Saturday, January 6, 2018

This man is superhuman, and very rarely lets his feelings color his economic judgement. In fact, it seems that this happened to him just once, and quickly retracted. Besides, he is so old-fashioned that he tries to admit and learn from his mistakes

This man is superhuman, and very rarely lets his feelings color his economic judgement. In fact, it seems that this happened to him just once, and quickly retracted. Besides, he is so old-fashioned that he tries to admit and learn from his mistakes:

Can the Economy Keep Calm and Carry On? Paul Krugman. The New York Times, Jan 01 2018, https://www.nytimes.com/2018/01/01/opinion/can-the-economy-keep-calm-and-carry-on.html
On election night 2016, I gave in temporarily to a temptation I warn others about: I let my political feelings distort my economic judgment. A very bad man had just won the Electoral College; and my first thought was that this would translate quickly into a bad economy. I quickly retracted the claim, and issued a mea culpa. (Being an old-fashioned guy, I try to admit and learn from my mistakes.)

What I should have clung to, despite my dismay, was the well-known proposition that in normal times the president has very little influence on macroeconomic developments — far less influence than the chair of the Federal Reserve.

[...]
 ---

        "Some have asked if there aren't conservative sites I read regularly. Well, no. I will read anything I've been informed about that's either interesting or revealing; but I don't know of any economics or politics sites on that side that regularly provide analysis or information I need to take seriously."--Paul Krugman, New York Times website, March 8, 2011, http://krugman.blogs.nytimes.com/2011/03/08/other-stuff-i-read/

        "I brought up the work of the legal scholar Cass Sunstein, now with the Obama administration, who has studied the radicalizing effects of ideological isolation--the idea, born from studies of three-judge panels, that if you are not in regular conversation with people who differ from you, you can become far more extreme. It is a very Obama idea, and I asked Krugman if he ever worried that he might succumb to that tendency. 'It could happen,' he says. 'But I work a lot from data; that's enough of an anchor. I have a good sense when a claim has gone too far.' "--Benjamin Wallace-Wells, New York magazine, April 24, 2011, http://nymag.com/print/?/news/politics/paul-krugman-2011-5/index5.html

 

Update: The Washington Post & Gavin Schmidt on Sept 2023 temps https://www.bipartisanalliance.com/2023/10/the-washington-post-gavin-schmidt-on.html

Investigation of brain structure in the 1-month infant – Girls and boys are different by then...

Investigation of brain structure in the 1-month infant. Douglas C. Dean III. Brain Structure and Function, https://link.springer.com/article/10.1007/s00429-017-1600-2

Abstract: The developing brain undergoes systematic changes that occur at successive stages of maturation. Deviations from the typical neurodevelopmental trajectory are hypothesized to underlie many early childhood disorders; thus, characterizing the earliest patterns of normative brain development is essential. Recent neuroimaging research provides insight into brain structure during late childhood and adolescence; however, few studies have examined the infant brain, particularly in infants under 3 months of age. Using high-resolution structural MRI, we measured subcortical gray and white matter brain volumes in a cohort (N = 143) of 1-month infants and examined characteristics of these volumetric measures throughout this early period of neurodevelopment. We show that brain volumes undergo age-related changes during the first month of life, with the corresponding patterns of regional asymmetry and sexual dimorphism. Specifically, males have larger total brain volume and volumes differ by sex in regionally specific brain regions, after correcting for total brain volume. Consistent with findings from studies of later childhood and adolescence, subcortical regions appear more rightward asymmetric. Neither sex differences nor regional asymmetries changed with gestation-corrected age. Our results complement a growing body of work investigating the earliest neurobiological changes associated with development and suggest that asymmetry and sexual dimorphism are present at birth.

How Hot Are They? Neural Correlates of Genital Arousal: An Infrared Thermographic and Functional Magnetic Resonance Imaging Study of Sexual Arousal in Men and Women

Parada M, GĂ©rard M, Larcher K, et al. How Hot Are They? Neural Correlates of Genital Arousal: An Infrared Thermographic and Functional Magnetic Resonance Imaging Study of Sexual Arousal in Men and Women. J Sex Med 2017;xx:xxx–xxx. https://doi.org/10.1016/j.jsxm.2017.12.006

Abstract

Background: The few studies that have examined the neural correlates of genital arousal have focused on men and are methodologically hard to compare.

Aim: To investigate the neural correlates of peripheral physiologic sexual arousal using identical methodology for men and women.

Methods: 2 groups (20 men, 20 women) viewed movie clips (erotic, humor) while genital temperature was continuously measured using infrared thermal imaging. Participants also continuously evaluated changes in their subjective arousal and answered discrete questions about liking the movies and wanting sexual stimulation. Brain activity, indicated by blood oxygen level-dependent (BOLD) response, was measured using functional magnetic resonance imaging.

Outcomes: BOLD responses, genital temperature, and subjective sexual arousal.

Results: BOLD activity in a number of brain regions was correlated with changes in genital temperature in men and women; however, activation in women appeared to be more extensive than in men, including the anterior and posterior cingulate cortex, right cerebellum, insula, frontal operculum, and paracingulate gyrus. Examination of the strength of the correlation between BOLD response and genital temperature showed that women had a stronger brain-genital relation compared with men in a number of regions. There were no brain regions in men with stronger brain-genital correlations than in women.

Clinical Translation: Our findings shed light on the neurophysiologic processes involved in genital arousal for men and women. Further research examining the specific brain regions that mediate our findings is necessary to pave the way for clinical application.

Strengths and Limitations: A strength of the study is the use of thermography, which allows for a direct comparison of the neural correlates of genital arousal in men and women. This study has the common limitations of most laboratory-based sexual arousal research, including sampling bias, lack of ecologic validity, and equipment limitations, and those common to neuroimaging research, including BOLD signal interpretation and neuroimaging analysis issues.

Conclusions: Our findings provide direct sex comparisons of the neural correlates of genital arousal in men and women and suggest that brain-genital correlations could be stronger in women.

Key Words: Genital Arousal; Functional Magnetic Resonance Imaging; Sexual Arousal; Gender Differences; Thermography

Sam Rosenfeld's The Polarizers: Modern political polarization was a deliberate project carried out by Democratic and Republican activists

The Polarizers: Postwar Architects of Our Partisan Era Hardcover. Sam Rosenfeld. December 28, 2017, https://www.amazon.com/Polarizers-Postwar-Architects-Our-Partisan/dp/022640725X

Even in this most partisan and dysfunctional of eras, we can all agree on one thing: Washington is broken. Politicians take increasingly inflexible and extreme positions, leading to gridlock, partisan warfare, and the sense that our seats of government are nothing but cesspools of hypocrisy, childishness, and waste. The shocking reality, though, is that modern polarization was a deliberate project carried out by Democratic and Republican activists.

In The Polarizers, Sam Rosenfeld details why bipartisanship was seen as a problem in the postwar period and how polarization was then cast as the solution. Republicans and Democrats feared that they were becoming too similar, and that a mushy consensus imperiled their agendas and even American democracy itself. Thus began a deliberate move to match ideology with party label—with the toxic results we now endure. Rosenfeld reveals the specific politicians, intellectuals, and operatives who worked together to heighten partisan discord, showing that our system today is not (solely) a product of gradual structural shifts but of deliberate actions motivated by specific agendas. Rosenfeld reveals that the story of Washington’s transformation is both significantly institutional and driven by grassroots influences on both the left and the right.

The Polarizers brilliantly challenges and overturns our conventional narrative about partisanship, but perhaps most importantly, it points us toward a new consensus: if we deliberately created today’s dysfunctional environment, we can deliberately change it.

Friday, January 5, 2018

Intentional Fire-Spreading by “Firehawk” Raptors in Northern Australia

Intentional Fire-Spreading by “Firehawk” Raptors in Northern Australia. Mark Bonta et al. Journal of Ethnobiology 37(4):700-718. 2017, https://doi.org/10.2993/0278-0771-37.4.700

Abstract: We document Indigenous Ecological Knowledge and non-Indigenous observations of intentional fire-spreading by the fire-foraging raptors Black Kite (Milvus migrans), Whistling Kite (Haliastur sphenurus), and Brown Falcon (Falco berigora) in tropical Australian savannas. Observers report both solo and cooperative attempts, often successful, to spread wildfires intentionally via single-occasion or repeated transport of burning sticks in talons or beaks. This behavior, often represented in sacred ceremonies, is widely known to local people in the Northern Territory, where we carried out ethno-ornithological research from 2011 to 2017; it was also reported to us from Western Australia and Queensland. Though Aboriginal rangers and others who deal with bushfires take into account the risks posed by raptors that cause controlled burns to jump across firebreaks, official skepticism about the reality of avian fire-spreading hampers effective planning for landscape management and restoration. Via ethno-ornithological workshops and controlled field experiments with land managers, our collaborative research aims to situate fire-spreading as an important factor in fire management and fire ecology. In a broader sense, better understanding of avian fire-spreading, both in Australia and, potentially, elsewhere, can contribute to theories about the evolution of tropical savannas and the origins of human fire use.

Keywords: avian fire-foraging, avian fire-spreading, Black Kite, Brown Falcon, Whistling Kite

New framework for the psychological origins of human cooperation that harnesses evolutionary theories about the two major problems posed by cooperation: generating and distributing benefits

How Children Solve the Two Challenges of Cooperation. Felix Warneken. Annual Review of Psychology, Vol. 69:205-229 (January 2018), https://doi.org/10.1146/annurev-psych-122216-011813

Abstract: In this review, I propose a new framework for the psychological origins of human cooperation that harnesses evolutionary theories about the two major problems posed by cooperation: generating and distributing benefits. Children develop skills foundational for identifying and creating opportunities for cooperation with others early: Infants and toddlers already possess basic skills to help others and share resources. Yet mechanisms that solve the free-rider problem—critical for sustaining cooperation as a viable strategy—emerge later in development and are more sensitive to the influence of social norms. I review empirical studies with children showing a dissociation in the origins of and developmental change seen in these two sets of processes. In addition, comparative studies of nonhuman apes also highlight important differences between these skills: The ability to generate benefits has evolutionary roots that are shared between humans and nonhuman apes, whereas there is little evidence that other apes exhibit comparable capacities for distributing benefits. I conclude by proposing ways in which this framework can motivate new developmental, comparative, and cross-cultural research about human cooperation.

Thursday, January 4, 2018

No evidence that more physically attractive women have higher estradiol or progesterone

No evidence that more physically attractive women have higher estradiol or progesterone. Benedict C. Jones et al. bioRxiv, doi https://doi.org/10.1101/136515

Abstract: Putative associations between sex hormones and attractive physical characteristics in women are central to many theories of human physical attractiveness and mate choice. Although such theories have become very influential, evidence that physically attractive and unattractive women have different hormonal profiles is equivocal. Consequently, we investigated hypothesized relationships between salivary estradiol and progesterone and two aspects of women's physical attractiveness that are commonly assumed to be correlated with levels of these hormones: facial attractiveness (N=249) and waist-to-hip ratio (N=247). Our analyses revealed no evidence that women with more attractive faces or lower (i.e., more attractive) waist-to-hip ratios had higher levels of estradiol or progesterone. These results do not support the influential hypothesis that between-woman differences in physical attractiveness are related to estradiol and/or progesterone.

We find that virtually all core assumptions and hypothesized mechanisms of posttraumatic stress disorder lack compelling or consistent empirical support

Posttraumatic stress disorder: An empirical evaluation of core assumptions. Gerald M.Rosen, Scott O. Lilienfeld. Clinical Psychology Review, Volume 28, Issue 5, June 2008, Pages 837-868, https://doi.org/10.1016/j.cpr.2007.12.002

Abstract: The diagnosis of posttraumatic stress disorder (PTSD) rests on several core assumptions, particularly the premise that a distinct class of traumatic events is linked to a distinct clinical syndrome. This core assumption of specific etiology ostensibly distinguishes the PTSD diagnosis from virtually all other psychiatric disorders. Additional attempts to distinguish PTSD from extant conditions have included searches for distinctive markers (e.g., biological and laboratory findings) and hypothesized underlying mechanisms (e.g., fragmentation of traumatic memory). We review the literature on PTSD's core assumptions and various attempts to validate the construct within a nomological network of distinctive correlates. We find that virtually all core assumptions and hypothesized mechanisms lack compelling or consistent empirical support. We consider the implications of these findings for conceptualizing PTSD in the forthcoming edition of the American Psychiatric Association's diagnostic manual.

Keywords: Posttraumatic stress disorder (PTSD); Validity; Construct validity; Discriminant validity; Traumatic events;Criterion A; Symptom criteria

Whereas humans already prefer helpers by 3 months of age, bonobos favor hinderers, maybe from attraction to dominant individuals

Bonobos Prefer Individuals that Hinder Others over Those that Help. Christopher Krupenye, Brian Hare. Current Biology, https://doi.org/10.1016/j.cub.2017.11.061

Highlights
•    Bonobos discriminate between agents that either help or hinder others
•    Whereas humans already prefer helpers by 3 months of age, bonobos favor hinderers
•    Bonobos’ preference may stem from attraction to dominant individuals
•    This form of prosocial preference may be derived in humans

Summary: Humans closely monitor others’ cooperative relationships [1 ;  2]. Children and adults willingly incur costs to reward helpers and punish non-helpers—even as bystanders [3; 4 ;  5]. Already by 3 months, infants favor individuals that they observe helping others [6; 7 ;  8]. This early-emerging prosocial preference may be a derived motivation that accounts for many human forms of cooperation that occur beyond dyadic interactions and are not exhibited by other animals [9 ;  10]. As the most socially tolerant nonhuman ape [11; 12; 13; 14; 15; 16 ;  17] (but see [18]), bonobos (Pan paniscus) provide a powerful phylogenetic test of whether this trait is derived in humans. Bonobos are more tolerant than chimpanzees, can flexibly obtain food through cooperation, and voluntarily share food in captivity and the wild, even with strangers [ 11; 12; 13; 14; 15; 16 ;  17] (but see [18]). Their neural architecture exhibits a suite of characteristics associated with greater sensitivity to others [ 19 ;  20], and their sociality is hypothesized to have evolved due to selection against male aggression [ 21; 22 ;  23]. Here we show in four experiments that bonobos discriminated agents based on third-party interactions. However, they did not exhibit the human preference for helpers. Instead, they reliably favored a hinderer that obstructed another agent’s goal (experiments 1–3). In a final study (experiment 4), bonobos also chose a dominant individual over a subordinate. Bonobos’ interest in hinderers may reflect attraction to dominant individuals [24]. A preference for helpers over hinderers may therefore be derived in humans, supporting the hypothesis that prosocial preferences played a central role in the evolution of human development and cooperation.

Keywords: prosocial preference; prosocial motivation; social evaluation; third-party knowledge; cooperation; human evolution; human development; bonobo; great ape; reputation attribution


Historians and students asked to check on-line information often fell victim to easily manipulated features of websites, such as official-looking logos and domain names

Wineburg S., Breakstone J., McGrew S., Ortega T. (2018) Why Google Can’t Save Us. In: Zlatkin-Troitschanskaia O., Wittum G., Dengel A. (eds) Positive Learning in the Age of Information, pp 221-228, https://doi.org/10.1007/978-3-658-19567-0_13

Abstract: The Stanford History Education Group has prototyped, field tested, and validated a bank of assessments that tap civic online reasoning—the ability to judge the credibility of the information that floods young people’s smartphones, tablets, and computers. We developed 56 tasks and administered them to students across 12 states. In total, we collected and analyzed 7,804 student responses. From pre-teens to seniors in college, students struggled mightily to evaluate online information. To investigate how people determine the credibility of digital information, we sampled 45 individuals: 10 PhD historians, 10 professional fact checkers, and 25 Stanford University undergraduates. We observed them as they evaluated websites and engaged in open web searches on social and political issues. Historians and students often fell victim to easily manipulated features of websites, such as official-looking logos and domain names.

In 1994, 16 pct of Democrats had a “very unfavorable” view of the GOP, now are 38 pct. Then, 17 pct of Republicans had a “very unfavorable” view of Democrats, now it is 43 pct. Mutual opinion: closed-minded, dishonest, immoral, lazy, unintelligent

The Retreat to Tribalism. David Brooks
The New York Times, Jan 1, 2018
https://www.nytimes.com/2018/01/01/opinion/the-retreat-to-tribalism.html

photo removed

[...]

[...] N.Y.U.’s Jonathan Haidt [listed] in a lecture delivered to the Manhattan Institute in November [...] some of the reasons centrifugal forces may now exceed centripetal: the loss of the common enemies we had in World War II and the Cold War, an increasingly fragmented media, the radicalization of the Republican Party, and a new form of identity politics, especially on campus.

Haidt made the interesting point that identity politics per se is not the problem. Identity politics is just political mobilization around group characteristics. The problem is that identity politics has dropped its centripetal elements and become entirely centrifugal.

[...]

From an identity politics that emphasized our common humanity, we’ve gone to an identity politics that emphasizes having a common enemy. On campus these days, current events are often depicted as pure power struggles — oppressors acting to preserve their privilege over the virtuous oppressed.

“A funny thing happens,” Haidt said, “when you take young human beings, whose minds evolved for tribal warfare and us/them thinking, and you fill those minds full of binary dimensions. You tell them that one side in each binary is good and the other is bad. You turn on their ancient tribal circuits, preparing them for battle. Many students find it thrilling; it floods them with a sense of meaning and purpose.”

The problem is that tribal common-enemy thinking tears a diverse nation apart.

[...]

In 1994, only 16 percent of Democrats had a “very unfavorable” view of the G.O.P. Now, 38 percent do. Then, only 17 percent of Republicans had a “very unfavorable” view of Democrats. Now, 43 percent do. When the Pew Research Center asked Democrats and Republicans to talk about each other, they tended to use the same words: closed-minded, dishonest, immoral, lazy, unintelligent.

[...]

Over the past two generations, however, excessive individualism and bad schooling have corroded both of those sources of cohesion.

In 1995, the French intellectual Pascal Bruckner published “The Temptation of Innocence,” in which he argued that excessive individualism paradoxically leads to in-group/out-group tribalism. Modern individualism releases each person from social obligation, but “being guided only by the lantern of his own understanding, the individual loses all assurance of a place, an order, a definition. He may have gained freedom, but he has lost security.”

In societies like ours, individuals are responsible for their own identity, happiness and success. “Everyone must sell himself as a person in order to be accepted,” Bruckner wrote. We all are constantly comparing ourselves to others and, of course, coming up short. The biggest anxiety is moral. We each have to write our own gospel that defines our own virtue.

The easiest way to do that is to tell a tribal oppressor/oppressed story and build your own innocence on your status as victim. Just about everybody can find a personal victim story. Once you’ve identified your herd’s oppressor — the neoliberal order, the media elite, white males, whatever — your goodness is secure. You have virtue without obligation. Nothing is your fault.

“What is moral order today? Not so much the reign of right-thinking people as that of right-suffering, the cult of everyday despair,” Bruckner continued. “I suffer, therefore I am worthy. … Suffering is analogous to baptism, a dubbing that inducts us into the order of a higher humanity, hoisting us above our peers.”

[...]

A version of this op-ed appears in print on January 2, 2018, on Page A15 of the New York edition with the headline: The Retreat To Tribalism.

Lower resting heart rate predicts the ability to detect deception: The rate indicates the level of autonomous arousal, the level of arousal influences information processing

Resting heart rate: A physiological predicator of lie detection ability. Geoffrey Duran, Isabelle Tapiero, George A. Michael. Physiology & Behavior, https://doi.org/10.1016/j.physbeh.2018.01.002

Highlights
•    An investigation of the ability to detect deception is proposed.
•    Resting heart rate predicts the ability to detect deception.
•    Resting heart rate indicates the level of autonomous arousal.
•    The level of arousal influences information processing.
•    Resting heart rate helps to distinguish between poor and good deception detectors.

Abstract: This study explored a psychophysiological measure, Resting Heart Rate (RHR), as a predicator of the ability to detect lies. RHR was recorded for 1 min and followed by a deception detection task in which participants were required to judge 24 videos of people describing a real-life event (50% truthful, 50% deceptive). Multiple regression analyses showed that, among other individual characteristics, only RHR predicted the ability to distinguish truth from lies. Importantly, the prediction was negative. This result suggests that the higher the RHR, the worse the detection of lies. Since the RHR is considered to be a physiological trait indexing autonomous arousal, and since high-arousal states can lead to restricted attentional resources, we suggest that limited selection and utilization of cues due to restricted attention is the reason why higher RHR leads to poor deception detection.

Keywords: Detection of deception; Resting heart rate; Arousal; Cue utilization theory

Drawing on an analysis of 1.2 million vehicle movements, we show that reduced road/street illuminance levels are associated with increased car speeding

Blind haste: As light decreases, speeding increases. Emanuel de Bellis et al. PLOS One, https://doi.org/10.1371/journal.pone.0188951

Abstract: Worldwide, more than one million people die on the roads each year. A third of these fatal accidents are attributed to speeding, with properties of the individual driver and the environment regarded as key contributing factors. We examine real-world speeding behavior and its interaction with illuminance, an environmental property defined as the luminous flux incident on a surface. Drawing on an analysis of 1.2 million vehicle movements, we show that reduced illuminance levels are associated with increased speeding. This relationship persists when we control for factors known to influence speeding (e.g., fluctuations in traffic volume) and consider proxies of illuminance (e.g., sight distance). Our findings add to a long-standing debate about how the quality of visual conditions affects drivers’ speed perception and driving speed. Policy makers can intervene by educating drivers about the inverse illuminance‒speeding relationship and by testing how improved vehicle headlights and smart road lighting can attenuate speeding.