Targeted Memory Reactivation During Sleep Improves Next-Day Problem Solving

Many people have claimed that sleep has helped them solve a difficult problem, but empirical support for this assertion remains tentative. […]

In the evening, we presented 57 participants with puzzles, each arbitrarily associated with a different sound. While participants slept overnight, half of the sounds associated with the puzzles they had not solved were surreptitiously presented.

The next morning, participants solved 31.7% of cued puzzles, compared with 20.5% of uncued puzzles (a 55% improvement). […]

These results demonstrate that cuing puzzle information during sleep can facilitate solving, thus supporting sleep’s role in problem incubation.

{ Sage | Continue reading }

art { John Gerrard, Western Flag (Spindletop Texas), 2017 }

You might (or might not) be surprised at how often in my work as a mortician I am asked whether a mourning family member can keep a dearly departed’s skull. […] In theory, people get to decide what happens to their body after death. In reality, it is near impossible to get legal permission to display a relative’s skeleton. […]

As a funeral professional, I frankly have no idea what equipment a proper decapitation requires. The subsequent de-fleshing would probably involve boiling and/or dermestid beetles, incredible creatures used in museums and forensic labs to delicately eat the dead flesh off a skeleton without destroying the bones. Dermestids are happy to wade into a gruesome, sticky mass of decaying flesh and delicately clean around even the tiniest of bones. […]

Abuse-of-corpse laws exist for a reason. They protect people’s bodies from being mistreated (ahem, necrophilia). They also prevent a corpse from being snatched from the morgue and used for research or public exhibition without the dead person’s consent. History is littered with such violations. Medical professionals have stolen corpses and even dug up fresh graves to get bodies for dissection and research. […]

In the United States, no federal law prevents owning, buying, or selling human remains, unless the remains are Native American. Otherwise, whether you’re able to sell or own human remains is decided by each individual state. At least 38 states have laws that should prevent the sale of human remains, but in reality the laws are vague, confusing, and enforced at random. In one seven-month period in 2012–13, 454 human skulls were listed on eBay, with an average opening bid of just under $650 (eBay subsequently banned the practice).

{ The Atlantic | Continue reading }

Stendhal syndrome, Stendhal’s syndrome or Florence syndrome is a psychosomatic condition involving rapid heartbeat, fainting, confusion and even hallucinations, allegedly occurring when individuals become exposed to objects or phenomena of great beauty.

Although psychologists have long debated whether Stendhal’s syndrome exists, the apparent effects on some individuals are severe enough to warrant medical attention.

Though there are numerous accounts of people fainting while taking in Florentine art, dating from the early 19th century on, the syndrome was only named in 1979; when it was described by Italian psychiatrist Graziella Magherini, who observed over a hundred similar cases among tourists in Florence.

{ Wikipedia | Continue reading }

Social media consumption plays an important role in everyday life and, thus, one would expect that this topic is reflected in dreams. […] Social media dreams were quite rare (two percent of all remembered dreams)

{ Cyberpsychology, Behavior, and Social Networking | Continue reading }

Scientists disagree as to what extent dreams reflect subconscious desires, but new research [2009] reported in the Journal of Personality and Social Psychology concludes that dreams do influence people’s decisions and attitudes.

{ American Psychological Association | Continue reading }

quote { NeuroSkeptic | more }

Physicists have long struggled with a perplexing conundrum: How do we reconcile what we see in the quantum world with what we don’t in the classical world? In a phenomenon called quantum superposition, particles have been shown to shift between particle-like and wave-like states, meaning they’re in two places at once.

But this phenomenon hasn’t been observed with more massive objects—it’s only been seen in the smallest particles, such as atoms, photons, and electrons. That’s beginning to change. […]

Physicist Markus Arndt of the University of Vienna and an international team of researchers have demonstrated quantum superposition in molecules, the largest particles ever tested.

{ Popular Mechanics | Continue reading }

photo { Andy Warhol: Elvis Paintings, Ferus Gallery, Los Angeles, 1963 }

A standard response of both policy makers and private citizens to hardships—from natural disasters to mass shootings—is to offer “thoughts and prayers.” Critics argue that such gestures are meaningless and may obstruct structural reforms intended to mitigate catastrophes. In this study, we elicit the value of receiving thoughts and prayers from strangers following adversity. We find that Christians value thoughts and prayers from religious strangers and priests, while atheists and agnostics are “prayer averse”—willing to pay to avoid receiving prayers. Furthermore, while indifferent to receiving thoughts from other secular people, they negatively value thoughts from Christians.

{ PNAS | Continue reading }

photo { Guy Bourdin | Vogue France, May 1970 }

studies have shown that America has been getting more narcissistic since the Seventies […] one study found narcissistic traits to be rising as quickly as obesity, while yet another showed that almost one-third of high school students in America in 2005 said that they expected to eventually become famous.

{ Rolling Stone | Continue reading }

When faced with a personal problem people typically give better advice to others than to themselves. This has been termed ‘Solomon’s Paradox’, named after the biblical King Solomon who was wise for others, but not so when it came to making decisions that would have an impact on his own standing.

Suppose that instead of imagining a problem from the perspective of another you were actually able to have a conversation with yourself about it, but from the embodied perspective of another.

A previous study showed how it is possible to enact internal dialogue in virtual reality (VR) through participants alternately occupying two different virtual bodies – one representing themselves and the other Sigmund Freud. They could maintain a self-conversation by explaining their problem to the virtual Freud and then from the embodied perspective of Freud see and hear the explanation by their virtual doppelganger, and then give some advice. Alternating between the two bodies they could maintain a self-dialogue, as if between two different people.

Here we show that the process of alternating between their own and the Freud body is important for successful psychological outcomes. An experiment was carried out with 58 people, 29 in the body swapping Self-Conversation condition and 29 in a condition where they only spoke to a Scripted Freud character. The results showed that the Self-Conversation method results in a greater perception of change and help compared to the Scripted. We compare this method with the distancing paradigm where participants imagine resolving a problem from a first or third person perspective.

We consider the method as a possible strategy for self-counselling.

{ Nature | Continue reading }

synthetic polymer and silkscreen ink on canvas { Andy Warhol, Are You “Different?” (Positive), 1985 }

We analyzed over one million posts from over 4,000 individuals on several social media platforms, using computational models based on reward reinforcement learning theory. Our results consistently show that human behavior on social media qualitatively and quantitatively conforms to the principles of reward learning.

{ PsyArXiv | Continue reading }

image { Dissecting Reinforcement Learning }

{ Horns are growing on young people’s skulls, caused by the forward tilt of the head. Phone use is to blame, research suggests. | Washington Post | No, Teenagers Are Not Growing ‘Skull Horns’ Because of Smartphones | Time }

Suppose you live in a deeply divided society: 60% of people strongly identify with Group A, and the other 40% strongly identify with Group B. While you plainly belong to Group A, you’re convinced this division is bad: It would be much better if everyone felt like they belonged to Group AB. You seek a cohesive society, where everyone feels like they’re on the same team.

What’s the best way to bring this cohesion about? Your all-too-human impulse is to loudly preach the value of cohesion. But on reflection, this is probably counter-productive. When members of Group B hear you, they’re going to take “cohesion” as a euphemism for “abandon your identity, and submit to the dominance of Group A. ”None too enticing. And when members of Group A notice Group B’s recalcitrance, they’re probably going to think, “We offer Group B the olive branch of cohesion, and they spit in our faces. Typical.” Instead of forging As and Bs into one people, preaching cohesion tears them further apart.

What’s the alternative? Simple. Instead of preaching cohesion, reach out to Group B. Unilaterally show them respect.Unilaterally show them friendliness. They’ll be distrustful at first, but cohesion can’t be built in a day. 

{ The Library of Economics and Liberty | Continue reading }

photo { Stephen Shore, Queens, New York, April 1972 }

Grow Your Own Cloud is a new service that helps you store your data nature’s way — in the DNA of plants.

We are at the forefront of the development of a new type of cloud, one that is organic, rather than silicon, and which emits oxygen rather than CO2.

{ GrowYourOwn.Cloud | Continue reading | Thanks Tim}

The mind-body problem enjoyed a major rebranding over the last two decades and is generally known now as the “hard problem” of consciousness […] Fast forward to the present era and we can ask ourselves now: Did the hippies actually solve this problem? My colleague Jonathan Schooler of the University of California, Santa Barbara, and I think they effectively did, with the radical intuition that it’s all about vibrations … man. Over the past decade, we have developed a “resonance theory of consciousness” that suggests that resonance—another word for synchronized vibrations—is at the heart of not only human consciousness but of physical reality more generally. […]

Stephen Strogatz provides various examples from physics, biology, chemistry and neuroscience to illustrate what he calls “sync” (synchrony) […] Fireflies of certain species start flashing their little fires in sync in large gatherings of fireflies, in ways that can be difficult to explain under traditional approaches. […] The moon’s rotation is exactly synced with its orbit around the Earth such that we always see the same face. […]

The panpsychist argues that consciousness (subjectivity) did not emerge; rather, it’s always associated with matter, and vice versa (they are two sides of the same coin), but mind as associated with most of the matter in our universe is generally very simple. An electron or an atom, for example, enjoy just a tiny amount of consciousness. But as matter “complexifies,” so mind complexifies, and vice versa.

{ Scientific American | Continue reading | Thanks Tim }

Despite variation in lifestyle and environment, first signs of human facial aging show between the ages of 20–30 years. It is a cumulative process of changes in the skin, soft tissue, and skeleton of the face. As quantifications of facial aging in living humans are still scarce, we set out to study age-related changes in three- dimensional facial shape using geometric morphometrics.


We collected surface scans of 88 human faces (aged 26–90 years) from the coastal town Split (Croatia) and neighboring islands. Based on a geometric morphometric analysis of 585 measurement points (landmarks and semi- landmarks), we modeled sex-specific trajectories of average facial aging.


Age-related facial shape change was similar in both sexes until around age 50, at which time the female aging trajectory turned sharply. The overall magnitude of facial shape change (aging rate) was higher in women than men, especially in early postmenopause. Aging was generally associated with a flatter face, sagged soft tissue (“broken” jawline), deeper nasolabial folds, smaller visible areas of the eyes, thinner lips, and longer nose and ears. In postmenopausal women, facial aging was best predicted by the years since last menstruation and mainly attributable to bone resorption in the mandible.


{ Physical Anthropology | Continue reading }

During my clinical internship over 20 years ago, my boss, a psychiatrist, asked me to research how PMS prevents women from thinking clearly. I told him he was a relic of the Stone Age. Women were as consistently clearheaded as men, if not more so.

But recently, a researcher in my lab, Joe Andreano, an expert on female hormones, showed me some surprising data. As a woman’s levels of progesterone and estrogen vary, so does the connectivity between two brain networks: the default mode network and the salience network. These networks play key roles in creating your emotional life.

If I hadn’t seen the data with my own eyes, I wouldn’t have believed it.

When scientists say that brain networks are “strongly connected” or have “increased connectivity,” it means that the neurons have an easier time passing information back and forth. In the case of the default mode and salience networks, increased connectivity means (among other things) that you may experience more powerful negative emotions. In earlier research, for example, my colleagues and I found that people reported more intense sadness when watching the sentimental movie “Stepmom” and more intense fear when watching the horror movie “The Ring Two” in the moments when these brain networks were more connected.

There has also been a flurry of recent studies indicating that certain cocktails of ovarian hormones can make women feel lousy, particularly a week or so before menstruation. Female test subjects who receive ovarian hormones designed to mimic the menstrual cycle, for example, report an increase in negative mood. They also remember negative material better, and they show enhanced stress responses. […]

 I’m not saying that women turn into helpless snowflakes for a few days each month. I’m just saying that the biology is real: Some women may have a short window before their period when, if something bad happens, they will feel more negative or stressed and will remember that unpleasant event more easily.

A few bad feelings or memories aren’t inherently harmful, of course. But this window of vulnerability, combined with other risk factors, could increase the odds of developing mood disorders like depression.

{ NY Times | Continue reading }

enamel on linen { Christopher Wool, Untitled, 1998 }

The mainstream sciences are experiencing a revolution of methodology. This revolution was inspired, in part, by the realization that a surprising number of findings in the bioscientific literature could not be replicated or reproduced by independent laboratories and were likely false discoveries.

In response – as reflected in a 2018 report of the National Academy of Sciences, Engineering, and Medicine – scientific norms and practices are rapidly moving towards openness. These reforms promise many enhancements to the scientific process, notably improved efficiency and reliability of findings.

Changes are also underway in the forensic sciences (although they have recently hit substantial political roadblocks). After years of legal-scientific criticism and several reports from peak scientific bodies, efforts are underway to establish the validity of several forensic practices and ensure forensic scientists perform and present their work in a scientifically valid way.

In this article, the authors suggest that open science reforms are distinctively suited to addressing the problems faced by forensic science. Openness comports with legal and criminal justice values, helping ensure expert forensic evidence is more reliable and susceptible to rational evaluation by the trier of fact.

{ LawArXiv | Continue reading }

transparency in lightbox { Jeff Wall, A Sunflower, 1995 }

If you wear designer glasses, there’s a very good chance you’re wearing Luxottica frames.

The company’s owned and licensed brands include Armani, Brooks Brothers, Burberry, Chanel, Coach, DKNY, Dolce & Gabbana, Michael Kors, Oakley, Oliver Peoples, Persol, Polo Ralph Lauren, Ray-Ban, Tiffany, Valentino, Vogue and Versace.

Along with LensCrafters, Luxottica also runs Pearle Vision, Sears Optical, Sunglass Hut and Target Optical, as well as the insurer EyeMed Vision Care.

And Italy’s Luxottica now casts an even longer shadow over the eyewear industry after merging last fall with France’s Essilor, the world’s leading maker of prescription eyeglass lenses and contact lenses. The combined entity is called EssilorLuxottica. […]

“You can get amazingly good frames, with a Warby Parker level of quality, for $4 to $8,” Butler said. “For $15, you can get designer-quality frames, like what you’d get from Prada.”

And lenses? “You can buy absolutely first-quality lenses for $1.25 apiece,” Butler said.

Yet those same frames and lenses might sell in the United States for $800.

{ Los Angeles Times | Continue reading }

photo { Jeff Wall, Parent child, 2018 }

It seems that as we get older our ears get bigger (on average by 0.22 mm a year).

{ BMJ | Continue reading | PDF }

photo { Philip-Lorca diCorcia, Catherine, 1981 }

Beer bottles are often used in physical disputes. If the bottles break, they may give rise to sharp trauma. However, if the bottles remain intact, they may cause blunt injuries. […]

We tested the fracture properties of beer bottles in a drop-tower. Full bottles broke at 30 J impact energy, empty bottles at 40 J. These breaking energies surpass the minimum fracture-threshold of the human neurocranium. […]

The phenomenon of empty beer bottles breaking at higher energies than full ones is explainable by two factors. Firstly, beer is an almost incompressible fluid. Even a slight deformation of the bottle due to the impact of the steel ball leads to an increase of the pressure within the bottle and its destruction. Another possibly major additional factor may be that beer is carbonated.

{ Journal of Forensic and Legal Medicine | Continue reading }

photo { Stephen Shore, Miami, Oklahoma, July 1972 }

The scrotum in humans is asymmetric, the right testicle being visibly higher than the left in most men. Paradoxically, it is also the case that the right testicle is somewhat larger, rather than smaller, as might be expected. […]

The cause of this asymmetry is not clear. We may however reject a simple mechanical explanation which would say that the heavier of the two organs is pulled to the lower position by the action of gravity, for in both adults and foetuses it is clear that the right testicle is both the heavier and also the greater in volume; that is the larger and heavier is also the higher. Such a relationship is counter-intuitive, and we may expect that it would present difficulties to artists, and to sculptors in particular. […]

Greek classical and pre-classical art, which took great care in its attention to anatomical detail, correctly portrayed the right testicle as the higher, but then incorrectly portrayed the left testicle as visibly larger.

{ Laterality | Continue reading | previously }