The Null Device

Stage magician Teller explains some of the cognitive principles behind the magician's craft:

1. Exploit pattern recognition. I magically produce four silver dollars, one at a time, with the back of my hand toward you. Then I allow you to see the palm of my hand empty before a fifth coin appears. As Homo sapiens, you grasp the pattern, and take away the impression that I produced all five coins from a hand whose palm was empty.

2. Make the secret a lot more trouble than the trick seems worth. You will be fooled by a trick if it involves more time, money and practice than you (or any other sane onlooker) would be willing to invest. My partner, Penn, and I once produced 500 live cockroaches from a top hat on the desk of talk-show host David Letterman. To prepare this took weeks. We hired an entomologist who provided slow-moving, camera-friendly cockroaches (the kind from under your stove don’t hang around for close-ups) and taught us to pick the bugs up without screaming like preadolescent girls. Then we built a secret compartment out of foam-core (one of the few materials cockroaches can’t cling to) and worked out a devious routine for sneaking the compartment into the hat. More trouble than the trick was worth? To you, probably. But not to magicians.

3. It’s hard to think critically if you’re laughing. We often follow a secret move immediately with a joke. A viewer has only so much attention to give, and if he’s laughing, his mind is too busy with the joke to backtrack rationally.

¶ cognitive science deception magic psychology 0 Share

Today in weaponised sociolinguistics: the US intelligence research agency IARPA is running a programme to collect and catalogue metaphors used in different cultures, hopefully revealing how the Other thinks. This follows on from the work of cognitive linguist George Lakoff, who theorised that whoever controls the metaphors used in language can tilt the playing field extensively:

Conceptual metaphors have been big business over the last few years. During the last Bush administration, Lakoff – a Democrat – set up the Rockridge Institute, a foundation that sought to reclaim metaphor as a tool of political communication from the right. The Republicans, he argued, had successfully set the terms of the national conversation by the way they framed their metaphors, in talking about the danger of ‘surrendering’ to terrorism or to the ‘wave’ of ‘illegal immigrants’. Not every Democrat agreed with his diagnosis that the central problem with American politics was that it was governed by the frame of the family, that conservatives were proponents of ‘authoritarian strict-father families’ while progressives reflected a ‘nurturant parent model, which values freedom, opportunity and community building’ (‘psychobabble’ was one verdict, ‘hooey’ another).

But there’s precious little evidence that they tell you what people think. One Lakoff-inspired study that at first glance resembles the Metaphor Program was carried out in the mid-1990s by Richard D. Anderson, a political scientist and Sovietologist at UCLA, who compared Brezhnev-era speeches by Politburo members with ‘transitional’ speeches made in 1989 and with post-1991 texts by post-Soviet politicians. He found, conclusively, that in the three periods of his study the metaphors used had changed entirely: ‘metaphors of personal superiority’, ‘metaphors of distance’, ‘metaphors of subordination’ were out; ‘metaphors of equality’ and ‘metaphors of choice’ were in. There was a measurable change in the prevailing metaphors that reflected the changing political situation. He concluded that ‘the change in Russian political discourse has been such as to promote the emergence of democracy’, that – in essence – the metaphors both revealed and enabled a change in thinking. On the other hand, he could more sensibly have concluded that the political system had changed and therefore the metaphors had to change too, because if a politician isn’t aware of what metaphors he’s using who is?

The IARPA metaphor programme follows an earlier proposal to weaponise irony:

If we don’t know how irony works and we don’t know how it is used by the enemy, we cannot identify it. As a result, we cannot take appropriate steps to neutralize ironizing threat postures. This fundamental problem is compounded by the enormous diversity of ironic modes in different world cultures and languages. Without the ability to detect and localize irony consistently, intelligence agents and agencies are likely to lose valuable time and resources pursuing chimerical leads and to overlook actionable instances of insolence. The first step toward addressing this situation is a multilingual, collaborative, and collative initiative that will generate an encyclopedic global inventory of ironic modalities and strategies. More than a handbook or field guide, the work product of this effort will take the shape of a vast, searchable, networked database of all known ironies. Making use of a sophisticated analytic markup language, this “Ironic Cloud” will be navigable by means of specific ironic tropes (e.g., litotes, hyperbole, innuendo, etc.), by geographical region or language field (e.g., Iran, North Korea, Mandarin Chinese, Davos, etc.), as well as by specific keywords (e.g., nose, jet ski, liberal arts, Hermès, night soil, etc.) By means of constantly reweighted nodal linkages, the Ironic Cloud will be to some extent self-organizing in real time and thus capable of signaling large-scale realignments in the “weather” of global irony as well as providing early warnings concerning the irruption of idiosyncratic ironic microclimates in particular locations—potential indications of geopolitical, economic, or cultural hot spots.

Superpower-level political entities (e.g., Roman Empire, George W. Bush, large corporations, etc.) have tended to look on irony as a “weapon of the weak” and thus adopted a primarily defensive posture in the face of ironic assault. But a historically sensitive consideration of major strategic realignments suggests that many critical inflection points in geopolitics (e.g., Second Punic War, American Revolution, etc.) have involved the tactical redeployment of “guerrilla” techniques and tools by regional hegemons. There is reason to think that irony, properly concentrated and effectively mobilized, might well become a very powerful armament on the “battlefield of the future,” serving as a nonlethal—or even lethal—sidearm in the hands of human fighters in an information-intensive projection of awesome force. Without further fundamental research into the neurological and psychological basis of irony, it is difficult to say for certain how such systems might work, but the general mechanism is clear enough: irony manifestly involves a sudden and profound “doubling” of the inner life of the human subject. The ironizer no longer maintains an integrated and holistic perspective on the topic at hand but rather experiences something like a small tear in the consciousness, whereby the overt and covert meanings of a given text or expression are sundered. We do not now know just how far this tear could be opened—and we do not understand what the possible vital consequences might be.

(via MeFi) ¶ cognitive science culture irony language metaphors psy-ops psychology sociolinguistics war 0 Share

Scientists have discovered how earworms work; apparently they work a lot like histamines. A succes sful earworm creates a "cognitive itch" in the brain which can only be "scratche d" by repeating the tune over and over.

Mozart's children would "infuriate" him by playing melody and scales on the pian o below his room - but stopping before completing the tune. "He would have to r ush down and complete the scale because he couldn't bear to listen to an unresol ved scale," Mr Smith related.

It may be cause for some concern that this research was presented at a conferenc e on Consumer Psychology.

¶ cognitive science earworms music psychology 0 Share

One of the speakers at the Cognitive Science Conference in Sydney claims that religious belief and delusion are related phenomena, and studying the former could help understand the latter:

Many religious beliefs were triggered by a bizarre or unexplained "religious experience", often produced by changes in brain activity. For example, it had been shown that when Buddhist monks went into deep mediation and had a sense of "being at one with the world", they also had decreased blood flow to the part of the brain responsible for concepts of the "self".

¶ cognitive science delusion neurotheology religion 5 Share

Research in neuroscience suggests that conscious free will may be an illusion, with decisions being made in the brain before they reach the conscious mind.

What Libet did was to measure electrical changes in people's brains as they flicked their wrists. And what he found was that a subject's ''readiness potential'' - the brain signal that precedes voluntary actions - showed up about one-third of a second before the subject felt the conscious urge to act. The result was so surprising that it still had the power to elicit an exclamation point from him in a 1999 paper: ''The initiation of the freely voluntary act appears to begin in the brain unconsciously, well before the person consciously knows he wants to act!''

Then the experimenters would use magnetic stimulation in certain parts of the brain just at the moment when the subject was prompted to make the choice. They found that the magnets, which influence electrical activity in the brain, had an enormous effect: On average, subjects whose brains were stimulated on their right-hand side started choosing their left hands 80 percent of the time. And, in the spookiest aspect of the experiment, the subjects still felt as if they were choosing freely.

Which makes sense; if cognition is a physical process, then so would be decision-making. And it could be that the conscious mind is a very small part of the processes of the brain.

I've suspected for a while that our conscious minds don't so much do the thinking as weave together a coherent internal narrative from the myriad of subconscious processes in our heads, providing a serial stream of consciousness essential to having the sense of self and the ability to introspection. So it could be that we don't consciously make any decisions, only rationalise what the physical processes in our brains do.

¶ cognitive science consciousness free will mind neuroscience philosophy psyghology 2 Share