Category Archives: Neuroscience

Neuroscience

Genes and Neurotransmitters Influence Investment Risk-Taking: Implications for Taking Career Risks?

Camelia Kuhnen

Camelia Kuhnen

Brian Knutson

Brian Knutson

Camelia Kuhnen, then of Stanford with her Stanford colleague Brian Knutson and Vanderbilt’s Gregory Samanez-Larkin posit a small but meaningful genetic basis to risk-averse financial investing, providing a biological basis for findings that women hedge fund managers outperformed male counterparts.

Volunteers with two short serotonin transporter genes (5-HTTLPR) reported that they tend to worry, and this pattern was associated with chosing less risky investment choices.

Gregory Samanez-Larkin

Gregory Samanez-Larkin

“Short allele carriers” also showed higher levels of the personality trait “neuroticism,” but no significant difference in cognitive skills, education, or financial status.
Kuhnen estimates that less than 30 percent of variance in risk-taking is attributable to short 5-HTTLPR, and the remaining difference is derived from experience, culture, education, and social environment.

Kuhnen and Knutson reported the neural basis of financial risk taking using event-related fMRI.
They observed that the nucleus accumbens was activated before volunteers made risky choices and made risk-seeking mistakes.
In contrast, they found that the anterior insula was activated before risk-free choices and risk-aversion mistakes.

They proposed that different neural circuits are associated with differing emotions as volunteers anticipate gain or loss associated with financial choices.
This emotional activation “signature” can lead to specific investment choices, favoring or avoiding risk, and may lead to investing mistakes.

In unpublished research, Kuhnen found that short-allele carriers showed increased anxiety before making a decision in a trial-and-error risk discovery task, but reacted no differently than long-allele carriers when they observed a negative outcome.

She noted that volunteers differ in how they anticipate and react to a potential decision before they make it rather that in their reactions to actual outcomes of investment decisions.

Joan Chiao

Joan Chiao

Kuhnen, now at Northwestern collaborated with Northwestern colleague Joan Chiao to investigate the impact of both the 5-HTTLPR gene and the DRD4, gene, which regulates dopamine transmission.
These genes and their related neurotransmitters have been linked to emotional behavior, anxiety and addiction.

Their research replicated Kuhnen’s earlier finding that individuals with two short 5-HTTLPR alleles take 28% less risk than people with other combinations, and they demonstrated that the double DRD4 7 allele carriers took 25% more risk than people with other combinations.
They conclude that serotonin is associated with risk-averse investment choices, whereas dopamine is associated with riskier choices.

Kuhnen and Chiao argue that risky investment behavior shares commonalities with other risky behaviors like drug use, gambling, unsafe sex, dangerous physical and social pursuits, and more.

-*How do you determine the right amount of risk to undertake in career development and financial investing?

Related Posts

Twitter:  @kathrynwelds
Google+:
LinkedIn Open Group Brazen Careerist
Facebook Notes:

©Kathryn Welds

Resilient Performance Enhanced by Warmth, Touch

John Bargh

John Bargh

Idit Shalev

Idit Shalev

John Bargh of Yale and Idit Shalev now of Ben Gurion University found a bi-directional causal relationship between physical warmth and social warmth.

They used social affiliation as a proxy for social warmth; Loneliness and interpersonal rejection were examples of social coldness.

Results from their four studies concluded that feelings of social warmth or coldness can be induced by experiences of physical warmth or coldness, and vice versa.

In addition, Bargh and Shalev demonstrated that volunteers unconsciously self-regulated feelings of social warmth by applying physical warmth.

This type of self-regulation is a form of exerting control over the environment and managing feelings.
Self-management strategies reinforce people’s perception that they have some control over choices and environment.

Paul Zak

Paul Zak

Kerstin Uvnas-Moberg

Kerstin Uvnas-Moberg

Paul Zak and Kerstin Uvnas Moberg argue that touch can be another self-regulation strategy because it activates the vagus nerve and the release of oxytocin, resulting in increased feelings of interpersonal warmth, compassion, and collaboration.

Both of these self-management strategies – inducing warmth and engaging in touch – can increase task performance and reduce the likelihood that people will experience depression.

Carl Honore

Carl Honore

Martin Seligman

Martin Seligman

Canadian Journalist Carl Honore provided evidence in Martin Seligman’s important finding in studies of “learned helplessness,” that when people have a sense of control – whether real or a “positive illusion” – it can have a salutary effect on performance and mood.

-*How do you self-regulate performance and mood?

The Slow FixMartin Seligman-HelplessnessRelated Posts

Twitter:   @kathrynwelds
Google+:
LinkedIn Open Group Psychology in Human Resources (Organisational Psychology)
Facebook Notes:

©Kathryn Welds

How Sure are You of Your “Memories”? Suggestibility, Insertion, and Construction of Recall

Elizabeth Loftus

Elizabeth Loftus

Experimental psychologist, Elizabeth Loftus investigated memory and its quirks, such as mistaken eyewitness testimony and “repressed memory” of pedophilia in laboratory and naturalistic settings for nearly 40 years.

William Saletan

William Saletan

William Saletan of Slate replicated one of Loftus’s experiments in memory insertion by using digitally-altered photos by developing five images of events that did not actually occur:

  • Sen. Joe Lieberman voting to convict President Clinton at his impeachment trial
  • Vice President Cheney rebuking Sen. John Edwards in their debate for mentioning Cheney’s lesbian daughter
  • President Bush relaxing at his ranch with Roger Clemens during Hurricane Katrina
  • Hillary Clinton using Jeremiah Wright in a 2008 TV ad
  • President Obama shaking hands with Iranian President Mahmoud Ahmadinejad

These images were mixed with photos of actual events:

  • 2000 Presidential election recount in Florida
  • Colin Powell’s prewar assessment of Iraq’s weapons of mass destruction
  • 2005 congressional vote to intervene in the Terri Schiavo’s “right-to-die” case.

Each participant viewed three true incidents and one randomly selected fake incident, and was asked whether the subject remembered each one.
Next, each volunteer was informed that one of the incidents was false and was asked select the fake.

Slate’s results replicated the trend observed by Loftus:  Fewer than half of the volunteers correctly detected fake photos and many “misremembered” fake photos by giving detailed explanations of their recollections of events that did not actually occur and photos that did not exist before the experiment.

Frederic Bartlett

Frederic Bartlett

The findings validate psychologist Frederic Bartlett’s claim wrote almost a century ago at Cambridge University:

Remembering is not the re-excitation of innumerable fixed, lifeless and fragmentary traces.
It is an imaginative reconstruction, or construction, built out of the relation of our attitude towards a whole active mass of organized past reactions or experience.

Rosalind Cartwright

Rosalind Cartwright

More recently, sleep researcher Rosalind Cartwright summarized Bartlett’s point by concluding that “Memory is never a precise duplicate of the original… it is a continuing act of creation,” and artist Austin Kleon translated these concepts into current vernacular:  “you are a mash-up of what you let into your life.”

Austin Kleon

Austin Kleon

Philippa Perry

Philippa Perry

British psychotherapist Philippa Perry points to the logical conclusion from these observations in advising, “Be careful which stories you expose yourself to. … The meanings you find, and the stories you hear, will have an impact on how optimistic you are…

-*How do you monitor the accuracy of your memories?
-*How do you detect “memory mash-ups”?
-*How do you select the experiences from which you form memories?

Related Posts:

Twitter:   @kathrynwelds
Google+
LinkedIn Open Group Diversity
Facebook Notes:

©Kathryn Welds

Beware of Seeking, Acting on Advice When Anxious, Sad

Just as wise grandmothers advise, it’s best to avoid decisions when upset, anxious, or sad.

Maurice Schweitzer

Maurice Schweitzer

Maurice Schweitzer and Alison Wood Brooks of Wharton and Harvard Business School’s Francesca Gino validated Grandmother Wisdom in eight experiments that demonstrated anxiety’s impact on lowering self-confidence, impairing information processing, and impeding ability to distinguish advice from neutral advisors and those with a conflict of interest.

Alison Wood Brooks

Alison Wood Brooks

They found that people experiencing anxiety tend to seek advice and act on it, but they are less able to differentiate poor advice from valid recommendations, and these results are applicable to making decisions about crucial medical treatment, financial investments, or even guidance counseling.

Francesca Gino

Francesca Gino

The team evoked anxious feeling among volunteers by presenting potentially frightening film clips and music, and asked them to judge a person’s weight based on a photograph or number of coins in a jar or solve a complex math problem.

Participants were offered money for correct judgments, and the opportunity to receive advice from others when they were uncertain.
Those who heard the scary music or saw the alarming film clip rated themselves as less confident of their decision, and were more likely to ask others for advice.
These effects were not observed when volunteers were shown a film clip that could provoke anger.

Schweitzer, Brooks, and Gino concluded that people vary in their receptivity to advice based on:

  • Advisor’s characteristics, such as expertise, consistent with Cialdini’s observation

    Robert Cialdini

    Robert Cialdini

  • Perceived difficulty of the decision
  • Decision maker’s emotional state when receiving advice

The researchers advised decision-makers to:

  • Monitor their internal states for anxiety
  • Use feedback from multiple sources when making important decisions
  • Work toward developing increased self-confidence
  • Evoke calm state, often possible with systematic breathing or mindful attention and equanimity
Catherine Hartley

Catherine Hartley

Catherine Hartley, then of New York University and Elizabeth Phelps of New York University contributed to the neuroeconomic analysis of anxiety’s impact on decision- making when they reported that brain structures responsible for regulating fear and anxiety are also involved in economic decision-making under uncertain conditions.

Elizabeth Phelps

Elizabeth Phelps

Specifically, the amygdala is crucial in learning, experiencing, and regulating both fear and anxiety and it is also implicated in decision-making in situations of potential loss.
The prefrontal cortex is specialized in controlling fear and is also involved in decisions containing risk elements.

Hartley and Phelps suggest that techniques for altering fear and anxiety may also improve economic decisions-making.

Rajagopal Raganathan

Rajagopal Raganathan

Rajagopal Raghunathan, then of New York University and Michel Tuan Pham of Columbia University demonstrated the same connection between anxiety and making decisions about gambling and job selection.

Michel Tuan Pham

Michel Tuan Pham

They conducted three experiments and found that sad individuals select high risk / high-reward gambling and job options, whereas anxious individuals are biased in favor of low-risk / low-reward options.

Raghunathan and Pham posit that anxiety tends to motivate people to reduce uncertainty whereas sadness moves people to replace rewards.
They suggest suggesting two different decision biases related to mood states.

Raghunathan and Pham add to Schweitzer, Brooks, and Gino’s recommendations for mitigating decision bias:

  • “Monitor feelings”
  • Consider alternate options
  • Speculate on future moods and preferences if each option were selected: “What would I feel better about . . .?

-*How do you mitigate the potential decision bias when anxious or sad?

Related posts:
Memorable Business Stories: Ideas and Numbers
Business Influence as “Enchantment”

Health Benefits of Positive Emotions, Outlook

Barbara Fredrickson

Barbara Fredrickson

Barbara Frederickson of University of North Carolina posits that negative emotions aid human survival by narrowing and limiting people’s perceived range of possible actions, whereas positive emotions enhance survival by “broadening and building” options for action.

She detailed her lab-based research in Positivity: Top-Notch Research Reveals the 3 to 1 Ratio That Will Change Your Life and her talk at UC Berkeley Greater Good Science CenterPositivity

Her lab’s findings suggest that positive thinking expands awareness and perception of the surrounding world, so can lead to innovative solutions to problems.

She suggests intentionally implementing a “broaden-and-build” approach to emulate this expanded view: Choose a degree of focus and perspective depending on requirements.

For example, to garner more clout in a discussion, she suggests involving more people who will provide support.
Similarly, to mitigate negative thinking or “tunnel vision,” think more broadly by viewing “the big picture.”

Rosabeth Moss Kanter of Harvard Business School referred this perceptual shift as “zooming in” and “zooming out”, depending on the perspective requires.

Rosabeth Moss Kanter

Rosabeth Moss Kanter

Frederickson found that people who experience positive thinking are:

* Healthier
* More generous
* More productive
* Bounce back from adversity more quickly
* Are better managers of people
* Live longer
than those with a bleaker outlook.

Fredrickson’s research implies that positive emotions can mitigate the cardiovascular effects of negative emotions and stress.

In these activated conditions, people generally have increased heart rate, higher blood sugar, greater immunosuppression.
These conditions tax physical systems and can lead to life-threatening illnesses like coronary disease.

To mitigate these negative health consequences, Fredrickson recommends observing positive emotional experiences of joy, gratitude, serenity, interest, hope, pride, amusement, inspiration, awe, and love.
Besides noticing these experiences, she advocates writing and meditating about these to increase grateful awareness.

In addition, Frederickson echoes common wisdom:

  • Spend time in nature to appreciate the natural world
  • Develop interests
  • Invest time in relationships
  • Reduce exposure to negative news
  • Practice kindness
  • Dispute negative thoughts and replace them with more positive, realistic thoughts.

Frederickson extends her research agenda on positive emotions in her latest book, Love 2.0: How Our Supreme Emotion Affects Everything We Feel, Think, Do, and Become. Love 2-0

She broadens the concept of love to suggest that love – or an intense connection – occurs when people share positive emotion.
This lead to alignment between people’s biochemistries,  particularly the release of oxytocin and vagal nerve functioning.
Related emotions and behaviors synchronize and mirror each other, resulting in shared interest in mutual well-being  in a three-phase  ”positivity resonance.”

She argues that love “literally changes your mind.
It expands your awareness of your surroundings, even your sense of self.
The boundaries between you and not-you – what lies beyond your skin – relax and become more permeable.
While infused with love, you see fewer distinctions between you and others.”

Fredrickson argues that this intense connection requires physical presence, and cannot be replaced by existing digital media — reinforcing her recommendation to invest in relationships with others.

-*What practices enable you to cultivate and sustain positive emotions?

Related posts:

Twitter:  @kathrynwelds
Google+:
LinkedIn Open Group Psychology in Human Resources (Organisational Psychology)
Facebook Notes:

©Kathryn Welds

Practice Outweighs Talent in Developing Expert Performance

Daniel Coyle

Daniel Coyle

Journalist Daniel Coyle consolidated neuroscience research with stories of expert performers in The Talent Code: Greatness Isn’t Born. It’s Grown. Here’s How .
He distilled three principles that enable performance development across a variety of skills and fields: The Talent Code

“Deep” Practice, which includes daily repetition for up to several hours, observation, and corrective feedback by an expert to develop the myelin of “muscle memory” and increase neural signal strength, speed and accuracy.
This practice must be characterized by focused attention to mimic expert performance, reduce errors, and willingness to practice at increasingly more challenging levels.

Ignition, or commitment based on “unconscious desires” and “triggered by primal cues”

Master Coaching, in which to expert teacher encourages “ignition” and “deep” practice with:

1. Task-specific knowledge explained with vivid examples and meaningful metaphors
2. Perceptive tailoring to each student’s skills and needs
3. “The GPS Reflex”, or providing timely, specific guidance
4. “Theatrical Honesty,” or ability to empathically connect with students

K Anders Ericcson

K Anders Ericsson

Related Posts review foundational research by K. Anders Ericsson, who suggested that expert performance requires “10000 hours of practice.”

Geoff Colvin

Geoff Colvin

Talent is Overrated

Talent is Overrated

Like Coyle, Geoff Colvin argues that Talent is Overrated and can be eclipsed by systematic practice with corrective coaching.

Paul Herr’s Primal Management: Unraveling the Secrets of Human Nature to Drive High Performance also argues that motivation in the workplace, as in Coyle’s broader discussion of performance and motivation, is based on the “evolutionary psychology” of “tribal survival” and includes:

Paul Herr

Paul Herr

  • Self-Protection, the foundation of Maslow’s hierarch of higher-order needs

    Abraham Maslow

    Abraham Maslow

  • Cooperation, collaborative work in groups fulfills people’s social desires to belong to a group working toward a shared goal
  • Skill deployment, opportunity to develop skills and experience satisfaction with progressive improvement
  • Competency, opportunity to demonstrate skills and receive social recognition for these improvements
  • Innovation, based on people’s curiosity and desire to make in processes, systems, ideas, Primal Managementevents

-*How do you develop your talents?

-*Where do you find expert coaching?

-*How do you persist in “Deep Practice” even when it’s “no fun”?

Related Posts

Twitter  @kathrynwelds
Google+
LinkedIn Open Group Psychology in Human Resources (Organisational Psychology)
Facebook Notes

©Kathryn Welds

Arc of Attentional Focus: Has Someone Picked Your Pocket While You Experienced “Inattentional Blindness”?

Apollo Robbins

Apollo Robbins

Apollo Robbins, son of a Baptist pastor whose half-brothers were street pick-pockets and shoplifters, demonstrates glitches in human perception and cognition in his interactive Las Vegas show as “The Gentleman Thief.”

He tells his “targets” that he is about to steal from them, then uses visual illusions, proximity manipulation, diversion techniques, and attention control to achieve his goal, to observers’ astonishment.
Robbins returns belongings, which kept him out of trouble when he lifted possessions of former US President Jimmy Carter’s Secret Service agents.

In addition to the entertaining curiosity of Robbins’ feats, his skill is relevant to improving perceptual skills in normal and cognitively-impaired people, and reducing traffic and industrial accidents as well as safety and security violations.

He overcame congenital motor-skill deficits by practicing his craft and notes that the key to his feats is monitor the focus of a target’s attention: “If a person is focused elsewhere, a thief can put his whole hand in [a pocket] and steal.”

Kim Silverman

Kim Silverman

Like Kim Silverman, Research Scientist at Apple, Robbins creates “false assumptions… that look like reality and take advantage of those…I’ll put my hand in their pocket, and when it comes out, they’re expecting that I would have stolen something. Then I create a ruse, by moving my hand in a half-circle. Their eyes will instinctively chase the movement…

The U.S. Department of Defense accesses Robbins’ skills at its Special Operations Command research-and-training facility at Yale University, where he an adjunct professor — despite his non-collegiate education.

Barton Whaley

Barton Whaley

Defense application of Robbins’ perceptual manipulation skills were foreshadowed by Barton Whaley of the Naval Postgraduate School and Susan Stratton Aykroyd in their Textbook of Political-Military Counterdeception.

Their historical survey of deception and counter-deception practices asserted that conjurors’ theories and principles were substantially more advanced than those used by U.S. political or military intelligence analysts in the 1970s.

Stephen Macknik

Stephen Macknik

Neuroscientists Stephen Macknik and Susana Martinez-Conde of Barrow Neurological Institute collaborated with Robbins on Sleights of Mind: What the Neuroscience of Magic Reveals about Our Everyday Deception.

Susana Martinez-Conde

Susana Martinez-Conde

These and other cognitive scientists posit that studying the common cognitive errors that lead to perceptual illusions of “magic” can suggest diagnostic and treatment methods for cognitive deficits, including attention deficits resulting from brain trauma, autism, ADHD (attention-deficit hyperactivity disorder), and Alzheimer’s disease. Sleights of  Mind

Insights from magic performance may help patients “trick” themselves into focusing on the most important aspects of their environment, while suppressing distractions that cause confusion, disorientation, and “inattentional blindness” — focusing so intently on a single task that one fails to notice things in plain sight.

Richard Wiseman

Richard Wiseman

Psychologist and magician Richard Wiseman of the University of Hertfordshire demonstrated this type of perceptual failure when viewers typically fail to notice environmental changes when focusing on a card trick. 
Similarly, Transport of London’s Public Service Announcement reminds viewers that it’s easy to miss things you’re not expecting in “Did you see the Moonwalking Bear?

Wiseman’s popular book on the same theme argues that people can be in guard for perceptual blindness and “recognise hidden opportunities in your life,” whereas his academic work offers Magic in Theory: an introduction to the theoretical and psychological elements of conjuring.

Daniel Simons

Daniel Simons

Daniel Levin

Daniel Levin

Daniel Simons of the University of Illinois and Daniel Levin of Vanderbilt University demonstrated “seeing without seeing” in similar experiments to the now-classic video of people passing a basketball as woman in a gorilla suit walked through the action.

Simons collaborated with Christopher Chabris at Harvard University and reported that half the observers said they did not see the gorilla when they were counting the number of ball passes by one team.

Christopher Chabris

Christopher Chabris

However, the same people easily recognized the gorilla when they were not focusing on a distraction task.

The Invisible Gorilla

The Invisible Gorilla

This finding reinforces research reports of most people’s inability to effectively multitask based on limited capacity – about four items — to hold a visual scene in short-term memory (VSTM), according to Edward Vogel and Maro Machizawa of the University of Oregon and René Marois and J. Jay Todd of Vanderbilt University.

Edward Vogel

Edward Vogel

Macknik and Martinez-Conde reported empirical results supporting Robbins’s observation that the eye will follow an object moving in an arc without looking back to its point of origin.
In contrast, when an object moves in a straight line, the eye tends to return to the point of origin. 

Rene Marois-J Jay Todd

Rene Marois-J Jay Todd

Robbins is a co-author of the scholarly article in Frontiers in Human Neuroscience, which compared volunteers’ eye movement patterns while watching a video of him performing a coin trick in which he moved his hand away in an arc or in a straight line.

The research team concluded that this perceptual principle is “explained by the differential engagement of the smooth pursuit and the saccadic oculomotor systems.”
They found that curved motions may be more salient, novel, and informative than predictable linear edges, so attract greater attention.

Gustav Kuhn

Gustav Kuhn

Ronald Rensink

Ronald Rensink

Gustav Kuhn of University of London collaborated with magician Alym Amlani and Ronald Rensink of University of British Columbia to classify cognitive, perceptual, and physical contributors Towards a Science of Magic:

  • Physical misdirection. Most people, though not those with cognitive impairments like autism, typically follow a magician’s gaze or gesture in “joint attention”
  • Psychological misdirection can be achieved with a casual motion  that may be critical to the trick, or prolonging suspense to distract from the trick’s mechanics
  • Optical illusions can distort the true size of an object
  • Cognitive illusions can prolong an image after the object has been removed
  • Physical force and mental force can influence “freely chosen” cards or other objects in magic tricks

Perceptual and cognitive illusions can cause people not to see things that are clearly present, which can lead to overlooking opportunities, interpersonal cues, and more seriously, to experiencing traffic accidents and victimization by criminals.

Mindful awareness is one countermeasure to help people attend to various aspects of the present moment, to more attentively experience opportunities and relationships while mitigating potential problems.

-*How to you maintain focus to prevent “inattentional blindness”?

Related Posts

——

Twitter:    @kathrynwelds
Google+:
LinkedIn Open Group Stanford Social Innovation Review
Facebook Notes:

©Kathryn Welds

Chronotypes: Sleep “Fingerprints,” “Social Jet Lag,” and Health

-*Are you out of sync with socially-defined time at work and home?

Most people require about one hour of sleep for every two hours awake, and each hour of missed sleep results in deeper sleep until the “sleep debt” is resolved.
Health and safety problems of varying severity ensue when the sleep debt is unresolved.

Till Roenneberg

Till Roenneberg

Till Roenneberg of Ludwig-Maximilians-University Munich investigated these health consequences by studying variances individual sleep “chronotypes,” or the amount of elapsed time until a person reaches midsleep,”  the midpoint between average bedtime when not determined by schedule requirements and waking time.

His Internal Time: Chronotypes, Social Jet Lag, and Why You’re So Tired reported one less-known health consequence of discrepant chronotypes – greater likelihood of smoking. Internal Time
Roenneberg found that greater than 60 percent of those with more than five hours social jet lag are smokers and they have greater difficulty changing this habit than those with less social jet lag.

David Randall

David Randall

Journalist David K. Randall experienced an episode of sleepwalking and documented his quest to learn more about sleep in his Dreamland: Adventures in the Strange Science of Sleep.
In it, he points out that sleep is crucial for muscle regeneration and long-term memory formation, and conversely, sleep loss interferes with these critical functions.

Other negative consequences of sleep disruption are even more dire.Dreamland
He reported that depression rates are forty times higher for people with insomnia than those without sleep problems, and that sleep apnea causes 38,000 fatal heart attacks and strokes in the United States each year.

The difference between the personal chronotype and socially-defined time can be considered “social jet lag” that can lead to chronic exhaustion.
Roenneberg calculates that more than 40 percent of the Central European population experiences more than two hours of social jet lag, which can lead to increased errors at work and in operating equipment like automobiles. These consequences can be critical when the work involves public safety in transportation and health care settings.

Adolescents generally experience considerable social jet lag because their average midsleep point is later than that of many adults, and is incompatible with typical school start times.
This is because typical adolescent brains release the hormone melatonin around eleven o’clock at night until after the seasonal sunrise.
In contrast, adults, who set school schedules, have minimal levels of melatonin in their bodies when they wake in the morning, so they are more likely to feel and act alert in the early morning.

Sleep, then, has both physiological and cultural determinants, as Roenneberg showed in his analysis of agrarian areas which may not have such technologies as electric lighting, Day Light Saving Time, or work-related reasons for early rising.
These people typically go to sleep earlier and awake earlier than urban dwellers, and have significantly different midsleep points than people in cities.

A. Roger Ekirch

A. Roger Ekirch

Historian A. Roger Ekirch of Virginia Polytechnic Institute and State University argues in At Day’s Close: Night in Times Past, that before the Industrial Revolution, the typical sleep pattern was “segmented sleep” (also known as divided sleep, bimodal sleep pattern, or interrupted sleep).

People slept for two or more periods (called “first sleep” or “dead sleep” and “second sleep” or “morning sleep”) in medieval England, punctuated by a period of wakefulness.
Similar terms are found in terms French and Italian languages and among the Tiv of Nigeria.

At Days CloseHe argues that this is the natural pattern of human sleep, and is important in regulating stress.
If this is accurate, it would change western medical diagnosis of sleep disorders and might change expectations of “normal” sleep patterns for optimal health and productivity.

Ekirch’s review of historical records suggests that agrarian people were exhausted after field labor, so they would eat and go to sleep quickly after stopping work.
They would later awaken later to pray, reflect, have sex, perform manual labor, interpret dreams, visit neighbors, or engage in petty crime.
Scholars, in contrast, used this time for loftier pursuits -  to write without interruption.

-*How do you manage segmented sleep and social jet lag?

Related post:  Kept Up at Night by Intrusive Thoughts of Work: Elusive Sleep

Twitter:  @kathrynwelds
Google+
LinkedIn Open Group The Executive Coach
Facebook Notes:

©Kathryn Welds

Useful Fiction: Optimism Bias of Positive Illusions

Tali Sharot

Tali Sharot

Tali Sharot of University College London investigated people’s tendency toward unsubstantiated optimism after she observed this bias in her neuropsychological experiments on memory processes of envisioning future events and consequences.

Shelley Taylor

Shelley Taylor

She, like Shelley Taylor of UCLA decades before, argued that this bias was an evolutionary adaptation that enabled people to survive under difficult conditions.  Sharot added to Taylor’s work by suggesting that a majority of people demonstrate the optimism bias by a margin of 5:3.3.

Related Post:
Oxytocin Receptor Gene’s Link to Optimism, Self-Esteem, Coping with Stress

The Optimism BiasSharot’s The Optimism Bias: A Tour of the Irrationally Positive Brain
compares optimism bias to other perceptual illusions, such as sometimes-fatal spatial disorientation among airplane pilots and other frequently-cited optical illusions like “Young Lady or Old Woman”, “Vase or Two Profiles”, and Thatcher illusion.

An example of optimism bias is the well-documented “superiority illusion”, that most people rate their skills, knowledge, and tendencies as above average in a variety of dimensions.

Ellen Langer

Ellen Langer

Another example was identified in 1975 by Ellen Langer of Harvard, who suggested that a pervasive “illusion of control” causes most people to overestimate their ability to control events, even those over which they have no influence.
This cognitive bias has been suggested as prevalent among “problem gamblers” and those who believe in paranormal phenomena.

Elizabeth Phelps

Elizabeth Phelps

Sharot and Elizabeth Phelps of New York University extended Taylor’s early work with neuropsychological research, and reported that the brain’s frontal cortex communication with the posterior hippocampus enables people to envision future possibilities and events.

They observed amygdala and the rostral anterior cingulate cortex activity when people demonstrate the optimism bias and noted that malfunctions in these brain areas are associated with a bias toward pessimism and related depression.

Lauren Alloy

Lauren Alloy

These findings were foreshadowed by Lauren Alloy of Temple University and Lyn Abramson of University of Wisconsin in their 1979 study, which found that people with depression are better able to predict future events accurately, whereas people not burdened with depression have inaccurately optimistic predictions.

Lyn Abramson

Lyn Abramson

“Depressive realism,” just as optimism bias can actually influence or alter future outcomes, as demonstrated in Robert Rosenthal’s classic Pygmalion in the Classroom study and “self-fulfilling prophecy,” leading to the idea that “perception is reality.”

Robert Rosenthal

Robert Rosenthal

Though inaccurate, optimism bias has positive effects. It has been observed to:

  • Reduce perceived stress
  • Improve physical health
  • Increase life span
  • Increase likelihood of people following recommended health practices like exercising, following low-fat diets, taking vitamins.

Sharot suggested that increasing awareness of optimism bias can help people enjoy the benefits of this positive illusion while watching for pitfalls of unrealistic optimism.

-*How do you capitalize on the optimism bias and mitigate its drawbacks?

Sharot’s TED Talk

Twitter:  @kathrynwelds
Google+
LinkedIn Open Group Women in Technology (sponsored by EMC)
Facebook Notes

©Kathryn Welds

“Productive Pause”, Intuition for Better Decisions

Everyday wisdom offers familiar advice to curtail impulsivity through slowing down and reflecting:

  • “Go slow to go fast”
  • “Sleep on it”
  • “Wait before sending an emotional email”
  • “Count to 10, think again”
Frank Partnoy

Frank Partnoy

Former investment banker and lawyer Frank Partnoy’s Wait: The Art and Science of Delay provides empirical evidence on the value of delay to increase the quality of decisions and performance across investment, sports, comedy, and other disciplines.Wait

Creativity experts have demonstrated the importance of an “incubation period” in developing innovative solutions, and Partnoy suggests that similar principles provide and advantage: gathering maximum information in uncertain situations, by executing decisions and performance close to the last opportunity.

University of San Diego’s Partnoy recommends a three step approach to decision-making:

1) Determine the maximum time available to gather information and take the decision
2) Consider, reflect, “incubate” on the information as long as possible
3) Act quickly at the last possible moment

Malcolm Gladwell

Malcolm Gladwell

His approach could be summarized by referring to Malcolm Gladwell’s best-seller, Blink: The Power of Thinking Without Thinking : “Don’t just blink but think.”

Nalini Ambady

Nalini Ambady

Gladwell argues that people with expert experience and insight are often skilled at using ‘adaptive unconscious’ intuition to “thin-slice” subtle cues to filter relevant information from “noise,” a concept based on Nalini Ambady and Robert Rosenthal’s research at Harvard.

Justin Albrechtsen

Justin Albrechtsen

Christian Meissner

Christian Meissner

Research by Justin Albrechtsen, Christian Meissner, and Kyle Susa  of University of Texas at El Paso demonstrated “thin-slicing” when they found that intuitive processing can lead to more accurate judgments of deception when compared with deliberative processing.

Kyle Susa

Kyle Susa

Gladwell and these researchers acknowledge that non-experts, and even experts, can be make erroneous decisions due to bias and prejudice that comes from automatic thinking and habitual cognitive heuristics like the halo effect.

Gerard Hodgkinson

Gerard Hodgkinson

Gerard Hodgkinson of Leeds University found that biased intuitive judgment may be mitigated by “devil’s advocacy” and applying analytical tools like multi-attribute decision analysis and root cause analysis.

He suggests that informed intuition or ‘intelligent-unconscious’ results from subconscious information storage, processing and retrieval, and has conducted several empirical studies to evaluate its mechanisms applied to developing business strategies.

Intuitive judgment was positively correlated with quality and speed of decisions, organizational financial and non-financial performance in at least five studies.

Hodgkinson’s team summarized recent advances in neuroscience, including functional magnetic resonance imaging (fMRI) studies to explain complementary intuitive and analytical approaches to decision making  instead of the overly-simplified notion of left brain vs right brain processing  strengths.

He synthesized intuition attributes:

  • Instantaneous insight after incubation period
  • Subjective judgments
  • Based on experience, tacit knowledge, “knowing without knowing
  • Arise through rapid, non-conscious holistic associations
  • Affectively-charged: “feels right”, experienced as ‘‘inklings’’ or ‘‘glimmerings’’
  • Lacking verbalization or conscious awareness of problem solving.

Cognitive neuroscientists have differentiated intuition from instinct and insight using functional magnetic resonance imaging (fMRI) techniques.

Instinct refers to hardwired, autonomous reflex actions, whereas insight involves recognizing and articulating a problem’s structure, and may follow from intuition.

Hodgkinson’s research suggests that intuition can be enhanced by increasing:

  • Expertise (“prepared mind” or ‘‘deep smarts’’)
  • Self-awareness (feeling and cognitive style)
  • Reflection
Akio Morita

Akio Morita

His team’s research supports an assertion by Akio Morita, co-founder of Sony and driving force behind its successful Sony Walkman, that ‘‘creativity requires something more than the processing of information. It requires human thought, spontaneous intuition and a lot of courage.’’

-*How have you used pauses or intuition to strengthen decision-making and advance business innovation?

Related Posts

©Kathryn Welds