This website uses its own and third-party cookies. Some of these cookies are used to develop analytical statistics of visits to the webpage, others to manage advertising or even others are necessary for the correct management of the site. If you continue to browse or click in accept we consider you accept the conditions for their use. You can get more information, or learn how to change the settings in our cookies policy?
Versión Española Versión Mexicana Ibercampus English Version Version française Versione italiana

15/7/2020  
    Ibercampus  | Editorial Board | Who we are | Ideology | Contact | Advertising rates | Subscription | RSS RSS
Policies
Inclusion policies
R&D
Employment
Economics
Culture
Green strategies
Health
Society and consumer
Sports
Debates
Interviews
Education
Grants & internships
Training
Trends
Enterprises & CSR
 Enterprises & CSR
ACNUR
AEGON
AIR LIQUIDE
ALCATEL-LUCENT
ALLIANZ
ARCELORMITTAL
ASIFIN
ASSICURAZIONI GENERALI
AXA
BANCO SANTANDER
BASF
BAYER
BBVA
BNP PARIBAS
CARREFOUR
DAIMLER AG
DEUTSCHE BANK
DEUTSCHE BÖRSE
DEUTSCHE TELEKOM
E.ON
ENEL
ENI
FORTIS
FRANCE TÉLÉCOM
GROUPE DANONE
IBERDROLA
INDITEX
ING GROUP
INTESA SANPAOLO
L'ORÉAL
LVMH
MUNICH RE
NOKIA
PHILIPS
RENAULT
REPSOL YPF
RWE
SAINT GOBAIN
SANOFI-AVENTIS
SAP AG
SCHNEIDER ELECTRIC
SIEMENS AG
SOCIÉTÉ GÉNÉRALE
SUEZ
TELECOM ITALIA
TELEFÓNICA
TOTAL S.A.
UNICREDIT
UNILEVER
VINCI
VIVENDI
VOLKSWAGEN

R&D
University of Wisconsin-Madison

Researchers use brain scans to predict people´s dreams


A team of scientists from Wisconsin have unpicked the regions of the brain involved in dreaming and even claim to be able to predict the contents of a dream based on a person´s brain activity. The new findings promise to have important ramifications on our understanding of the purposes of dreams and of human consciousness itself.
Ibercampus 17/4/2017 Send to a friend
Comparte esta noticia en TwitterFacebookTwitterdel.icio.usYahooRSS
Typically a person is said to be dreaming when they are in rapid-eye-movement (REM) sleep, indicated in the brain by high-frequency electrical activity. However, dreaming outside of REM sleep is also possible but the mechanisms behind this have not been well understood… until now.

‘It seemed a mystery that you can have both dreaming and the absence of dreaming in these two different types of stages,’ said Francesca Siclari, co-author of the research from the University of Wisconsin-Madison in the US. However, the research now seems to have solved the mystery.

Published in ‘Nature Neuroscience’, and including not only the US partners but also scientists from Italy and Switzerland, the study shows that when dreaming was reported in both REM and non-REM sleep, a decrease in low-frequency activity occurred in the posterior cortical region. This is an area at the back of the brain associated with spatial reasoning and attention. The research team say they could correctly predict whether a volunteer was dreaming 92 % of the time, simply by monitoring activity in this ‘hot zone’.

Additionally, the team discovered that dreaming about faces was linked to increased high-frequency activity in the region of the brain involved in facial recognition. Dreams involving spatial perception, movement and thinking were similarly linked to the corresponding parts of the brain that handle those tasks and process in waking life.

To reach these findings, the researchers carried out a series of experiments involving 46 participants. All of them had their brain activity monitored using an electroencephalogram (EEG) net worn on the head, covered in 256 electrodes. The participants were woken periodically, then asked whether or not they had been dreaming. They first looked specifically at REM and non-REM sleep, noting that volunteers reported they had dreamt when the ‘hot zone’ was activated, regardless of what state of sleep they were in. ‘Overall in the whole experiment, we did over a thousand awakenings,’ commented Siclari.

In a second experiment, the participants were asked to describe the content of their dreams based on key themes the neuroscientists could identify in the posterior cortex: the aforementioned faces, spatial setting, movement and speech. If a volunteer reported hearing speech in their dream, it would correlate with the region of the brain responsible for language and understanding; if they dreamt about people, the region responsible for facial recognition was ignited. ‘This means that we probably use the same areas of the brain during dreaming, as we do when awake, explaining the sense of reality a dream often portrays for an individual,’ explained Siclari.

What was most exciting for the team was the fact that they could use these findings to predict whether participants had dreamt or not when asleep. In an experiment with 7 participants, they managed to correctly predict instances of dreaming an impressive 87 % of the time.

Moving forward, greater understanding of changes in the ‘hot zone’ and what causes them may reveal whether dreaming has a specific purpose, for example in memory processing. Casting the net wider, the study authors also claim that their results could help shed light on the very nature of consciousness itself, revealing what happens in the brain during sleep when we switch from being unconscious to having conscious experiences.

Co-author Giulio Tononi commented that the experiments will help to ‘zoom in on the brain regions that truly matter for consciousness.’

Other issues R&D
China, Germany, Japan, Korea and the United States dominate global innovation - WIPO report 2019
New methodology developed to monitor patients with glioblastoma
Scientists find a place on Earth where there is no life
The embryonic origin of the Cyclops eye
Graphene activates immune cells helping bone regeneration in mice
Jurassic dinosaurs could have been dispersed between Africa and Europe 145 years ago
China´s Chang´e-4 probe lands on the moon
Artificial intelligence for studying the ancient human populations of Patagonia.
Chinese and European scientists propose 28 complementary colours
EU-wide rules for safety of drones approved by European Parliament

Subscribe free to our newsletter
Human Capital
Mobilizing commitment around change
Marta Santos Romero
Vanity Fea
Let´s get serious with Coronavirus
José Ángel García Landa
We can all be leaders
VIDEOCOMMUTING A NEW ORGANIZATIONAL REALITY THAT POSITIVELY IMPACTS EMPLOYEES
Mar Souto Romero
Financial inclusion
Financial Education For All!
Carlos Trias
Brusselian Lights
European elections (I): which words are more used in the European political manifestos?
Raúl Muriel Carrasco
Humor and Political Communication
Comisión de Arbitraje, Quejas y Deontología (Spain) (3) You can´t be too careful
Felicísimo Valbuena
Want your own blog? Want to be read by universities?
Find out here
Books
"Tthe study of human behaviour was political from the beginning"
The EU "An Obituary"
Startup Cities "Why Only a Few Cities Dominate the Global Startup Scene"
Blockchain Revolution "How the Technology Behind Bitcoin and Cryptocurrency Is Changing the World "
Doughnut Economics "Seven Ways to Think Like a 21st-Century Economist "
The People vs Tech "How the Internet Is Killing Democracy"
Theses and dissertations
1 Mobilizing commitment around change
Legal Advise | Privacy Policy | Editorial Board | Who we are | Ideology | Contact | Advertising rates | RSS RSS