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Teaching of Psychology

July 15th, 2008

Tom Stafford, a member of the Adaptive Behaviour Research Group in the Department of Psychology at University of Sheffield, recently presented the keynote speech at the annual conference of the Association for the Teaching of Psychology at Lincoln in the UK. He talked a little bit about the priming that can occur when you load up my backmasking site. He was kind to present the topic using this slide.

Thanks Tom… you made my day.

Research Digest wrote up an interesting summary of Tom’s keynote talk.

Milgram’s Experiment on Obedience

July 4th, 2008

Stanley Milgram’s famously unethical but ever so interesting experiment on obedience via Archive.org:

The Milgram experiment was a seminal series of social psychology experiments conducted by Yale University psychologist Stanley Milgram, which measured the willingness of study participants to obey an authority figure who instructed them to perform acts that conflicted with their personal conscience. Milgram first described his research in 1963 in an article published in the Journal of Abnormal and Social Psychology, and later discussed his findings in greater depth in his 1974 book, Obedience to Authority: An Experimental View.

The experiments began in July 1961, three months after the start of the trial of Nazi war criminal Adolf Eichmann in Jerusalem. Milgram devised the experiments to answer this question: “Could it be that Eichmann and his million accomplices in the Holocaust were just following orders? Could we call them all accomplices?”

I didn’t have time to watch the whole thing, but apparently magician / hypnotist Derren Brown reproduced Milgram’s obedience experiment (watch on YouTube). I’m confused as to how he got around the ethical violations intrinsic to proceeding with such an experiment in this day and age—am I kidding myself or are they all just actors?

Amazing Audio Illusion

June 26th, 2008

Play this audio clip again after it finishes and hear it continue to “creep up”.

See Wikipedia’s entry on Shepard Tone for the full scoop.

A Shepard tone, named after Roger Shepard, is a sound consisting of a superposition of sine waves separated by octaves. When played with the base pitch of the tone moving upwards or downwards, it is referred to as the Shepard scale. This creates the auditory illusion of a tone that continually ascends or descends in pitch, yet which ultimately seems to get no higher or lower.

Psychological Card Trick

June 21st, 2008

Those of you that enjoyed the colour changing card trick, may also enjoy this psychological card trick.

Hit play or watch psychological card trick at YouTube.

The Amazing Colour Changing Card Trick

May 30th, 2008

As a former magician myself, I don’t believe in telling how the trick is done, but in this particular case the spoiler reveals not only how it’s done, but what the trick actually entails.

Watch carefully.

Hit play or watch colour changing card trick at Youtube.

The Stroop Effect

April 15th, 2008

The Stroop Effect, named after J. Ridley Stroop who published the effect in 1935, is a demonstration of interference in the reaction time of a task. For example, when a word signifying a colour such as “red” is printed in blue a reader’s reaction time processing the word’s colour, leads to slower test reaction times and an increase in mistakes.

Try out one of my favourite demonstrations of this effect by saying the colours of the words below:

(For example if the word “blue” is printed in green, you would say the word green)

   red     blue    orange    yellow    purple    green    blue    yellow    red    blue    orange    purple    yellow    green    blue    red    green    orange    purple
   yellow    orange    red    green    blue    green    red    green    blue    yellow    orange    purple    green    blue    yellow    red    orange    purple    green

If naming the first group of colours is easier and quicker than the second, then your performance exhibits the Stroop effect.

The Stroop effect illustrates important principles about how the brain works, particularly for mental tasks involving attention, automatic processing, and response selection. It also can be used to examine the subtle effects of adverse conditions on the brain, such as lack of sleep, fatigue, or the effects of high altitudes.

The coloured word test above is only one kind kind of automatic processing that can be studied. Harvard University continually collects data with their Implicit Association Tests, many of which have fascinating social and political implications.

Test Your Awareness

April 13th, 2008

How many passes does the team in white make? An experiment in awareness.

Backmasking on The Hour

March 30th, 2008

Back in February 2006, CBC’s The Hour made a road trip through Alberta. They interviewed me for a short segment about backmasking in which they featured my website.

For your viewing pleasure, here is the clip. (Just bear with me getting through the first 15 seconds).

The producer that arranged the interview gave me a DVD with this clip. She said she didn’t have any problem with me putting it on YouTube and now that the CBC regularly puts their content out on the web, I’m even more confident that this should be ok, copyright-wise. Nevertheless, please leave a comment if you notice the video taken offline.

The Truth About Subliminal Influence

August 4th, 2007

Hungry? Eat Popcorn

The interesting thing about the claim of a subliminal influence contained within popular music when played backwards is that the messages are very difficult (if not impossible) to discern unless you’ve been primed to hear them on a conscious level.

I’ve been receiving emails wanting to know how this apparent lack of influence ties in with research that demonstrates subliminal messages can coerce unwary buyers into making purchases they would not otherwise have considered?

A short story is in order, (stop me if you’ve heard this one) Fort Lee, N.J., 1957. Unsuspecting film goers are enjoying “Picnic”, with William Holden and Kim Novak. In the projection room, an important marketing experiment is being staged. Researcher James Vicary has installed a tachistoscope, a machine that can inject subliminal images of tiny fractions of a second—far below that of a person’s conscious threshold. Every five seconds and for a duration of just 1/3000th of a second, Vicary alternated two messages. One read, “Drink Coca-cola” and the other, “Hungry? Eat Popcorn”.

Vicary’s results were spectacular! Coca-cola sales jumped 18.1%; popcorn sales 57.8%. Vicary dubbed this “subliminal advertising”, the practise of manipulating consumers to make purchases they might not normally make.

And if you believe that, I’ve got a pet rock I’d like to sell you.

The great popcorn experiment was a fraud.

Advertisers and regulators doubted Vicary’s story from the beginning, so another researcher, Dr. Henry Link, duplicated Vicary’s experiment and found no evidence that people reacted to the messages. In a 1962 interview, Mr. Vicary admitted the data was all fabricated to gain attention for his business. Some critics have since expressed doubt that he ever conducted the experiments at all.

However, the legend lives on. To this day a great many people still believe Vicary’s claims and will apparently never be convinced otherwise.

As numerous studies over the last few decades have demonstrated, subliminal advertising doesn’t work; in fact, it never worked, and the whole premise was based on a lie from the very beginning.

It is possible to prime the unconscious.

According to a recent experiment, psychologists at Yale were able to alter people’s judgments by simply priming them with either hot or cold coffee.

The study participants, college students, had no idea that their social instincts were being deliberately manipulated. On the way to the laboratory, they had bumped into a laboratory assistant, who was holding textbooks, a clipboard, papers and a cup of hot or iced coffee—and asked for a hand with the cup.

That was all it took: The students who held a cup of iced coffee rated a hypothetical person they later read about as being much colder, less social and more selfish than did their fellow students, who had momentarily held a cup of hot java.

As improbable as it may seem, findings like this one have continued to pour forth in psychological research in recent years.

New studies have found that people tidy up more thoroughly when there’s a faint tang of cleaning liquid in the air; they become more competitive if there’s a briefcase in sight, or more cooperative if they glimpse words like “dependable” and “support”—all without being aware of the change, or what prompted it.

The article goes on to remind readers that, “studies of products promising subliminal improvement, for things like memory and self-esteem, found no effect”.

If you’re interested in this sort of thing, I recommend reading Malcolm Gladwell’s book, Blink—here’s a very short audio snippet from chapter 2 (650k mp3).

Malcolm Gladwell vs. Stephen Colbert

May 5th, 2007

My favorite author goes head to head with Stephen Colbert.

Hit play or view it on Comedy Central’s site.

Sublimal Sound to “Cure” Video Game Addiction

March 20th, 2007

A Korean venture start-up claims to have developed an audio sequence that can communicate with addicted game players below the conscious level. The company wants game manufacturers to play the embedded subliminal messages when a young user has kept playing after a preset period of time.

From The Korea Times article:

“We incorporated messages into an acoustic sound wave telling gamers to stop playing. The messages are told 10,000 to 20,000 times per second,” Xtive President Yun Yun-hae said.

“Game users can’t recognize the sounds. But their subconscious is aware of them and the chances are high they will quit playing,” the 35-year-old Yun said. “Tests tell us the sounds work.”

Any scholarly evidence I’ve ever read up on has indicated that subliminal messages don’t work, but apparently marketing such messages is big business.

Xtive applied for a domestic patent for the phonogram and is looking to take advantage of the technology in other sectors.

“We can easily change the messages. In this sense, the potential for this technology is exponential,” Yun said.

Artist Eye Tracking

March 15th, 2007

Related to the post about eye-tracking for usability, you might be interested in eye tracking research that shows artists look at things differently.

Richard Dawkins’ Nice Guys Finish First

March 1st, 2007

When I was enrolled in University, one of the classes I wanted to take was Philosophy of Game Theory. Unfortunately, disillusioned by my lack of interest after taking the introductory class (a prerequisite) I decided that Philosophy wasn’t for me after all.

Game Theory (Wikipedia) however, is still a very fascinating topic. Couple that with an interest in biology, sociology, and economics and the short documentary, “Nice Guys Finish First“, by Richard Dawkins becomes a tremendously interesting look at how selfish and altruistic behavior can be the greatest benefit or harm to the individual—and consequently also to the group.

Hit Play or Watch at Google Video.

Ze Meets Ray

February 28th, 2007

Ze Frank finally met with Ray, the composer and singer of the internet meme, “Kick Somebody’s Ass”. This has got to be one of Ze’s most memorable shows to date.

McDonald’s Subliminal Advertising

January 24th, 2007

With a wide spread of PVR adoption comes a new form of “subliminal advertising”. Ads that last only 1 frame (that’s 1/24th of a second) probably aren’t able to influence viewers even subliminally, however, the following McDonald’s ad works because it is noticeable enough that someone watching on TV might pause, rewind, see the ad and then talk about it or better yet, post it on YouTube and create an instant viral ad.

Click play or watch at YouTube.

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