Happy Thanksgiving everyone!

I hope everyone who celebrates this really nice holiday has the opportunity to spend the day with family and friends.

This article provides some of the facts and debunks some myths about the origins and traditions of this holiday.

I have been disturbed by the creeping commercialism that is threatening to overtake this holiday. In order to lure customers to come to their stores first, they are scheduling sales that begin at midnight. What this means is that their employees are forced to work on Thanksgiving day, getting ready for the hordes of people camped out in front eager to get their hands on the few loss leaders that the stores put out. I hope we do not have a repetition of 2008:

A Wal-Mart worker died early Friday after an “out-of-control” mob of frenzied shoppers smashed through the Long Island store’s front doors and trampled him, police said.

The Black Friday stampede plunged the Valley Stream outlet into chaos, knocking several employees to the ground and sending others scurrying atop vending machines to avoid the horde.

On a passing note, this week my bank sent me a ‘Happy Thanksgiving’ card from its vice president. Do these big corporations think that people are pleased to receive formal greetings churned out by a computer? This not only seems like an absurd waste of money, I fear it might be the start of a new marketing trend to inflict the same cards-and-gifts consumer binge that afflicts Christmas.

Left-liberal smearing of John Tyner

Glenn Greenwald defends John Tyner against the attempt by The Nation to smear him for his protest against the TSA’s porno scanners and groping methods.

What is it with some people that they cannot form a united front with others on civil liberties issues unless the people protesting as well as who are being protested against fit with their broader agenda?

I myself do not care one whit if the protests against methods of the TSA are being fuelled and funded by right-wing ideologues and are meant to embarrass Obama. What has that got to do with whether the methods being used are good or not?

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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