On free will-12: How about quick decisions?

(For previous posts in this series, see here.)

The 2008 research findings of Soon et. al., gave the surprising result that when we are allowed time to make decisions, our subconscious neural networks make the decisions up to ten seconds before we are consciously aware of it.

Of course, there are many situations in which we act without seeming to make any conscious decisions at all. If an object is suddenly thrown at us, we may duck, dodge, deflect, hit, or catch it, the ‘choice’ seemingly being made in much less than a second. In such cases, the action seems involuntary and we assign it to instinct, which is just another name for the unconscious neural activity of our brains. The instinct to duck when an object is directed at our head or to withdraw our hands from a hot object is due to the neural system having developed shortcuts because of its obvious survival value and has been selected for over a long time in our evolutionary history. The part of the brain that codes instincts must necessarily act very quickly to give commands to the motor brain in response to stimuli from the environment. Certain stimuli trigger a stimulus-action connection that bypasses those sections of the brain that indulge in time-consuming activities such as processing information and making judgments.
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Spam insults

Recently, I have been receiving highly critical spam comments. Here is one typical example:

What a waste of time. You’re [sic] poor english [sic] made this article hard to read. Learn to write.

I have to admit I am puzzled by the psychology of this. One form that spam comments take is to give an effusive but generic compliment (“Your blog is great!”), presumably to flatter me so that I won’t delete it. It never works but I can understand the strategy.

But I am totally baffled by what the spammer hopes to achieve with an insult.

On free will-11: Recent fMRI studies of the brain

(For previous posts in this series, see here.)

In a recent paper (Unconscious determinants of free decisions in the human brain, Chun Siong Soon, Marcel Brass, Hans-Jochen Heinze, & John-Dylan Haynes, Nature Neuroscience, vol. 11, no. 5, May 2008, 543-545), researchers used the more sophisticated modern technique of fMRI (functional magnetic resonance imaging) to measure brain activity. The paper is not available online without a subscription but you can read a news report on the results of their paper here.

This experiment was designed to meet two key concerns about the Libet studies: that the time interval between act and the precursor unconscious brain activity prior to act was too small to definitively rule out measurement errors, and that Libet’s team had not shown that the early brain activity was a predictor of a specific decision.

The fMRI studies find that our decisions as to what actions we will take originate in our unconscious neural activity and only later informs our conscious mind of it, thus providing strong evidence against the existence of free will. The paper describes what the researchers asked their test subjects to do while they were hooked up to fMRI measuring devices.
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Chalmers Johnson dead at age 79

One of the major thinkers on US foreign policy whose pre-9/11 book Blowback: The Costs and Consequences of American Empire made the concept of ‘blowback’ a key element in understanding why the US is in such a predicament, died on Saturday.

Steve Clemons reflects on his legacy. He says that Johnson started out as an establishment figure and strong supporter of the Vietnam war but later became on of the biggest and most influential critics of the drive towards creating and sustaining the American empire. As Clemons says, “Many of Johnson’s followers and Chal himself think that American democracy is lost, that the republic has been destroyed by an embrace of empire and that the American public is unaware and unconscious of the fix.”

On free will-10: Ethical and legal implications of free will as simply a veto power

(For previous posts in this series, see here.)

The idea suggested by Benjamin Libet that what we call free will is not the popularly assumed ability to decide all our seemingly deliberate (as opposed to instinctive) actions but consists of the more limited ability to either let the predetermined action be completed or to veto it may be unsatisfying to some but its implications are worth exploring in case it turns out to be true. What this model says is that I have no control over what I decide to do in any given situation but I do have control over whether that decision is actually carried out. In other words, I cannot control my thoughts and decisions but I can control (within a limited range) my actions.
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Torturing for Christ

Jerry Coyne has a post with photographs describing the devices used by the Catholic Church in Colombia to torture heretics into making confessions during the inquisition that lasted from 1610 to 1821. It is sickening what they did and the article is not for the squeamish.

But of course, all this was done in the service of a loving and merciful god, so it must be good, no?