused the Universe?
  3. Why is there regularity (Law) in nature?
  4. Of the Four Causes in nature proposed by Aristotle (material, formal, efficient, and final), which of them are real? Do final causes exist?
  5. Why do we have subjective experience, and not merely objective existence?
  6. Why is the human mind intentional, in the technical philosophical sense of aboutness, which is the referral to something besides itself?
  7. Does Moral Law exist in itself, or is it an artifact of nature (natural selection, etc.)
  8. Why is there evil?

Myers’ answers are short and betray an incredible ignorance of the philosophical issues.

Here’s TWO of the eight answers and Egnor’s responses:

1) Why is there anything?

Myers: 
 Nothing is unstable.

Egnor: “Nothing” is not unstable. Nothing is not stable. Nothing is not metastable, nor hypostable, nor quasi-stable. Nothing is nothing. Nothing has no properties. “Nothing is unstable” is gibberish. Hence its central place in New Atheist atheology. If by “nothing” Myers is referring to the emergence of matter by quantum fluctuations (today’s trendy New Atheist evasion of theism), I observe that a quantum field isn’t “nothing.” A quantum field is very much something, in need of explanation. A quantum field gives rise to particles, not to itself. You have to explain the existence of the quantum field. Nice try. The question “why is there anything” is fundamental. The classical theist answer is that God’s essence is His existence, and He is the ground of existence. Note that God (as understood classically) does not need explanation or cause. The uncaused nature of God is demonstrated, not stipulated, by classical theism (see Aristotle’s Prime Mover argument and Aquinas’ First, Second, and Third Ways). Furthermore, the Prime Mover argument (Aquinas’ First Way) demonstrates that God’s existence is necessary even if the universe was eternal and had no beginning; His existence is necessary for existence of the universe at every moment. New Atheists don’t understand the question, don’t understand the terminology, and don’t understand their own rudimentary logical contradictions. New Atheist ignorance doesn’t mean that classical theism is true; it merely means that New Atheism has nothing to say. But I sort of suspected that.

2) What caused the Universe?

Myers: Nothing caused it.

Egnor: “Nothing” doesn’t cause anything. Nothing is absence of existence. Nothing has no agency. “Nothing caused…” is an oxymoron.

Let’s look at coherent answers to the question. The basic cosmological argument is this: 1) Whatever begins to exist is caused by another 2) the Universe began to exist 3) The Universe was caused by another. Modus ponens. Something that begins to exist cannot cause itself, because that would mean that it was prior to itself, which is nonsense.

The universe began to exist 13.75 ± 0.17 billion years ago. So another caused it. The universe is nature, so its cause is super-nature-al (sometimes the hyphens and the last ‘e’ are omitted). The supernatural cause of the universe is an insight provided by science and reason. Denial of a supernatural cause of the universe is denial of science (Big Bang Cosmology) and reason (elementary logic).

Let’s consider the alternatives:

1) Perhaps the universe was caused by a quantum fluctuation, a black hole, fecundity of a multiverse, ad nauseum (vide supra). But then the causation problem just shifts to the quantum field or the black hole or the multiverse. What caused the quantum field, or the maternal black hole, or the whole damn multiverse itself? You can’t change the subject.

2) Perhaps the word “cause” doesn’t apply to the universe at all. Perhaps the universe is a Kantian noumenon, not a phenomenon, and it’s not subject to the rules that govern the things we perceive (this was Kant’s gambit against the Cosmological Argument).

But if this is true, then the principle of sufficient reason is invalid. The principle of sufficient reason, for you New Atheists, is the principle that anything that happens does so for a reason. It’s the proposition that everything that begins to exist has a cause. If you deny the principle of sufficient reason to elide the inference to theism, then there is nothing wrong with asserting that lesser things in the universe (e.g. rabbits, hominids) popped into existence for no reason as well. If the whole shebang doesn’t need reason, no thing needs a reason. You can invoke “it’s uncaused” anytime. If you can shuck the principle of sufficient reason for the existence of the universe, you sure as hell can shuck the principle of sufficient reason for origin of species. POP. The universe exists. POP. Primordial prokaryotes exist. No need for OOL research. POP. Trilobites exist. No need for “natural selection” when you’ve got “uncaused existence.” POP. Whales exist. POP. Man exists. New Atheist creationism, with no need for God. No need for any explanations. Stuff just POPs into existence. POP POP POP. No need for evolutionary biologists.

If the universe doesn’t need a cause, no part of it needs a cause. Denial of the principle of sufficient reason is denial of logic, science, and history, all of it. Any surprise that New Atheists invoke it? They’d rather invoke nonsense than admit the obvious: there is a Cause.

I like to blog on the scientific research and the scientific evidence, but I still think that it is important to understand philosophical concepts like intentionality, final causes and the ontological foundations of morality. That’s table stakes for a comprehensive worldview. Science only provides you with experimental confirmation for premises in logically valid arguments. You can’t prove anything without an argument. And that requires at least some knowledge of logic and analytical philosophy.

You might also like to read the survey I gave some of the atheists I know and their horrible answers that show what atheists really think about truth and morality.

Atheists oppose science and evidence

Theists support science and evidence