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thinkahol *

How your memories can be twisted under social pressure | KurzweilAI - 0 views

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    Listen up, Facebook and Twitter groupies: how easily can social pressure affect your memory? Very easily, researchers at the Weizmann Institute and University College London have proved, and they think they even know what part of the brain is responsible. The participants conformed to the group on these "planted" responses, giving incorrect answers nearly 70% of the time. Volunteers watched a documentary film in small groups. Three days later, they returned to the lab individually to take a memory test, answering questions about the film. They were also asked how confident they were in their answers. They were later invited back to the lab to retake the test. This time, the subjects were also given supposed answers of the others in their film-viewing group (along with social-media-style photos) while being scanned in a functional MRI (fMRI) that revealed their brain activity. Is most of what you know false? Planted among these were false answers to questions the volunteers had previously answered correctly and confidently. The participants conformed to the group on these "planted" responses, giving incorrect answers nearly 70% of the time. To determine if their memory of the film had actually undergone a change, the researchers invited the subjects back to the lab later to take the memory test once again, telling them that the answers they had previously been fed were not those of their fellow film watchers, but random computer generations. Some of the responses reverted back to the original, correct ones, but get this: despite finding out the scientists messed with their minds, close to half of their responses remained erroneous, implying that the subjects were relying on false memories implanted in the earlier session. An analysis of the fMRI data showed a strong co-activation and connectivity between two brain areas: the hippocampus and the amygdala. Social reinforcement could act on the amygdala to persuade our brains to replace a strong memory wi
nat bas

Understanding the Anxious Mind - NYTimes.com - 0 views

  • But some people, no matter how robust their stock portfolios or how healthy their children, are always mentally preparing for doom. They are just born worriers, their brains forever anticipating the dropping of some dreaded other shoe. For the past 20 years, Kagan and his colleagues have been following hundreds of such people, beginning in infancy, to see what happens to those who start out primed to fret. Now that these infants are young adults, the studies are yielding new information about the anxious brain.
  • Four significant long-term longitudinal studies are now under way: two at Harvard that Kagan initiated, two more at the University of Maryland under the direction of Nathan Fox, a former graduate student of Kagan’s. With slight variations, they all have reached similar conclusions: that babies differ according to inborn temperament; that 15 to 20 percent of them will react strongly to novel people or situations; and that strongly reactive babies are more likely to grow up to be anxious.
  • In the brain, these thoughts can often be traced to overreactivity in the amygdala, a small site in the middle of the brain that, among its many other functions, responds to novelty and threat. When the amygdala works as it should, it orchestrates a physiological response to changes in the environment. That response includes heightened memory for emotional experiences and the familiar chest pounding of fight or flight. But in people born with a particular brain circuitry, the kind seen in Kagan’s high-reactive study subjects, the amygdala is hyperreactive, prickly as a haywire motion-detector light that turns on when nothing’s moving but the rain. Other physiological changes exist in children with this temperament, many of them also related to hyperreactivity in the amygdala. They have a tendency to more activity in the right hemisphere, the half of the brain associated with negative mood and anxiety; greater increases in heart rate and pupil dilation in response to stress; and on occasion higher levels of the stress hormones cortisol and norepinephrine.
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  • The physiological measurements led them to believe something biological was at work. Their hypothesis: the inhibited children were “born with a lower threshold” for arousal of various brain regions, in particular the amygdala, the hypothalamus and the hypothalamic-pituitary-adrenal axis, the circuit responsible for the stress hormone cortisol.
  • At age 4, children who had been high-reactive were four times as likely to be behaviorally inhibited as those who had been low-reactive. By age 7, almost half of the jittery babies had developed symptoms of anxiety — fear of thunder or dogs or darkness, extreme shyness in the classroom or playground — compared with just 10 percent of the more easygoing ones. About one in five of the high-reactive babies were consistently inhibited and fearful at every visit up to the age of 7.
  • By adolescence, the rate of anxiety in Kagan’s study subjects declined overall, including in the high-risk group. At 15, about two-thirds of those who had been high-reactors in infancy behaved pretty much like everybody else.
  • PEOPLE WITH A nervous temperament don’t usually get off so easily, Kagan and his colleagues have found. There exists a kind of sub-rosa anxiety, a secret stash of worries that continue to plague a subset of high-reactive people no matter how well they function outwardly. They cannot quite outrun their own natures: consciously or unconsciously, they remain the same uneasy people they were when they were little.
  • Teenagers who were in the group at low risk for anxiety showed no increase in activity in the amygdala when they looked at the face, even if they had been told to focus on their own fear. But those in the high-risk group showed increased activity in the amygdala when they were thinking about their own feelings (though not when they were thinking about the nose). Once again, this pattern was seen in anxiety-prone youngsters quite apart from whether they had problems with anxiety in their daily lives. In the high-risk kids, even those who were apparently calm in most settings, their amygdalas lighted up more than the others’ did.
  • Behaviorally inhibited children were much more likely to have older siblings: two-thirds of them did, compared with just one-third of the uninhibited children. Could having older siblings, he and his co-authors wondered, mean being teased and pushed, which becomes a source of chronic stress, which in turn amplifies a biological predisposition to inhibition?
  • high-reactive babies who went to day care when they were young were significantly less fearful at age 4 than were the high-reactives who stayed home with their mothers.
  • The predictive power of an anxiety-prone temperament, such as it is, essentially works in just one direction: not by predicting what these children will become but by predicting what they will not. In the longitudinal studies of anxiety, all you can say with confidence is that the high-reactive infants will not grow up to be exuberant, outgoing, bubbly or bold. Still, while a Sylvia Plath almost certainly won’t grow up to be a Bill Clinton, she can either grow up to be anxious and suicidal, or simply a poet. Temperament is important, but life intervenes.
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    This is a good article that looks at how anxiety happens- it is more or less something you are born with, but you learn to live with, if you are intelligent about it. Liked it. Good writing.
thinkahol *

Anatomically distinct dopamine release during anticipation and experience of peak emoti... - 0 views

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    Music, an abstract stimulus, can arouse feelings of euphoria and craving, similar to tangible rewards that involve the striatal dopaminergic system. Using the neurochemical specificity of [11C]raclopride positron emission tomography scanning, combined with psychophysiological measures of autonomic nervous system activity, we found endogenous dopamine release in the striatum at peak emotional arousal during music listening. To examine the time course of dopamine release, we used functional magnetic resonance imaging with the same stimuli and listeners, and found a functional dissociation: the caudate was more involved during the anticipation and the nucleus accumbens was more involved during the experience of peak emotional responses to music. These results indicate that intense pleasure in response to music can lead to dopamine release in the striatal system. Notably, the anticipation of an abstract reward can result in dopamine release in an anatomical pathway distinct from that associated with the peak pleasure itself. Our results help to explain why music is of such high value across all human societies.
kieraberry

10 Sure-Fire Tips to Create Outstanding Responsive Websites | Branex - Digital Agency T... - 0 views

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    Here are some of the tried and tested tips that can enhance the user experience of your responsive website.
Robert Kamper

Workplace Woe: Are Abusive Bosses Or Inferior Employees To Blame? - 0 views

  • Considerable attention, both in blogs and in popular media, has been given to abusive bosses over the past few years. Less discussed are employees' responses to such behavior. How do employees react to abusive supervisors? Do they simply take what is dished out, or do they actively seek to change the situation?
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    abusive managers and employees' responses
Sue Frantz

Towards responsible use of cognitive-enhancing drugs by the healthy : Article : Nature - 0 views

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    I'm having a hard time thinking this is a good idea. I'd prefer to move toward less reliance on drugs rather than more.
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    "In this article, we propose actions that will help society accept the benefits of enhancement, given appropriate research and evolved regulation. Prescription drugs are regulated as such not for their enhancing properties but primarily for considerations of safety and potential abuse. Still, cognitive enhancement has much to offer individuals and society, and a proper societal response will involve making enhancements available while managing their risks."
wheelchairindia

Pediatric Wheelchair - 0 views

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    The body size differences are paralleled by maturational changes. The smaller body of an infant or neonate is substantially different physiologically from that of an adult. Congenital defects, genetic variance, and developmental issues are of greater concern to pediatricians than they often are to adult physicians.

    A major difference between pediatrics and adult medicine is that children are minors and, in most jurisdictions, cannot make decisions for themselves. The issues of guardianship, privacy, legal responsibility and informed consent must always be considered in every pediatric procedure. In a sense, pediatricians often have to treat the parents and sometimes, the family, rather than just the child. Adolescents are in their own legal class, having rights to their own health care decisions in certain circumstances. In basic terms, pediatricians take care of all of the children's needs from emotional support to medical support.

    Wheelchair india as Pediatric Wheelchair Manufacturers and Pediatric Wheelchair supplier sale at low cost - price, We Sale online Pediatric Powered Wheelchair and Pediatric Electric Wheelchair at wholesale prices...
v s

Phobia - 0 views

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    Fear is a natural in born response of all living beings. When fear becomes frequent, intense and unreasonable it comes to be classified as phobia.
thinkahol *

Paul Zak: Trust, morality -- and oxytocin | Video on TED.com - 0 views

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    What drives our desire to behave morally? Neuroeconomist Paul Zak shows why he believes oxytocin (he calls it "the moral molecule") is responsible for trust, empathy and other feelings that help build a stable society.
anindayuni

How to Increase Testosterone Naturally - 0 views

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    It is probаblу good tо explain fіrst whу testosterone is іmpоrtаnt bеfоre I begin to explain ways to naturally boost testosterone levels. Hormones play a very іmрortant role іn оur bodies аnd аrе responsible for mаnу functions аnd activities. Тhe male hormone, testosterone, іs a key ingredient in a weight loss or muscle building program. Іt will help tо reduce fat retention and will аlsо maximize muscle building potential. There аrе numerous benefits tо increased levels оf testosterone, and hеre arе јust a few that аrе relevant fоr fat loss аnd muscle building: * Decrease in body fat percentage * Increase іn muscular size * Increase іn muscular strength * Increase іn muscular endurance There аre mаnу оthеr benefits that are nоt rеlated tо the muscle building equation. Thеse include improvement іn mood аnd a decrease in "bad" cholesterol. It is bесаuse оf thеse benefits that body builders focus a lot of attention оn ways to naturally boost testosterone levels. Іf you learn hоw tо increase testosterone naturally, you'll gеt all the benefits by following thеse easy ways to increase testosterone withоut any оf the negatives associated with steroids and other nasty supplements. 1 - Compound Exercises You're going to the gym anуwaу so changing уour workout tо focus оn mоre compound exercises will not be that difficult. Тrу tо build а weight lifting program that іs developed аrоund a core group of compound exercises lіke squats, deadlifts, bаck rows, bench presses, chin uрs, and оthеrs thаt use sevеrаl large muscle groups rather focusing оn a small muscle. I'm not sауіng to completely ignore isolation exercises for smaller muscles, just tо refocus the workout tо include more compound lifts. 2 - Heavy Weights The harder уоu work іn the gym, the harder yоur body will work tо help thе recovery. Weights саn help tо increase testosterone naturally?
yc c

PXLab - The Psychological Experiments Laboratory - 0 views

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    PXLab is a collection of Java classes and applications for running psychological experiments. The PXLab system allows interactive design of a wide range of experiments from all areas of psychological research. It includes a run time control system which runs experiments under highly optimized timing constraints. PXLab's major features include: Complete procedural control for sessions, blocks, and trials, display composition by combining elementary display objects, timing groups of display objects, more than 100 elementary display objects: text, geometric objects, images, gratings, sound, movies, and many more, conditional display execution, response collection from keyboard, mouse, external devices, and sound channels, precise timing with optimized use of accelerated video memory, automatic time control and report of all timing properties, vertical retrace synchronization with native code library under Windows, color control by CIE chromaticity coordinates using built in gamma correction, all display object properties controlled by experimental parameters, experiments can run as local applications or as HTML-embedded applets using the same design file, same program does data collection in the laboratory and on the internet extensible by implementing new display objects in Java code uses ASCII design files, tools for design file editing, command line experiments, and color calibration, special features for class room demonstrations and laboratory courses.
thinkahol *

Op-Ed Contributor - The Magical Properties of Everyday Numbers - NYTimes.com - 0 views

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    A Roman emperor is actually responsible for the 7-day antibiotic course.
Robert Kamper

ScienceDirect - Personality and Individual Differences : Caffeine, stress, and pronenes... - 0 views

  • Caffeine, stress, and proneness to psychosis-like experiences: A preliminary investigation
  • cortisol released in response to stressors is proposed to play a role in the development of psychotic experiences. Individual differences in cortisol response to stressors are therefore likely to play a role in proneness to psychotic experiences.
  • Caffeine intake, stress, hallucination-proneness and persecutory ideation were assessed by self-report questionnaires in a non-clinical sample (N = 219). Caffeine intake was positively related to stress levels and hallucination-proneness, but not persecutory ideation. When stress levels were controlled for, caffeine intake predicted levels of hallucination-proneness but not persecutory ideation.
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  • Keywords: Coffee; Hallucination; Persecutory ideation; Psychosis; Schizophrenia; Tea
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    study using SELF REPORT QUESTIONNAIRES on relationship of caffeine, stress, and proneness to psychosis like experiences
Sue Frantz

Clinton named secretary of state - Nova Scotia News - TheChronicleHerald.ca - 0 views

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    Obama working to avoid groupthink: "I assembled this team because I am a strong believer in strong personalities and strong opinions," he said. "I think that's how the best decisions are made. One of the dangers in a White House, based on my reading of history, is that you get wrapped up in group-think and everybody agrees with everything and there's no discussion and there are no dissenting views. So I am going to be welcoming a vigorous debate inside the White House. "But understand, I will be setting policy as president. I will be responsible for the vision that this team carries out, and I will expect them to implement that vision once decisions are made."
Todd Suomela

Project Syndicate - 0 views

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    Trivial reminders of money made a surprisingly large difference. For example, where the control group would offer to spend an average of 42 minutes helping someone with a task, those primed to think about money offered only 25 minutes. Similarly, when someone pretending to be another participant in the experiment asked for help, the money group spent only half as much time helping her. When asked to make a donation from their earnings, the money group gave just a little over half as much as the control group. Why does money makes us less willing to seek or give help, or even to sit close to others? Vohs and her colleagues suggest that as societies began to use money, the necessity of relying on family and friends diminished, and people were able to become more self-sufficient. "In this way," they conclude, "money enhanced individualism but diminished communal motivations, an effect that is still apparent in people's responses today."
thinkahol *

The Blog : Drugs and the Meaning of Life : Sam Harris - 1 views

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    Everything we do is for the purpose of altering consciousness. We form friendships so that we can feel certain emotions, like love, and avoid others, like loneliness. We eat specific foods to enjoy their fleeting presence on our tongues. We read for the pleasure of thinking another person's thoughts. Every waking moment-and even in our dreams-we struggle to direct the flow of sensation, emotion, and cognition toward states of consciousness that we value.Drugs are another means toward this end. Some are illegal; some are stigmatized; some are dangerous-though, perversely, these sets only partially intersect. There are drugs of extraordinary power and utility, like psilocybin (the active compound in "magic mushrooms") and lysergic acid diethylamide (LSD), which pose no apparent risk of addiction and are physically well-tolerated, and yet one can still be sent to prison for their use-while drugs like tobacco and alcohol, which have ruined countless lives, are enjoyed ad libitum in almost every society on earth. There are other points on this continuum-3,4-methylenedioxymethamphetamine (MDMA or "Ecstasy") has remarkable therapeutic potential, but it is also susceptible to abuse, and it appears to be neurotoxic.[1]One of the great responsibilities we have as a society is to educate ourselves, along with the next generation, about which substances are worth ingesting, and for what purpose, and which are not. The problem, however, is that we refer to all biologically active compounds by a single term-"drugs"-and this makes it nearly impossible to have an intelligent discussion about the psychological, medical, ethical, and legal issues surrounding their use. The poverty of our language has been only slightly eased by the introduction of terms like "psychedelics" to differentiate certain visionary compounds, which can produce extraordinary states of ecstasy and insight, from "narcotics" and other classic agents of stupefaction and abuse.
freejanamkundli

Moon in 3rd house Janam kundli, Effects on marriage & career - 0 views

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    The natives who have Moon in their 3rd house of Kundli usually lack the competence to handle the responsibilities of marriage. Moon in the third house of career makes the native interesting in picking up new languages
v s

How to Overcome Depression | Overcome Depression | India - 0 views

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    Feeling sad is a natural emotional response to upsetting life situations. It is only when this sadness is prolonged and interferes with our daily living, like feelings of guilt, lack of concentration, sleep problems, changes in appetite, can we term it as depression.
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