How Genuine Science Explains Near Death Experiences - SCI-ART LAB2024-03-28T12:30:14Zhttps://kkartlab.in/forum/topics/how-science-explains-near-death-experiences?groupUrl=some-science&feed=yes&xn_auth=nohttps://skeptiko.com/sam-parn…tag:kkartlab.in,2020-03-20:2816864:Comment:1601042020-03-20T06:38:46.977ZDr. Krishna Kumari Challahttps://kkartlab.in/profile/DrKrishnaKumariChalla
<p><a href="https://skeptiko.com/sam-parnia-claims-near-death-experience-probably-an-illusion/">https://skeptiko.com/sam-parnia-claims-near-death-experience-probably-an-illusion/</a></p>
<p><a href="https://skeptiko.com/sam-parnia-claims-near-death-experience-probably-an-illusion/">https://skeptiko.com/sam-parnia-claims-near-death-experience-probably-an-illusion/</a></p> 1. Greyson B (2000) Near-deat…tag:kkartlab.in,2015-10-05:2816864:Comment:1318552015-10-05T04:11:50.478ZDr. Krishna Kumari Challahttps://kkartlab.in/profile/DrKrishnaKumariChalla
<p>1. Greyson B (2000) Near-death experiences. In: Cardena E, Lynn SJ, Krippner S (eds) Varieties<br></br> of Anomalous Experiences: Examining the Scientific Evidence. American Psychological Asso-<br></br> ciation, Washington, pp 315–352<br></br> 2. Blanke O, Landis T, Spinelli L, Seeck M (2004) Out-of-body experience and autoscopy of neu-<br></br> rological origin. Brain 127: 243–258.<br></br> 3. Uniform Determination of Death Act (1997) 598 (West 1993 and West Supp. 1997.) Uniforms<br></br> Laws Annoted (ULA),…</p>
<p>1. Greyson B (2000) Near-death experiences. In: Cardena E, Lynn SJ, Krippner S (eds) Varieties<br/> of Anomalous Experiences: Examining the Scientific Evidence. American Psychological Asso-<br/> ciation, Washington, pp 315–352<br/> 2. Blanke O, Landis T, Spinelli L, Seeck M (2004) Out-of-body experience and autoscopy of neu-<br/> rological origin. Brain 127: 243–258.<br/> 3. Uniform Determination of Death Act (1997) 598 (West 1993 and West Supp. 1997.) Uniforms<br/> Laws Annoted (ULA), 12.<br/> 4. Bernat JL, D’Alessandro AM, Port FK, et al (2006) Report of a National Conference on Dona-<br/> tion after cardiac death. Am J Transplant 6: 281–291<br/> 5. Laureys S (2005) Science and society: death, unconsciousness and the brain. Nat Rev Neu-<br/> rosci 6: 899–909<br/> 6. Moody RA (1975) Life After Life. Bantam Books, New York<br/> 7. Ring K (1980) Life at Death: A Scientific Investigation of the Near-Death Experience. Coward,<br/> McCann, and Geoghegan, New York<br/> 8. Greyson B (1983) The near-death experience scale. Construction, reliability, and validity. J<br/> Nerv Ment Dis 171: 369–375<br/> 9. Noyes R, Jr., Kletti R (1976) Depersonalization in the face of life-threatening danger: a<br/> description. Psychiatry 39: 19–27<br/> 10. Tellegen A, Atkinson G (1974) Openness to absorbing and self-altering experiences (”absorp-<br/> tion”), a trait related to hypnotic susceptibility. J Abnorm Psychol 83: 268–277<br/> 11. Irwin HJ (1993) The near-death as a dissociative phenomenon: An empirical assessment. J<br/> Near Death Stud 12: 95–103<br/> 12. Whinnery J (1997) Psychophysiologic correlates of unconsciousness and near-death experi-<br/> ences. J Near Death Stud 15: 231–258<br/> 13. Meduna L (1950) Carbon Dioxide Therapy. Charles Thomas, Springfield<br/> 14. Carr DB (1982) Pathophysiology of stress-induced limic lobe dysfunction: A hypothesis rele-<br/> vant to near-death experiences. Anabiosis: J Near Death Stud 2: 75–89<br/> 15. Morse ML, Venecia D, Milstein J (1989) Near-death experiences: A neurophysiologic explana-<br/> tory model. J Near Death Stud 8: 45–53<br/> 16. Jansen KLR (1989) Near death experience and the NMDA receptor. BMJ 298:1708<br/> 17. Jansen KLR (1997) The ketamine model for the near-death experience: A central role for the<br/> N-methyl-D-aspartate receptor. J Near Death Stud 16: 79–95<br/> 18. Blanke O, Ortigue S, Landis T, Seeck M (2002) Stimulating illusory own-body perceptions.<br/> Nature 419: 269– 270.<br/> 19. Britton WB, Bootzin RR (2004) Near-death experiences and the temporal lobe. Psychol Sci<br/> 15: 254–258<br/> 20. Saavedra-Aguilar JC, G ́<br/> omez-Jerias JS (1989) A neurobiological model of near-death experi-<br/> ences. J Near Death Stud 7: 205–222<br/> 21. Parnia S, Waller DG, Yeates R, Fenwick P (2001) A qualitative and quantitative study of the<br/> incidence, features and aetiology of near death experiences in cardiac arrest survivors. Resus-<br/> citation 48: 149–156<br/> 22. Van Lommel P, van Wees R, Meyers V, Elfferich I (2001) Near-death experience in survivors<br/> of cardiac arrest: a prospective study in the Netherlands. Lancet 358: 2039–2045<br/> 23. Schwaninger J, Eisenberg PR, Schectman KB, Weiss AN (2002) A prospective analysis of near<br/> death experiences in cardiac arrest patients. J Near Death Stud 20: 215–232<br/> 24. Greyson B (2003) Incidence and correlates of near-death experiences in a cardiac care unit.<br/> Gen Hosp Psychiatry 25: 269–276<br/> 25. Bünning S, Blanke O (2005) The out-of body experience: precipitating factors and neural cor-<br/> relates. Prog Brain Res 150: 331–350<br/> 26. Faguet RA (1979) With the eyes of the mind: autoscopic phenomena in the hospital setting.<br/> Gen Hosp Psychiatry 1: 311–314<br/> 27. De Ridder D, Van Laere K, Dupont P, Menovsky T, Van de Heyning P (2007) Visualizing out-<br/> of-body experience in the brain. N Engl J Med 357: 1829–1833<br/> 28. Blanke O (2004) Out of body experiences and their neural basis. BMJ 329: 1414–1415</p>
<p><a href="http://www.iands.org/index.php" target="_blank">http://www.iands.org/index.php</a></p> --
A study from the Unive…tag:kkartlab.in,2015-04-28:2816864:Comment:1279632015-04-28T02:41:14.572ZDr. Krishna Kumari Challahttps://kkartlab.in/profile/DrKrishnaKumariChalla
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A study from the University of Kentucky has quickly gained ground among scientists as possibly the best explanation for NDEs. Researchers there theorize that the mysterious phenomenon is really an instance of the sleep disorder rapid eye movement (REM) intrusion. In this disorder, a person's mind can wake up before his body, and hallucinations and the feeling of being physically detached from his body can occur.<br></br>
<br></br>
The Kentucky researchers believe that…
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A study from the University of Kentucky has quickly gained ground among scientists as possibly the best explanation for NDEs. Researchers there theorize that the mysterious phenomenon is really an instance of the sleep disorder rapid eye movement (REM) intrusion. In this disorder, a person's mind can wake up before his body, and hallucinations and the feeling of being physically detached from his body can occur.<br/>
<br/>
The Kentucky researchers believe that NDEs are actually REM intrusions triggered in the brain by traumatic events like cardiac arrest. If this is true, then this means the experiences of some people following near-death are confusion from suddenly and unexpectedly entering a dream-like state.<br/>
<br/>
This theory helps explain what has always been a tantalizing aspect of the mystery of NDEs: how people can experience sights and sounds after confirmed brain death. The area where REM intrusion is triggered is found in the brain stem -- the region that controls the most basic functions of the body -- and it can operate virtually independent from the higher brain. So even after the higher regions of the brain are dead, the brain stem can conceivably continue to function, and REM intrusion could still occur [source: BBC].<br/>
<a href="https://science.howstuffworks.com/science-vs-myth/afterlife/science-life-after-death.htm" target="_blank">https://science.howstuffworks.com/science-vs-myth/afterlife/science...</a><br />
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To find the cause of a 43-year-old epileptic patient's seizures, Swiss neurologist Dr. Olaf Blanke conducted a brain mapping test using electrodes planted on the brain to determine which area controls what function. As one region was being stimulated, the woman had a sudden out-of-body experience. She told Blanke that she could see herself from above [source: New York Times].<br />
Blanke determined that by electrically stimulating the woman's angular gyrus, a part of the temporal parietal junction, he could induce her OBEs. What's remarkable is that the patient experienced an OBE each time her angular gyrus was arbitrarily stimulated.<br />
<br />
At any given time, the brain is assaulted with information. As a result, we become desensitized to the sights and sounds around us, such as the buzz of a fluorescent light. The temporal parietal junction (TPJ) is responsible for sorting through this disparate information and putting it together into a coherent package.<br />
<br />
The TPJ also happens to be the region that controls our comprehension of our own body and its situation in space. Blanke believes that a misfiring of this region is responsible for OBEs. If any of the information being sorted by the temporal parietal junction becomes crossed, like where we are in space, then we could seemingly be released from the confines of our body -- even if only for a moment.<br />
<br />
Both Blanke's and the University of Kentucky theories explain OBEs and NDEs. But what about when you put the two together as an explanation for experiences like that of Pam Reynolds? This still does not resolve how Pam Reynolds and others like her view themselves outside of their bodies while they were brain-dead.<br />
<br />
NDEs may be a result of REM intrusion, triggered in the brain stem. But OBEs are controlled by a region of the higher brain, which is clinically dead when NDEs occur. What's more, it seems logical to believe that the higher brain must still function in order to interpret the sensations produced by the REM intrusion triggered in the brain stem.<br />
<br />
Even though combining the University of Kentucky and Blanke theories does not produce an explanation for NDEs, it does not mean that either theory is wrong. Research in one area often leads to a breakthrough in another. Perhaps we will find out that an organic function is indeed behind NDEs.<br />
<br />
If neurology does come up with the definitive explanation for NDEs, the mystery may still remain. Science could explain the "how," while leaving the "why" unanswered. Discovering an explanation for NDEs may reveal a door to the metaphysical world, which could possibly be unlocked -- and explored -- by science.<br />
<a href="https://science.howstuffworks.com/science-vs-myth/afterlife/science-life-after-death1.htm" target="_blank">https://science.howstuffworks.com/science-vs-myth/afterlife/science-life-after-death1.htm</a> http://www.sciencealert.com/t…tag:kkartlab.in,2015-04-28:2816864:Comment:1277252015-04-28T02:02:42.891ZDr. Krishna Kumari Challahttps://kkartlab.in/profile/DrKrishnaKumariChalla
<p><a href="http://www.sciencealert.com/there-are-seven-types-of-near-death-experiences-according-to-new-research" target="_blank">http://www.sciencealert.com/there-are-seven-types-of-near-death-exp...</a><br></br> There are seven types of near-death experiences, according to research<br></br> Fear<br></br> Seeing animals or plants<br></br> Bright light<br></br> Violence and persecution<br></br> Deja-vu<br></br> Seeing family<br></br> Recalling events post-cardiac arrest</p>
<p>--…</p>
<p></p>
<p><a href="http://www.sciencealert.com/there-are-seven-types-of-near-death-experiences-according-to-new-research" target="_blank">http://www.sciencealert.com/there-are-seven-types-of-near-death-exp...</a><br/> There are seven types of near-death experiences, according to research<br/> Fear<br/> Seeing animals or plants<br/> Bright light<br/> Violence and persecution<br/> Deja-vu<br/> Seeing family<br/> Recalling events post-cardiac arrest</p>
<p>--</p>
<p><span id="__w2_CM27xSN_toggle_link"><span id="ld_xqufjv_10405"><span id="ld_bjjwtj_10266"><span class="inline_editor_value">There is no evidence that souls exist, that Heaven exists, that after-life exists. Those who want to believe what they want to believe cannot understand this. And we don't understand death too properly to come to firm conclusions about it. Science is trying to first find out what consciousness is.<br/>And what will happen at the time of death? People say they have expereinced several things and according to science, these are all illusions created by the brain and scientists were able to reproduce them in labs using certain techniques. please read the article I wrote on this here: <span class="qlink_container"><a href="http://kkartlab.in/group/some-science/forum/topics/how-science-explains-near-death-experiences" rel="noreferrer nofollow" class="external_link" target="_blank">http://kkartlab.in/group/some-sc...</a></span></span></span></span></span></p>
<p><a href="https://www.quora.com/What-will-happen-at-the-time-of-death" target="_blank">https://www.quora.com/What-will-happen-at-the-time-of-death</a></p>
<p>--</p>
<h1>How Come Some People Believe in the Paranormal?</h1>
<p><a href="http://www.scientificamerican.com/article/how-come-some-people-believe-in-the-paranormal/?WT.mc_id=SA_WR_20150902" target="_blank">http://www.scientificamerican.com/article/how-come-some-people-beli...</a></p>
<p>--</p>
<p>What happens to your body after your death?</p>
<p><iframe width="560" height="315" src="https://www.youtube.com/embed/BpuTLnSr_20?wmode=opaque" frameborder="0"></iframe>
</p> study on resuscitated patient…tag:kkartlab.in,2014-10-11:2816864:Comment:1209192014-10-11T10:41:16.840ZDr. Krishna Kumari Challahttps://kkartlab.in/profile/DrKrishnaKumariChalla
<p>study on resuscitated patients hints at consciousness after death<br></br> The largest medical study ever performed on near-death experiences has led researchers to suggest that consciousness can last up to three minutes after a person’s heart and brain have shut down.<br></br> The idea that consciousness can continue on after your heart stops beating and your brain stops functioning is a pretty wild one, and naturally courts a lot of scepticism. But the more scientists study the supposed…</p>
<p>study on resuscitated patients hints at consciousness after death<br/> The largest medical study ever performed on near-death experiences has led researchers to suggest that consciousness can last up to three minutes after a person’s heart and brain have shut down.<br/>
The idea that consciousness can continue on after your heart stops beating and your brain stops functioning is a pretty wild one, and naturally courts a lot of scepticism. But the more scientists study the supposed phenomenon, the more certain trends are reinforced, giving us a glimpse into what actually might occur when we die.</p>
<p>A team of scientists at the University of Southampton in the UK has just finished a four-year study of 2,060 people who experienced cardiac arrests at 15 hospitals across the UK, the US, and Austria. Having conducted interviews with each of the 330 people who survived about their memories of the event, the researchers found that 40 percent of them felt ‘aware’ for the period of time that they were declared clinically dead. The medical staff at the hospitals successfully restarted their hearts so they could live to tell the tale.</p>
<p>According to The National Post, one man participating in the study described the feeling that he was watching his treatment from the corner of the room, while a female participant was able to recount exactly the actions of the nursing staff that resurrected her over a three-minute period. She could even very accurately describe the sound of the machines that surrounded her ‘dead’ body.<br/> “We know the brain can’t function when the heart has stopped beating, but in this case conscious awareness appears to have continued for up to three minutes into the period when the heart wasn’t beating, even though the brain typically shuts down within 20 to 30 seconds after the heart has stopped,” Sam Parnia, the study leader and a former assistant professor of medicine at Southampton University, told The National Post. He’s now based at the State University of New York in the US.</p>
<p>“The man described everything that had happened in the room, but importantly, he heard two bleeps from a machine that makes a noise at three-minute intervals. So we could time how long the experienced lasted for. He seemed very credible and everything that he said had happened to him had actually happened,” said Parnia.</p>
<p>While not all of the people who survived the ordeal recalled some sort of experience in clinical death, perhaps because the medication they were given was messing with their brain function, The National Post reports that certain trends emerged from the 40 percent that did. One in five reported feeling peaceful, and a third said they felt time either speed up or slow down. Some described bright lights, others described feeling detached from their bodies. Some felt scared that they were drowning.</p>
<p>“Estimates have suggested that millions of people have had vivid experiences in relation to death, but the scientific evidence has been ambiguous at best,” Parnia told The National Post. “Many people have assumed that these were hallucinations or illusions, but they do seem to correspond to actual events. These experiences warrant further investigation.”</p>
<p>Of course, any research into what actually goes on after death will always be controversial, due to the enormous difficulties in gathering enough evidence to support much of anything that’s scientifically sound, but studies like this are at least an intriguing starting point.</p>
<p>The study was published in the journal Resuscitation.<br/> <a href="http://www.resuscitationjournal.com/article/S0300-9572%2814%2900765-5/abstract" target="_blank">http://www.resuscitationjournal.com/article/S0300-9572%2814%2900765-5/abstract</a></p> Deep Brain Stimulation Trigge…tag:kkartlab.in,2014-04-29:2816864:Comment:1162212014-04-29T04:51:06.763ZDr. Krishna Kumari Challahttps://kkartlab.in/profile/DrKrishnaKumariChalla
<p>Deep Brain Stimulation Triggers Hallucinations<br></br> Close your eyes and imagine home. Sharp details—such as the shape of the front doorknob, the height of the windows, or the paint color—assemble in your mind with a richness that seems touchable. A new study has found where this mental projection lives in the brain by inducing hallucinations in an epilepsy patient. A 22-year-old male was receiving deep brain stimulation to isolate where his daily seizures originated. His disorder appeared…</p>
<p>Deep Brain Stimulation Triggers Hallucinations<br/> Close your eyes and imagine home. Sharp details—such as the shape of the front doorknob, the height of the windows, or the paint color—assemble in your mind with a richness that seems touchable. A new study has found where this mental projection lives in the brain by inducing hallucinations in an epilepsy patient. A 22-year-old male was receiving deep brain stimulation to isolate where his daily seizures originated. His disorder appeared after he caught West Nile virus at the age of 10 and subsequently suffered from brain inflammation. His episodes were always preceded by intense déjà vu, suggesting a visual component of his disease, but he had no history of hallucinations. Brain scans revealed a shrunken spot near his hippocampus—the brain’s memory center. Studies had shown that this region—known as the parahippocampal place area (PPA)—was involved with recognizing of scenes and places. Doctors reconfirmed this by showing the patient pictures of a house and seeing the PPA light up on brain scans with functional magnetic resonance imaging (images above show brain activity; yellow indicates stronger activation than red). Thin wire electrodes—less than 2 mm thick—placed in the PPA (yellow dots in right panel) recorded similar brain activity after viewing these pictures. To assess if the PPA was ground zero for seizures, the doctors used a routine procedure that involves shooting soft jolts of electricity into the region and seeing if the patient senses an oncoming seizure. Rather than have déjà vu, the patient’s surroundings suddenly changed as he hallucinated places familiar to him. In one instance, the doctors morphed into the Italians from his local pizza place. Zapping a nearby cluster of neurons produced a vision of his subway station. The findings, published on 16 April in The Journal of Neuroscience, confirm that this small corner of the brain is not only responsible for recognizing places, but is also crucial to recalling a mental vision of that place.</p>
<p><a href="http://news.sciencemag.org/brain-behavior/2014/04/scienceshot-deep-brain-stimulation-triggers-hallucinations" target="_blank">http://news.sciencemag.org/brain-behavior/2014/04/scienceshot-deep-brain-stimulation-triggers-hallucinations</a><br/> ''Seeing Scenes: Topographic Visual Hallucinations Evoked by Direct Electrical Stimulation of the Parahippocampal Place Area''<br/> In recent years, functional neuroimaging has disclosed a network of cortical areas in the basal temporal lobe that selectively respond to visual scenes, including the parahippocampal place area (PPA). Beyond the observation that lesions involving the PPA cause topographic disorientation, there is little causal evidence linking neural activity in that area to the perception of places. Here, we combined functional magnetic resonance imaging (fMRI) and intracranial EEG (iEEG) recordings to delineate place-selective cortex in a patient implanted with stereo-EEG electrodes for presurgical evaluation of drug-resistant epilepsy. Bipolar direct electrical stimulation of a cortical area in the collateral sulcus and medial fusiform gyrus, which was place-selective according to both fMRI and iEEG, induced a topographic visual hallucination: the patient described seeing indoor and outdoor scenes that included views of the neighborhood he lives in. By contrast, stimulating the more lateral aspect of the basal temporal lobe caused distortion of the patient's perception of faces, as recently reported (Parvizi et al., 2012). Our results support the causal role of the PPA in the perception of visual scenes, demonstrate that electrical stimulation of higher order visual areas can induce complex hallucinations, and also reaffirm direct electrical brain stimulation as a tool to assess the function of the human cerebral cortex. <br/> <a href="http://www.jneurosci.org/content/34/16/5399" target="_blank">http://www.jneurosci.org/content/34/16/5399</a></p> This group is a treasure trov…tag:kkartlab.in,2013-10-20:2816864:Comment:1112832013-10-20T05:40:19.377ZAnand G.V.https://kkartlab.in/profile/AnandGV
<p>This group is a treasure trove! Really, I mean it!</p>
<br></br>
There is nothing paranormal about near-death experiences: how neuroscience can explain seeing bright lights, meeting the dead, or being convinced you are one of them<br></br>
<a href="http://www.sciencedirect.com/science/article/pii/S1364661311001550" target="_blank">http://www.sciencedirect.com/science/article/pii/S1364661311001550</a><br></br>
--…<br></br>
<p>This group is a treasure trove! Really, I mean it!</p>
<br/>
There is nothing paranormal about near-death experiences: how neuroscience can explain seeing bright lights, meeting the dead, or being convinced you are one of them<br/>
<a href="http://www.sciencedirect.com/science/article/pii/S1364661311001550" target="_blank">http://www.sciencedirect.com/science/article/pii/S1364661311001550</a><br/>
--<br/>
<a href="http://www.ncbi.nlm.nih.gov/pubmed/25301715" target="_blank">http://www.ncbi.nlm.nih.gov/pubmed/25301715</a><br/>
AWARE-AWAreness during REsuscitation-a prospective study.<br/>
<br/>
Abstract<br/>
BACKGROUND:<br/>
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Cardiac arrest (CA) survivors experience cognitive deficits including post-traumatic stress disorder (PTSD). It is unclear whether these are related to cognitive/mental experiences and awareness during CPR. Despite anecdotal reports the broad range of cognitive/mental experiences and awareness associated with CPR has not been systematically studied.<br/>
METHODS:<br/>
<br/>
The incidence and validity of awareness together with the range, characteristics and themes relating to memories/cognitive processes during CA was investigated through a 4 year multi-center observational study using a three stage quantitative and qualitative interview system. The feasibility of objectively testing the accuracy of claims of visual and auditory awareness was examined using specific tests. The outcome measures were (1) awareness/memories during CA and (2) objective verification of claims of awareness using specific tests.<br/>
RESULTS:<br/>
<br/>
Among 2060 CA events, 140 survivors completed stage 1 interviews, while 101 of 140 patients completed stage 2 interviews. 46% had memories with 7 major cognitive themes: fear; animals/plants; bright light; violence/persecution; deja-vu; family; recalling events post-CA and 9% had NDEs, while 2% described awareness with explicit recall of 'seeing' and 'hearing' actual events related to their resuscitation. One had a verifiable period of conscious awareness during which time cerebral function was not expected.<br/>
CONCLUSIONS:<br/>
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CA survivors commonly experience a broad range of cognitive themes, with 2% exhibiting full awareness. This supports other recent studies that have indicated consciousness may be present despite clinically undetectable consciousness. This together with fearful experiences may contribute to PTSD and other cognitive deficits post CA.<br />
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Rare Medical Conditions and Suggestive Past-Life Memories: A Case Report and Literature Review<br />
<a href="http://www.sciencedirect.com/science/article/pii/S1550830713002073" target="_blank">http://www.sciencedirect.com/science/article/pii/S1550830713002073</a><br />
We aim to report the case of a 38-year-old male with suggestive past-life memories during a regression session and to show how these memories were related to unusual medical conditions: (1) isolated obstruction of the right coronary artery in a young patient, (2) omental infarction, and (3) right aortic arch with isolation of the left subclavian artery. These conditions were related to the following suggestive past-life memories: (1) a priest who committed suicide with a crucifix nailed to his chest and (2) a medieval weapon (skull flail) hitting his cervical and left back region. There was an intriguing relation between the patient's suggestive past-life memories and rare medical conditions. In this article, the authors highlight possible explanations, rarity of findings, and similarities/differences from previous cases and potential pitfalls in this area. http://esciencenews.com/artic…tag:kkartlab.in,2013-08-16:2816864:Comment:1065832013-08-16T06:00:07.708ZDr. Krishna Kumari Challahttps://kkartlab.in/profile/DrKrishnaKumariChalla
<p><a href="http://esciencenews.com/articles/2013/08/15/visualized.heartbeat.can.trigger.out.body.experience" target="_blank">http://esciencenews.com/articles/2013/08/15/visualized.heartbeat.can.trigger.out.body.experience</a><br></br> Visualized heartbeat can trigger 'out-of-body experience'<br></br> A visual projection of human heartbeats can be used to generate an "out-of-body experience," according to new research to be published in Psychological Science, a journal of the Association for…</p>
<p><a href="http://esciencenews.com/articles/2013/08/15/visualized.heartbeat.can.trigger.out.body.experience" target="_blank">http://esciencenews.com/articles/2013/08/15/visualized.heartbeat.can.trigger.out.body.experience</a><br/> Visualized heartbeat can trigger 'out-of-body experience'<br/>
A visual projection of human heartbeats can be used to generate an "out-of-body experience," according to new research to be published in Psychological Science, a journal of the Association for Psychological Science. The findings could inform new kinds of treatment for people with self-perception disorders, including anorexia. The study, conducted by Jane Aspell of Anglia Ruskin University in the UK and Lukas Heydrich of the Swiss Federal Institute of Technology in Lausanne, is novel in that it shows that information about the internal state of the body -- in this case, the heartbeat -- can be used to change how people experience their own body and self.</p>
<p>Volunteers in the study were fitted with a head mounted display (HMD), which served as "virtual reality goggles." They were filmed in real time by a video camera connected to the HMD, which allowed them to view their own body standing two meters in front of them.</p>
<p>By also recording the volunteers' heartbeat signals using electrodes, the timing of the heartbeat was used to trigger a bright flashing outline which was superimposed on the virtual body shown via the HMD.</p>
<p>After watching the outline flash on and off in sync with the heartbeat for several minutes, the subjects experienced a stronger identification with the virtual body, reporting that it felt more like their own body. They also perceived that they were at a different location in the room than their physical body, reporting feeling closer to their double than they actually were, and they experienced touch at a different location to their physical body.</p>
<p>"This research demonstrates that the experience of one's self can be altered when presented with information about the internal state of one's body, such as a heartbeat," says Aspell.</p>
<p>"This is compatible with the theory that the brain generates our experience of self by merging information about our body from multiple sources, including the eyes, the skin, the ears, and even one's internal organs."</p>
<p>In the future, Aspell hopes the research might help people suffering with self-perception problems, including anorexia and body dysmorphic disorder. She is currently working on a study about "yo-yo dieters" and how their self-perception changes as they gain and lose weight.</p>
<p>"Patients with anorexia, for example, have a disconnection from their own body," Aspell added. "They look in the mirror and think they are larger than they actually are. This may be because their brain does not update its representation of the body after losing weight, and the patient is therefore stuck with a perception of a larger self that is out of date."</p>
<p>Aspell concludes that "this experiment could be adapted to help people 'reconnect' with their current physical appearance. It could help them realize what the 'real me' actually looks like."</p>
<p>In addition to Aspell and Heydrich, co-authors on the study include Guillaume Marillier, Tom Lavanchy, Bruno Herbelin, and Olaf Blanke., all of the Swiss Federal Institute of Technology in Lausanne, Switzerland.</p>
<p>The study was supported by the Swiss National Science Foundation (Grants 33CM30-124089; Sinergia Grant CRSII1-125135: Balancing Self and Body) and the Fondation Bertarelli.<br/> Source: Association for Psychological Science</p> Scientists shed light on near…tag:kkartlab.in,2013-08-13:2816864:Comment:1059402013-08-13T05:28:49.829ZDr. Krishna Kumari Challahttps://kkartlab.in/profile/DrKrishnaKumariChalla
<p>Scientists shed light on near-death visions<br></br> <a href="http://www.dailytelegraph.com.au/technology/sci-tech/scientists-she" rel="noopener" target="_blank">http://www.dailytelegraph.com.au/technology/sci-tech/scientists-she</a>...<br></br> Scientists shed light on near-death visions <br></br> THERE may be a scientific explanation for the vivid near-death experiences, such as seeing a shining light, that some people report after surviving a heart attack.</p>
<p>Apparently, the brain keeps on…</p>
<p>Scientists shed light on near-death visions<br/> <a href="http://www.dailytelegraph.com.au/technology/sci-tech/scientists-she" target="_blank" rel="noopener">http://www.dailytelegraph.com.au/technology/sci-tech/scientists-she</a>...<br/> Scientists shed light on near-death visions <br/> THERE may be a scientific explanation for the vivid near-death experiences, such as seeing a shining light, that some people report after surviving a heart attack.</p>
<p>Apparently, the brain keeps on working for up to 30 seconds after blood flow stops, according to a study published in the Proceedings of the National Academy of Sciences.</p>
<p>University of Michigan scientists did their research on nine lab rats that were anesthetised and then subjected to induced cardiac arrest as part of the experiment.</p>
<p>In the first 30 seconds after their hearts were stopped, they all showed a surge of brain activity, observed in electroencephalograms (EEGs) that indicated highly aroused mental states.</p>
<p>"We were surprised by the high levels of activity," said senior author George Mashour, professor of anesthesiology and neurosurgery at the University of Michigan.</p>
<p>"In fact, at near-death, many known electrical signatures of consciousness exceeded levels found in the waking state, suggesting that the brain is capable of well-organised electrical activity during the early stage of clinical death.''</p>
<p>Similar results in terms of brain activity were seen in rats that were asphyxiated, the researchers said.</p>
<p>"This study tells us that reduction of oxygen or both oxygen and glucose during cardiac arrest can stimulate brain activity that is characteristic of conscious processing," said lead author Jimo Borjigin.</p>
<p>"It also provides the first scientific framework for the near-death experiences reported by many cardiac arrest survivors."</p>
<p>About 20 per cent of people who survive cardiac arrest report having had visions during a period known to doctors as clinical death.</p>
<p>Mainstream science has long considered the brain to be inactive during this period.</p>
<p>Ms Borjigin said she hopes her team's latest study "will form the foundation for future human studies investigating mental experiences occurring in the dying brain, including seeing light during cardiac arrest."</p>
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