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User ID: 1516551 Canada 10/11/2011 07:52 PM Report Abusive Post Report Copyright Violation | Optimism Is a Brain Defect, According to Functional MRI Scans Pervasive, persistent optimism is one of those uniquely human traits/flaws - we tend to believe things are better than they really are, or that negative consequences won't befall us, even if they befall others. It stands to reason that people would adjust their expectations when confronted with harsh reality, yet they don't. Our brains are to blame, according to a new study - we're wired to have a positive outlook.
Neuroscientists have been searching for the physiological underpinnings for this sanguineness, because there are actual harms that can come from an "it-can't-happen-to-me" or "it'll-get-better-this-year" attitude. People might make reckless decisions or have unrealistic expectations, in everything from personal health to finance. Researchers have thought this rose-colored outlook is mediated in the brain centers involved in error processing, so a team from England and Germany set about studying this using functional magnetic resonance imaging.
To study optimism, they examined how people under-estimated the impact or possibility of future negative events, because this "it-can't-happen-to-me" feeling has implications for how people protect themselves. The research team gave participants a list of 80 different negative life events, including getting Alzheimer's disease, being fired, being cheated on by a spouse, and so on. They were asked to rate how likely they were to experience these events, and then they were told their actual probability for experiencing the events. Then they were asked to estimate their own likelihoods of experience again. The scientists monitored brain activity during these tests.
People were far more likely to change their estimates when they learned they were less likely to experience these harms, according to the researchers, from the Wellcome Trust Centre for Neuroimaging at University College London, the Free University of Berlin and Humboldt University in Berlin. On the other hand, when things were worse than expected, the participants still gave the original, incorrect estimate.
Brain activity tracks with these findings, the researchers say. When things were better than expected, activity in the frontal cortices spiked, monitoring estimation errors. But when things were worse, the brain activity was much weaker.
"Our findings suggest that this human propensity toward optimism is facilitated by the brain's failure to code errors in estimation when those call for pessimistic updates," the authors write in the online version of Nature Neuroscience.
"Any advantage arising out of unrealistic optimism is likely to come at a cost. For example, an unrealistic assessment of financial risk is widely seen as contributing factor to the 2008 global economic collapse," they write. "Dismissing undesirable errors in estimation renders us peculiarly susceptible to view the future through rose-colored glasses." |
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User ID: 1516551 Canada 10/11/2011 11:40 PM Report Abusive Post Report Copyright Violation | Re: Optimism Is a Brain Defect, According to Functional MRI Scans So is that why we have all those B.S's for predictions of maga waves or planets, or financial disasters or what ever because people are too positive. Its all in their head. Lets not be too positive or too negative but careful and cautious or should I say sane in mind about life and about what or may not come because anything is possible, PEACE |
Anonymous Coward User ID: 78918241 Australia 05/16/2020 04:34 PM Report Abusive Post Report Copyright Violation | Re: Optimism Is a Brain Defect, According to Functional MRI Scans Only stupid people are happy |
Anonymous Coward User ID: 76832089 United States 05/16/2020 04:43 PM Report Abusive Post Report Copyright Violation | Re: Optimism Is a Brain Defect, According to Functional MRI Scans The world is slaughter house interrupted by amusement parks.
Never mind. The amusement parks are closed. It’s just a slaughter house. |
Anonymous Coward User ID: 78899340 Turkey 05/16/2020 04:45 PM Report Abusive Post Report Copyright Violation | Re: Optimism Is a Brain Defect, According to Functional MRI Scans . |
syncro
User ID: 75835116 United States 05/16/2020 04:53 PM Report Abusive Post Report Copyright Violation | Re: Optimism Is a Brain Defect, According to Functional MRI Scans I'm optimistic about this. |
Anonymous Coward User ID: 78921740 Australia 05/16/2020 04:58 PM Report Abusive Post Report Copyright Violation | Re: Optimism Is a Brain Defect, According to Functional MRI Scans Im very optomistic that this world is doomed. |
Anonymous Coward User ID: 77119396 United States 05/16/2020 11:46 PM Report Abusive Post Report Copyright Violation | Re: Optimism Is a Brain Defect, According to Functional MRI Scans Im very optomistic that this world is doomed.
Quoting: Anonymous Coward 78921740 :shesright: |