Tag Archives: Dualism

Jeffrey Schwartz and the effectiveness of “mental effort”

Here’s a summary of the research of UCLA professor Jeffrey Schwartz which appeared in First Things.

Excerpt:

Schwartz provides a nonmaterialist interpretation of neuroscience and argues that this interpretation is more compelling than the standard materialist interpretation. He arrived at this position as a psychiatrist specializing in the treatment of obsessive-compulsive disorder (OCD). OCD sufferers recognize obsessive-compulsive thoughts and urges as separate from their intrinsic selves. For instance, after a few washings, the compulsive hand-washer realizes that his hands are clean and yet feels driven to keep washing them. It was reflection on this difference between the obvious truth (the hands are clean) and the irrational doubts (they might still be dirty) that prompted Schwartz to reassess the philosophical underpinnings of neuroscience.

From brain scans, Schwartz found that certain regions in the brain of OCD patients (the caudate nucleus in particular) exhibited abnormal patterns of activity. By itself this finding is consistent with a materialist view of mind (if, as materialism requires, the brain enables the mind, then abnormal patterns of brain activity are likely to be correlated with dysfunctional mental states). Nonetheless, having found abnormal patterns of brain activity, Schwartz then had OCD patients engage in intensive mental effort through what he called relabeling, reattributing, refocusing, and revaluing (the 4 Rs). In the case of compulsive hand-washing, this involved a patient acknowledging that his hands were in fact clean (relabeling); attributing anxieties and doubts about his hands being dirty to a misfunctioning brain (reattributing); directing his thoughts and actions away from handwashing and toward productive ends (refocusing); and, lastly, understanding at a deep level the senselessness of OCD messages (revaluing).

Schwartz documents not only that patients who undertook this therapy experienced considerable relief from OCD symptoms, but also that their brain scans indicated a lasting realignment of brain-activity patterns. Thus, without any intervention directly affecting their brains, OCD patients were able to reorganize their brains by intentionally modifying their thoughts and behaviors. The important point for Schwartz here is not simply that modified thoughts and behaviors permanently altered patterns of brain activity, but that such modifications resulted from, as he calls it, “mindful attention”-conscious and purposive thoughts or actions in which the agent adopts the stance of a detached observer.

So mind-brain interaction is not a one-way street. Everyone knows that you can alter your consciousness, beliefs, moods, sensations, etc. by changing your brain. But it turns out that you can also will to focus your thoughts on certain things in order to change your brain chemistry. So the causation is not just bottom-up, but top-down. This research falsifies materialism and argues for substance dualism.

Is the concept of moral responsibility compatible with physicalism / materialism?

I saw that Brian Auten of Apologetics 315 linked to this post by J. Warner Wallace.

Excerpt:

When examining the causes for an event (such as a death) we can separate them into two categories: event causation and agent causation (prior physical events cause things to happen and free agents cause things to happen). It’s important to recognize that free agents alone have the freedom to act or respond without a prior physical causal event. Physical objects, like dominoes, cannot cause themselves to fall over; they require a prior event to cause them to fall. But you and I have the ability to cause the first domino to fall as a simple matter of choice (we don’t need a prior event to cause this action). You can’t blame a car for running over a victim; the car is simply a physical object subject to a series of physical processes, none of which can be held morally culpable. But we can blame thedriver of the car for driving the car over the victim. The driver is a free agent, and we recognize that his choices are just that: free choices. The driver is not like the car. His choice is not simply the result of a series of purely physical processes, like dominoes falling. He had the freedom to choose otherwise, and this is why we seek to arrest and prosecute him.

Our recognition of the moral culpability of the driver (rather than the car) is an admission that materialism (physicalism) fails to explain who we are as humans. Consider the following argument:

No Physical System is a Free Agent
Physical systems are either “determined” (one event necessarily following the other) or “random”

Therefore No Physical System Has Moral Responsibility
Moral responsibility requires moral freedom of choice

Human Beings DO Have Moral Responsibility
We recognize that each of us has the responsibility and choice to act morally, and indeed, we seek to hold each other legally accountable for each other’s free-will choices

Therefore, Human Beings Are NOT Simply Physical Systems
Our recognition of moral responsibility and our efforts to hold each other accountable are irrational and unwarranted if humans are merely physical systems

If we, as humans, are only physical systems (merely matter), we ought to stop trying to hold each other accountable for misbehavior. In fact, there can be no misbehavior if we are only physical brains and bodies; there can only be behavior. Our actions have no moral content at all unless we truly have the freedom to choose and the ability to break the bondage of physical event causation.

I finally learned what the “Twinkie defense” was by reading that post. It’s worth it for that reason alone.

This quote by JWW reminded me of a famous chapter in Theodore Dalrymple’s famous book “Life at the Bottom”, in which he explains the worldview of the lower classes in Britain. The chapter is called “The Knife Went In“, and it shows how people in the underclass describe their crimes in a way that completely minimizes their own free choices and their own responsibilities.

Take a look:

It is a mistake to suppose that all men, or at least all Englishmen, want to be free. On the contrary, if freedom entails responsibility, many of them want none of it. They would happily exchange their liberty for a modest (if illusory) security. Even those who claim to cherish their freedom are rather less enthusiastic about taking the consequences of their actions. The aim of untold millions is to be free to do exactly as they choose and for someone else to pay when things go wrong.

In the past few decades, a peculiar and distinctive psychology has emerged in England. Gone are the civility, sturdy independence, and admirable stoicism that carried the English through the war years. It has been replaced by a constant whine of excuses, complaint, and special pleading. The collapse of the British character has been as swift and complete as the collapse of British power.

Listening as I do every day to the accounts people give of their lives, I am struck by the very small part in them which they ascribe to their own efforts, choices, and actions. Implicitly, they disagree with Bacon’s famous dictum that “chiefly the mould of a man’s fortune is in his own hands.” Instead, they experience themselves as putty in the hands of fate.

It is instructive to listen to the language they use to describe their lives. The language of prisoners in particular teaches much about the dishonest fatalism with which people seek to explain themselves to others, especially when those others are in a position to help them in some way. As a doctor who sees patients in a prison once or twice a week, I am fascinated by prisoners’ use of the passive mood and other modes of speech that are supposed to indicate their helplessness. They describe themselves as the marionettes of happenstance.

Not long ago, a murderer entered my room in the prison shortly after his arrest to seek a prescription for the methadone to which he was addicted. I told him that I would prescribe a reducing dose, and that within a relatively short time my prescription would cease. I would not prescribe a maintenance dose for a man with a life sentence.

“Yes,” he said, “it’s just my luck to be here on this charge.”

Luck? He had already served a dozen prison sentences, many of them for violence, and on the night in question had carried a knife with him, which he must have known from experience that he was inclined to use. But it was the victim of the stabbing who was the real author of the killer’s action: if he hadn’t been there, he wouldn’t have been stabbed.

My murderer was by no means alone in explaining his deed as due to circumstances beyond his control. As it happens, there are three stabbers (two of them unto death) at present in the prison who used precisely the same expression when describing to me what happened. “The knife went in,” they said when pressed to recover their allegedly lost memories of the deed.

The knife went in—unguided by human hand, apparently. That the long-hated victims were sought out, and the knives carried to the scene of the crimes, was as nothing compared with the willpower possessed by the inanimate knives themselves, which determined the unfortunate outcome.

I wonder how much the secularism and atheism of the Britain academics has now seeped down to the lower classes and caused them to view themselves as lumps of meat or animals, rather than responsible free agents. Britain is the country of Charles Darwin and the idea of unguided Darwinian evolution. If you believe that you are an animal who evolved by accident in an accidental universe, then you don’t believe in free will, moral choices or moral obligations. The funniest thing in the world to me is how atheists go about their lives helping themselves to moral language that is not grounded by their worldview. Like parrots who have been trained to talk about the stock market. There is no realm of objective moral values and duties on atheism, so why are they using moral language and making moral judgments? On their view right and wrong are just social customs and conventions that vary by time and place, and human actions are biologically determined anyway. There are no choices. There is no responsibility.

You can read the whole Dalrymple book for free online, and I’ve linked to all the chapters in this one post.

New paper: paralyzed man uses thoughts to control robotic arm

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.