Lean allegedly came from the Japanese manufacturing model in the 1980s and 90s, yet its governing principles, the ‘Five Ss’, are explained in Frederick Taylor’s 1911 book The Principles of Scientific Management in beautiful detail: Sort – you look at a workspace and you see what is needed for the job; everything else, pictures, food, drinks, anything apparently superfluous, you take out. Then you Set in order, so for example if somebody is right-handed you’d make sure you they were sitting in a right-handed workspace. Then Shine – you take everything off and clean ­– or shine – the workspace, so that managers can see that you’re doing your job and nothing else. Then you Standardize, so that if you’re in Leicester or Lima it’s the same recognizable corporate space. Then Sustain, always said to be the hardest one – keep it going. Of course Sustain is difficult if you go into a workspace and mess around with it in this way, you generate the Hawthorne effect – a quick peak of interest and then a trough of disappointment, so Sustain is hard. But the psychologically interesting thing is that people still think, ‘It must work.’

We don’t understand psychologically why putting someone in an impoverished space should work, when it doesn’t work for any other animal on the planet. Put an ant in a lean jam jar or a gorilla in a lean cage and they’re really miserable, so why should it work for people? So we started to experiment. […]

Every time we’ve experimented, we’ve found well-being and productivity have been inextricably linked. Over eight years, lean has always, without exception, been the worst condition you can put anyone into.

{ Craig Knight/The Psychologist | Continue reading }

Ovulation, Female Competition, and Product Choice: Hormonal Influences on Consumer Behavior

Recent research shows that women experience nonconscious shifts across different phases of the monthly ovulatory cycle. For example, women at peak fertility (near ovulation) are attracted to different kinds of men and show increased desire to attend social gatherings. Building on the evolutionary logic behind such effects, we examined how, why, and when hormonal fluctuations associated with ovulation influenced women’s product choices. In three experiments, we show that at peak fertility women nonconsciously choose products that enhance appearance (e.g., choosing sexy rather than more conservative clothing). This hormonally regulated effect appears to be driven by a desire to outdo attractive rival women. Consequently, minimizing the salience of attractive women who are potential rivals sup- presses the ovulatory effect on product choice. This research provides some of the first evidence of how, why, and when consumer behavior is influenced by hormonal factors.

Ovulation Leads Women to Perceive Sexy Cads as Good Dads

Why do some women pursue relationships with men who are attractive, dominant, and charming but who do not want to be in relationships—the prototypical sexy cad? Previous research shows that women have an increased desire for such men when they are ovulating, but it is unclear why ovulating women would think it is wise to pursue men who may be unfaithful and could desert them. […] Ovulating women perceive that sexy cads would be good fathers to their own children but not to the children of other women.

{ Improbable Research | Links to PDFs }

A new computer algorithm can analyze the footwear marks left at a crime scene according to clusters of footwear types, makes and tread patterns even if the imprint recorded by crime scene investigators is distorted or only a partial print.

Footwear marks are found at crime scenes much more commonly than fingerprints. […] They point out that while footprints are common they are often left unused by forensic scientists because marks may be distorted, only a partial print may be left and because of the vast number of shoe shapes and sizes. However, matching a footprint at a crime scene can quickly narrow the number of suspects and can tie different crime scenes to the same perpetrator even if other evidence is lacking.

{ EurekAlert | Continue reading }

images { 1 | 2 }

Every several years, IQ tests test have to be “re-normed” so that the average remains 100. This means that a person who scored 100 a century ago would score 70 today; a person who tested as average a century ago would today be declared mentally retarded. […]

Do rising IQ scores really mean we are getting smarter? […]

Implicit in Flynn’s argument that we are becoming “more modern” is that IQ gains are due to environmental factors, not genetic ones. […] He invokes environmental factors, for example, to explain the shrinking male/female IQ gap and debunk notions of innate differences in intelligence between men and women. He uses similar reasoning to explain IQ differences between developed and developing countries.

{ TNR | Continue reading }

photo { Johan Willner }

What’s the best way to make a good first impression? […] Be yourself.

{ peer-reviewed by my neurons | Continue reading }

First impressions are powerful and are formed in all sorts of social settings, from job interviews and first dates to court rooms and classrooms. We regularly make snap judgments about others, deciding whether people are trustworthy, confident, extraverted, likable, and more. Although we have all heard the old adage, “don’t judge a book by its cover,” we do just that. And at the same time that we are judging others, we in turn communicate a great deal of information about ourselves – often unwittingly – that others use to size us up.

{ Scientific American | Continue reading }

art { Christen Brun, A Basket Of Ribbons, 1896 }

…scientific research with actual forensic examiners which [showed] that the *same* expert, examining the *same* evidence, can reach different conclusions when they are affected by bias. The problem was also demonstrated in fingerprinting and DNA, very robust forensic domains. […]

Fingerprinting, DNA, CCTV images, firearms, shoe and tire marks, document examination, and so on. When there is no instrument that says ‘match’ or ‘no-match’ and it is in the ‘eye of the beholder’ to make the judgement, then subjectivity comes in, and is open to cognitive bias. Essentially, forensic areas in which there are no objective criteria: where it is the forensic expert who compares visual patterns and determines if they are ‘sufficiently similar’ or ‘sufficiently consistent’. For example, whether two fingerprints were made by the same finger, whether two bullets were fired from the same gun, whether two signatures were made by the same person. Such determinations are governed by a variety of cognitive processes.

{ Itiel Dror/Mind Hacks | Continue reading }

We also inherit — through genes yet to be identified, of course — a trait known as developmental stability. This is essentially the accuracy with which the genetic blueprint is built. Developmental stability keeps the project on track. It reveals itself most obviously in physical symmetry. The two sides of our bodies and brains are constructed separately but from the same 23,000-gene blueprint. If you have high developmental stability, you’ll turn out highly symmetrical. Your feet will be the same shoe size, and the two sides of your face will be identical.

If you’re less developmentally stable, you’ll have feet up to a half-size different and a face that’s like two faces fused together.

{ NY Times | Continue reading }

photo { Jo Longhurst }

In the summer of 2008, police arrived at a caravan in the seaside town of Aberporth, west Wales, to arrest Brian Thomas for the murder of his wife. The night before, in a vivid nightmare, Thomas believed he was fighting off an intruder in the caravan – perhaps one of the kids who had been disturbing his sleep by revving motorbikes outside. Instead, he was gradually strangling his wife to death. When he awoke, he made a 999 call, telling the operator he was stunned and horrified by what had happened, and unaware of having committed murder.

Crimes committed by sleeping individuals are mercifully rare. Yet they provide striking examples of the unnerving potential of the human unconscious. In turn, they illuminate how an emerging science of consciousness is poised to have a deep impact upon concepts of responsibility that are central to today’s legal system.

After a short trial, the prosecution withdrew the case against Thomas. Expert witnesses agreed that he suffered from a sleep disorder known as pavor nocturnus, or night terrors, which affects around one per cent of adults and six per cent of children.

[…]

It is commonplace to drive a car for long periods without paying much attention to steering or changing gear. According to Jonathan Schooler, professor of psychology at the University of California, Santa Barbara, ‘we are often startled by the discovery that our minds have wandered away from the situation at hand’. But if I am unconscious of my actions when I zone out, to what degree is it really ‘me’ doing the driving?

This question takes on a more urgent note when the lives of others are at stake. […] The driver appeared in Worcester Crown Court on charges of causing death by reckless driving. For the defence, a psychologist described to the court that ‘driving without awareness’ might occur following long, monotonous periods at the wheel. The jury was sufficiently convinced of his lack of conscious control to acquit on the basis of automatism.

The argument for a lack of consciousness here is much less straightforward than for someone who is asleep. In fact, the Court of Appeal said that the defence of automatism should not have been on the table in the first place, because a driver without ‘awareness’ still retains some control of the car. None the less, the grey area between being in control and aware on the one hand, and in control and unaware on the other, is clearly crucial for a legal notion of voluntary action.

If we accept automatism then we reduce the conscious individual to an unconscious machine. However, we should remember that all acts, whether consciously thought-out or reflexive and automatic, are the product of neural mechanisms.

{ aeon | Continue reading }

previously { Sometime after 2 A.M. one Sunday morning in May 1987, Kenneth James Parks drove 23 kilometers to the apartment of his wife’s parents. }

photo { Claudine Doury }

{ A new study suggests that if you’re looking for employment, wearing red is a bad decision }

photo { Nadav Kander }

In both the lab and the field, female subjects tend to show greater confidence in their groups than in themselves, while male subjects show greater confidence in themselves than in their groups.

{ PDF | via OvercomingBias }

photos { Joseph Cultice }

A cute mistake that young children make is to think that they can hide themselves by covering or closing their eyes. Why do they make this error? A research team led by James Russell at the University of Cambridge has used a process of elimination to find out. […]

The revelation that most young children think people can only see each other when their eyes meet raises some interesting question for future research.

{ BPS | Continue reading }

In the 1990s, Thomas Quick confessed to more than 30 murders, making him Sweden’s most notorious serial killer. Then, he changed his name and revealed his confessions were all faked. […]

There were no DNA traces, no murder weapons, no eyewitnesses – nothing apart from his confessions, many of which had been given when he was under the influence of narcotic-strength drugs.

{ Guardian | full story }

image { Marina Abramović, Rhythm 10, 1973 }

This article examines cognitive links between romantic love and creativity and between sexual desire and analytic thought based on construal level theory. It suggests that when in love, people typically focus on a long-term perspective, which should enhance holistic thinking and thereby creative thought, whereas when experiencing sexual encounters, they focus on the present and on concrete details enhancing analytic thinking. Because people automatically activate these processing styles when in love or when they experience sex, subtle or even unconscious reminders of love versus sex should suffice to change processing modes. Two studies explicitly or subtly reminded participants of situations of love or sex and found support for this hypothesis.

{ Personality and Social Psychology Bulletin/SAGE | PDF }

Taphophobia means “fear of graves” (taphos = tomb, and phobia = fear of), but its common use is “fear of being buried alive.” Premature burial is not an urban legend, incidents have been documented in nearly every society. […]

Many cultures built time delays into their death rites to make sure someone was truly dead. Greeks washed the dead… and some would wake up. In more difficult cases, they would cut off fingers or dunk the bodies in warm baths. The custom of the Irish wake began with the Celts watching the body for signs of life. But mistakes were made, often in times of epidemic. The hopes of preventing the spread of infection often lead to burying the dead before they were quite dead. […]

In her 1996 book, The Corpse: A History, Christine Quigley documents many instances of premature burial and near-premature burial. Skeletons were outside their coffins, sitting up in the corner of their vault after being opened years later. Others were found turned over in their caskets, with tufts of their own hair in their hands.

How might this happen? What conditions might make it look so much like you were dead that even your loved ones would let them plant you in the ground? The list is long and varied, but here are some of the more common things that can make you look dead:

Asphyxiation […]

Catalepsy […]

Coma […]

Apoplexy

{ As Many Exceptions As Rules | Continue reading }

The notion of panspermia – the transferral of viable organisms between planets, and even between star systems, seems to be getting a bit more attention these days. […]

There is no doubt that planetary surface material is continually being shipped around between rocky planets and moons in our solar system. Ejected by high energy asteroid or comet impacts, chunks of stuff follow a range of orbital trajectories that result in both eventual return to their origins or transferral to the surfaces of other worlds. Increasing evidence suggests that a variety of (typically microbial) organisms could be carried along, surviving both the extremes of pressure and acceleration, as well as exposure to thousands to millions of years of interplanetary space. They need not do this in stasis, tucked well inside the interstices of rock and ice it’s not inconceivable that microbes could be passengers in the natural equivalent of the generation ships of science fiction.

It means that there is a real possibility for life to both cross-infect, and even to be ‘seeded’ from planet or moon to planet or moon. […] Enthusiasts for panspermia go further, and have been known to invoke these mechanisms for galaxy-wide dispersal of life – taking one rare occurrence of life and spreading it across the stars. […]

There is a factor about large-scale panspermia that to my knowledge is rarely considered, and that is natural selection. […] The sequence of events involved in panspermia will weed out all but the toughest or most serendipitously suited organisms. So, let’s suppose that galactic panspermia has really been going on for the past ten billion years or so – what do we end up with?

{ Scientific American | Continue reading }

photo { Adam Kremer }

Neuroscientists from New York University and the University of California, Irvine have isolated the “when” and “where” of molecular activity that occurs in the formation of short-, intermediate-, and long-term memories. Their findings, which appear in the journal the Proceedings of the National Academy of Sciences, offer new insights into the molecular architecture of memory formation and, with it, a better roadmap for developing therapeutic interventions for related afflictions.

{ NYU | Continue reading }

When I wrote about the marshmallow test several years ago, it seemed so simple:

A child was given a marshmallow and told he could either ring a bell to summon the researcher and get to eat the marshmallow right away or wait a few minutes until the researcher returned, at which time the child would be given two marshmallows. It’s a simple test of self control, but only about a third of kids that age will wait for the second marshmallow. What’s more interesting, though, is that success on that test correlates pretty well with success later in life. The children who can’t wait grow up to have lower S.A.T. scores, higher body mass indexes, problems with drugs and trouble paying attention.

The initial finding hasn’t been overturned, but a new study in the journal Cognition is adding a layer of complexity to the test with the finding that whether the child perceives the researcher as trustworthy matters.

{ Smithsonian | Continue reading }

When humans evolved bigger brains, we became the smartest animal alive and were able to colonise the entire planet. But for our minds to expand, a new theory goes, our cells had to become less willing to commit suicide – and that may have made us more prone to cancer.

When cells become damaged or just aren’t needed, they self-destruct in a process called apoptosis. In developing organisms, apoptosis is just as important as cell growth for generating organs and appendages – it helps “prune” structures to their final form.

By getting rid of malfunctioning cells, apoptosis also prevents cells from growing into tumours. […]

McDonald suggests that humans’ reduced capacity for apoptosis could help explain why our brains are so much bigger, relative to body size, than those of chimpanzees and other animals. When a baby animal starts developing, it quickly grows a great many neurons, and then trims some of them back. Beyond a certain point, no new brain cells are created.

Human fetuses may prune less than other animals, allowing their brains to swell.

{ NewScientist | Continue reading }

When we read a text, we hear a voice talking to us. Yet the voice changes over time. In his new book titled Poesins röster, Mats Malm, professor in comparative literature at the University of Gothenburg, Sweden, shows that when reading older literature, we may hear completely different voices than contemporary readers did – or not hear any voices at all.

‘When we read a novel written today, we hear a voice that speaks pretty much the same language we speak, and that addresses people and things in a way we are used to. But much happens as a text ages – a certain type of alienation emerges. The reader may still hear a voice, but will not understand it fully and therefore risks missing important aspects,’ says Mats Malm.

{ EurekAlert | Continue reading }