science

[Researchers found that] when one is actively looking for an event with loose probabilistic and temporal expectancies on its occurrence, the awareness of otherwise unnoticed events improves.
This finding provides new insights on the attentional mechanisms behind the initial stages of serendipity.
{ Elsevier | Continue reading }
psychology | April 6th, 2016 2:05 pm

The Lunar Flag Assembly (LFA) was a kit containing a flag of the United States designed to be planted by astronauts on the Moon during the Apollo program. Seven such flag assemblies were sent to the Moon, six of which were planted.
{ Wikipedia | Continue reading }
Do the Apollo flags remain where they were planted or have they fallen or have they disintegrated after four decades of exposure the lunar environment? […] The (Apollo 11’s) flag is probably gone. Buzz Aldrin saw it knocked over by the rocket blast as he and Neil Armstrong left the moon 39 summers ago. […]
Intuitively, experts mostly think it highly unlikely the Apollo flags (See Platoff’s article Where No Flag Has Gone Before: Political and Technical Aspects of Placing a Flag on the Moon for details), could have endured the 42 years of exposure to vacuum, about 500 temperature swings from 242 F during the day to -280 F during the night, micrometeorites, radiation and ultraviolet light, some thinking the flags have all but disintegrated under such an assault of the environment. […]
The high-resolution images from the Lunar Reconnaissance Orbiter camera of the Apollo sites enable us to see if any of the flags still cast shadows. […] Combined with knowledge of the Apollo site maps which show where the flag was erected relative to the Lander, long shadows cast by the flags at three sites - Apollo 12, Apollo 16, and Apollo 17 - show that the these flags are still “flying”, held aloft by the poles.
{ NASA | Continue reading }
NASA has finally answered a long-standing question: all but one of the six American flags on the Moon are still standing up. The only problem is that they aren’t American flags anymore. They are all white.
{ Gizmodo | Continue reading }
flashback, space | April 6th, 2016 5:17 am

Theory of Mind (ToM) is the ability to understand the perspectives, mental states and beliefs of others in order to anticipate their behaviour and is therefore crucial to social interactions.
Although fMRI has been widely used to establish the neural networks implicated in ToM, little is known about the timing of ToM-related brain activity.
We used magnetoencephalography (MEG) to measure the neural processes underlying ToM, as MEG provides very accurate timing and excellent spatial localization of brain processes. We recorded MEG activity during a false belief task, a reliable measure of ToM, in twenty young adults (10 females). […]
Our findings extend the literature by demonstrating the timing and duration of neural activity in the main regions involved in the “mentalizing” network, showing that activations related to false belief in adults are predominantly right lateralized and onset around 100 ms.
{ NeuroImage | Continue reading }
still { Total Recall, 1990 }
brain, relationships | April 4th, 2016 10:50 am

Consuming alcohol, for example, really can make everyone else appear more physically attractive. […]
Also, playing hard-to-get almost never works. […]
Despite what many people think, opposites very rarely attract. In fact, decades of research has shown that attraction is most likely to be sparked when two people perceive themselves as being very similar to each other.
{ Quartz | Continue reading }
psychology, relationships | March 24th, 2016 8:52 am

264 right-handed, 246 mixed-handed and 360 left-handed students were requested to indicate on five maps of cinema halls what place they would choose. All three handedness groups showed a preference for the right and a corresponding directional bias towards the left space. However, they differed significantly from each other on the magnitude of this bias which was most pronounced in right and less in left handers. […]
It is hypothesized that right, mixed and left handers differ in a large number of behavioral choices and strategies, modeled by cerebrally lateralized mechanisms and that the cinema seating preference is only one of them.
{ Cortex | Continue reading }
still { Jean-Luc Godard, Nouvelle vague, 1990 }
brain | March 24th, 2016 8:52 am

Many situations in our lives require us to make relatively quick decisions as whether to approach or avoid a person or object, buy or pass on a product, or accept or reject an offer. These decisions are particularly difficult when there are both positive and negative aspects to the object. How do people go about navigating this conflict to come to a summary judgment? […]
We demonstrate […] that when positivity and negativity conflict, the valence that is based more on emotion is more likely to dominate.
{ Personality and Social Psychology Bulletin | Continue reading }
psychology | March 21st, 2016 6:35 am

This study aims to investigate the frequency and amount of female DNA transferred to the penis and underwear of males following staged nonintimate social contact with females and to compare the findings with the amount of female DNA transferred to the penis and subsequently to the underwear of a male who had engaged in unprotected sexual intercourse with a female. […]
It was possible to demonstrate that DNA can occasionally transfer to the waistband and outside front of underwear worn by a male following staged nonintimate social contact.
{ Science & Justice | Continue reading }
genes, sex-oriented | March 16th, 2016 4:35 pm

Researchers at Brigham Young University and Colorado State University have found that the noise your food makes while you’re eating can have a significant effect on how much food you eat.
The “Crunch Effect,” as they call it, suggests you’re likely to eat less if you’re more conscious of the sound your food makes while you’re eating. Therefore, watching loud TV or listening to loud music while eating can mask eating sounds that keep you in check.
To be clear, the researchers are not talking about the sizzle of bacon, the crack of crème brulee or popcorn popping. The effect comes from the sound of mastication: chewing, chomping, crunching.
{ EurekAlert | Continue reading }
food, drinks, restaurants, noise and signals, psychology | March 15th, 2016 2:57 pm

Two mathematicians have uncovered a simple, previously unnoticed property of prime numbers — those numbers that are divisible only by 1 and themselves. Prime numbers, it seems, have decided preferences about the final digits of the primes that immediately follow them.
Among the first billion prime numbers, for instance, a prime ending in 9 is almost 65 percent more likely to be followed by a prime ending in 1 than another prime ending in 9. In a paper posted online today, Kannan Soundararajan and Robert Lemke Oliver of Stanford University present both numerical and theoretical evidence that prime numbers repel other would-be primes that end in the same digit, and have varied predilections for being followed by primes ending in the other possible final digits. […]
This conspiracy among prime numbers seems, at first glance, to violate a longstanding assumption in number theory: that prime numbers behave much like random numbers. Most mathematicians would have assumed, Granville and Ono agreed, that a prime should have an equal chance of being followed by a prime ending in 1, 3, 7 or 9 (the four possible endings for all prime numbers except 2 and 5).
{ Quanta | Continue reading }
mathematics | March 14th, 2016 10:04 am

Because ovulating (i.e., high-fertility) women are both more attractive to men and also more attracted to (desirable) men, ovulating women may be perceived to pose heightened threats to other women’s romantic relationships. Across 4 experiments, partnered women were exposed to photographs of other women taken during either their ovulatory or nonovulatory menstrual-cycle phases, and consistently reported intentions to socially avoid ovulating (but not nonovulating) women - but only when their own partners were highly desirable. Exposure to ovulating women also increased women’s sexual desires for their (highly desirable) partners. These findings suggest that women can be sensitive to subtle cues of other women’s fertility and respond (e.g., via social exclusion, enhanced sexual attention to own mate) in ways that may facilitate their mate retention goals while not thwarting their affiliative goals.
{ Journal of Personality and Social Psychology | Continue reading }
Using luteinizing hormone tests to verify ovulation, across two studies (Samples 1 and 2), we found that women whose partners were relatively low in sexual desirability felt less close to their partner (Samples 1 and 2) and were more critical of their partner’s faults (Sample 2) on high-fertility days of the cycle just prior to ovulation compared with low-fertility days of the cycle. Women whose partners were relatively high in sexual desirability felt closer to their partner (Sample 1) and more satisfied with their relationship (Sample 2) on high- than low-fertility days of the cycle. There were no such shifts in women’s commitment to their relationship. Therefore, partner sexual desirability predicts women’s high-fertility assessments of relationship quality but not their intentions to stay in their relationship, consistent with the dual mating hypothesis. These findings suggest that variations across the ovulation cycle in women’s reproductive hormones play an important role in relationship dynamics.
{ Hormones and Behavior | PDF }
images { 1. Frederike Helwig | 2. Bonnie and Clyde (1967), publicity still, Faye Dunaway }
hormones, relationships | March 2nd, 2016 4:22 pm

The universe may have existed forever, according to a new model that applies quantum correction terms to complement Einstein’s theory of general relativity. The model may also account for dark matter and dark energy, resolving multiple problems at once.
The widely accepted age of the universe, as estimated by general relativity, is 13.8 billion years. In the beginning, everything in existence is thought to have occupied a single infinitely dense point, or singularity. Only after this point began to expand in a “Big Bang” did the universe officially begin.
Although the Big Bang singularity arises directly and unavoidably from the mathematics of general relativity, some scientists see it as problematic because the math can explain only what happened immediately after—not at or before—the singularity.
{ Phys.org | Continue reading }
Physics, space | February 22nd, 2016 1:55 pm

Organization members who engage in “moral objection” by taking a principled stand against ethically questionable activities help to prevent such activities from persisting. Unfortunately, research suggests that they also may be perceived as less warm (i.e., pleasant, nice) than members who comply with ethically questionable procedures.
{ Journal of Applied Psychology | Continue reading }
psychology | February 18th, 2016 3:28 pm

The benefits of mindfulness meditation, increasingly popular in recent years, are supposed to be many: reduced stress and risk for various diseases, improved well-being, a rewired brain. But the experimental bases to support these claims have been few. Supporters of the practice have relied on very small samples of unrepresentative subjects, like isolated Buddhist monks who spend hours meditating every day, or on studies that generally were not randomized and did not include placebocontrol groups.
This month, however, a study published in Biological Psychiatry brings scientific thoroughness to mindfulness meditation and for the first time shows that, unlike a placebo, it can change the brains of ordinary people and potentially improve their health. […]
First they recruited 35 unemployed men and women who were seeking work and experiencing considerable stress. Blood was drawn and brain scans were given. Half the subjects were then taught formal mindfulness meditation at a residential retreat center; the rest completed a kind of sham mindfulness meditation that was focused on relaxation and distracting oneself from worries and stress. […]
At the end of three days, the participants all told the researchers that they felt refreshed and better able to withstand the stress of unemployment. Yet follow-up brain scans showed differences in only those who underwent mindfulness meditation. There was more activity, or communication, among the portions of their brains that process stress-related reactions and other areas related to focus and calm. Four months later, those who had practiced mindfulness showed much lower levels in their blood of a marker of unhealthy inflammation than the relaxation group, even though few were still meditating.
{ NY Times | Continue reading }
brain, science | February 18th, 2016 3:27 pm

Venturing into novel terrain poses physical risks to a female and her offspring. Females have a greater tendency to avoid physical harm, while males tend to have larger range sizes and often outperform females in navigation-related tasks. Given this backdrop, we expected that females would explore a novel environment with more caution than males, and that more-cautious exploration would negatively affect navigation performance. […]
Findings support the idea that the fitness costs associated with long-distance travel may encourage females to take a more cautious approach to spatial exploration, and that this caution may partially explain the sex differences in navigation performance.
{ Human Nature | Continue reading }
evolution | February 18th, 2016 2:11 pm

The Sorrows of Young Werther was published in 1774, when Goethe (1749–1832) was just twenty-five years old. A product of true literary genius, it not only represents one of the greatest works of literature ever written, but it also offers keenly intuitive insight into one of the most terrible and mystifying emotional disorders that plague humankind.
Well before Sigmund Freud, and most probably destined to become an important source of Freud’s understanding of melancholic depression, Goethe was able to peer into the soul of those afflicted with what is now termed Major Depressive Disorder (and some forms of Bipolar Disorder) and see what is taking place within those who are suffering from it. It is impressive how clearly Goethe grasped the twin roles played in mel-ancholia of narcissistic object choice and extreme ambivalence toward a love object.
{ The Psychoanalytic Quarterly | PDF }
books, ideas, psychology, relationships | February 16th, 2016 12:39 pm

The First Brain - The Brain Occupying the Space in the Skull
All of us are familiar with the general presence and functioning of this brain as a receiver of information which then gets processed.
The Second Brain - The brain in the gut
It has been proven that the very same cells and neural network that is present in the brain in the skull is present in the gut as well and releases the same neurotransmitters as the brain in the skull. Not just that, about 90 percent of the bers in the primary visceral nerve, the vagus, carry information from the gut to the brain and not the other way around.
The Third Brain - The Global Brain
This is connected to the neural network that extends from each being on this planet beyond the con nes of the skull and the anatomy of the gut. It is inter-dimensional in nature and contains all frequencies of energies (low and high) and their corresponding information.
[…]
Every human being is born with the three brains described above, but Autistic Beings are more connected and more in-tune with all three simultaneously. But make no mistake – most autistic beings are not necessarily aware of the existence or their connection to these three brains beyond their volitional control although they are accessing information from all three to varying degrees almost all the time.
One of the manifestations of being tuned-in to this third brain is Telepathy.
{ Journal of Neurology and Neurobiology | PDF }
photo { Video screen shows images of blue sky on Tiananmen Square in Beijing, January 23, 2013 }
neurosciences | February 16th, 2016 12:39 pm

Marijuana is one of the most commonly used drugs in the United States, and use during adolescence — when the brain is still developing — has been proposed as a cause of poorer neurocognitive outcome. Nonetheless, research on this topic is scarce and often shows conflicting results, with some studies showing detrimental effects of marijuana use on cognitive functioning and others showing no significant long-term effects.
The purpose of the present study was to examine the associations of marijuana use with changes in intellectual performance in two longitudinal studies of adolescent twins (n = 789 and n = 2,277). We used a quasiexperimental approach to adjust for participants’ family background characteristics and genetic propensities, helping us to assess the causal nature of any potential associations. Standardized measures of intelligence were administered at ages 9–12 y, before marijuana involvement, and again at ages 17–20 y. Marijuana use was self-reported at the time of each cognitive assessment as well as during the intervening period.
Marijuana users had lower test scores relative to nonusers and showed a significant decline in crystallized intelligence between preadolescence and late adolescence. However, there was no evidence of a dose–response relationship between frequency of use and intelligence quotient (IQ) change. Furthermore, marijuana-using twins failed to show significantly greater IQ decline relative to their abstinent siblings.
Evidence from these two samples suggests that observed declines in measured IQ may not be a direct result of marijuana exposure but rather attributable to familial factors that underlie both marijuana initiation and low intellectual attainment.
{ Proceedings of the National Academy of Sciences }
photo { Julia Margaret Cameron, Paul and Virginia, 1864 }
brain, drugs, kids, psychology | February 16th, 2016 12:12 pm

News of the successful use of ether anesthesia on October 16, 1846, spread rapidly through the world. […] Incredibly, this option was not accepted by all, and opposition to the use of anesthesia persisted among some sections of society decades after its introduction.
We examine the social and medical factors underlying this resistance. […] Complications of anesthesia, including death, were reported in the press, and many avoided anesthesia to minimize the considerable risk associated with surgery. Modesty prevented female patients from seeking unconsciousness during surgery, where many men would be present. Biblical passages stating that women would bear children in pain were used to discourage them from seeking analgesia during labor. […] In certain geographical areas, notably Philadelphia, physicians resisted this Boston-based medical advance, citing unprofessional behavior and profit seeking.
{ Journal of Anesthesia History | Continue reading }
photo { Peter Martin, Greenwich Village Nudes, Figure #1, 1951 }
drugs, flashback, science | February 5th, 2016 3:33 pm

Seasonal affective disorder (SAD) is based on the theory that some depressions occur seasonally in response to reduced sunlight. SAD has attracted cultural and research attention for more than 30 years and influenced the DSM through inclusion of the seasonal variation modifier for the major depression diagnosis. This study was designed to determine if a seasonally related pattern of occurrence of major depression could be demonstrated in a population-based study. A cross-sectional U.S. survey of adults completed the Patient Health Questionnaire–8 Depression Scale. […] Depression was unrelated to latitude, season, or sunlight. Results do not support the validity of a seasonal modifier in major depression. The idea of seasonal depression may be strongly rooted in folk psychology, but it is not supported by objective data.
{ Clinical Psychological Science | Continue reading }
photo { Daido Moriyama }
climate, psychology | February 1st, 2016 1:09 pm

{ Margaret Hamilton standing next to listings of the Apollo Guidance Computer source code, January 1969 | Margaret Hamilton (born August 17, 1936) is a computer scientist, systems engineer, and business owner. She was Director of the Software Engineering Division of the MIT Instrumentation Laboratory, which developed on-board flight software for the Apollo space program. | Wikipedia | Continue reading }
space | January 28th, 2016 10:01 am