Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

When rules change, brain falters

31.07.2012
For the human brain, learning a new task when rules change can be a surprisingly difficult process marred by repeated mistakes, according to a new study by Michigan State University psychology researchers.
Imagine traveling to Ireland and suddenly having to drive on the left side of the road. The brain, trained for right-side driving, becomes overburdened trying to suppress the old rules while simultaneously focusing on the new rules, said Hans Schroder, primary researcher on the study.

“There’s so much conflict in your brain,” said Schroder, “that when you make a mistake like forgetting to turn on your blinker you don’t even realize it and make the same mistake again. What you learned initially is hard to overcome when rules change.”

The study, in the research journal Cognitive, Affective & Behavioral Neuroscience, is one of the first to show how the brain responds to mistakes that occur after rules change.

Study participants were given a computer task that involved recognizing the middle letter in strings such as “NNMNN” or “MMNMM.” If “M” was in the middle, they were to press the left button; if “N” was in the middle, they were to press the right. After 50 trials, the rules were reversed so the participants had to press the right button if “M” was in the middle and the left if “N” was in the middle.

Participants made more repeated errors when the rules were reversed, meaning they weren’t learning from their mistakes. In addition, a cap measuring brain activity showed they were less aware of their errors. When participants did respond correctly after the rules changed, their brain activity showed they had to work harder than when they were given the first set of rules.

“We expected they were going to get better at the task over time,” said Schroder, a graduate student in MSU’s Department of Psychology. “But after the rules changed they were slower and less accurate throughout the task and couldn’t seem to get the hang of it.”

Continually making these mistakes in the work environment can lead to frustration, exhaustion and even anxiety and depression, said Jason Moser, assistant professor of psychology and director of MSU’s Clinical Psychophysiology Lab.

“These findings and our past research suggest that when you have multiple things to juggle in your mind – essentially, when you are multitasking – you are more likely to mess up,” Moser said. “It takes effort and practice for you to be more aware of the mistakes you are missing and stay focused.”

In addition to Schroder and Moser, co-researchers include Erik Altmann, associate professor of psychology, and master’s student Tim Moran.

Michigan State University has been working to advance the common good in uncommon ways for more than 150 years. One of the top research universities in the world, MSU focuses its vast resources on creating solutions to some of the world’s most pressing challenges, while providing life-changing opportunities to a diverse and inclusive academic community through more than 200 programs of study in 17 degree-granting colleges.

Andy Henion | EurekAlert!
Further information:
http://www.msu.edu

More articles from Studies and Analyses:

nachricht Innovative genetic tests for children with developmental disorders and epilepsy
11.07.2018 | Christian-Albrechts-Universität zu Kiel

nachricht Oxygen loss in the coastal Baltic Sea is “unprecedentedly severe”
05.07.2018 | European Geosciences Union

All articles from Studies and Analyses >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Future electronic components to be printed like newspapers

A new manufacturing technique uses a process similar to newspaper printing to form smoother and more flexible metals for making ultrafast electronic devices.

The low-cost process, developed by Purdue University researchers, combines tools already used in industry for manufacturing metals on a large scale, but uses...

Im Focus: First evidence on the source of extragalactic particles

For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.

To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...

Im Focus: Magnetic vortices: Two independent magnetic skyrmion phases discovered in a single material

For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.

Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...

Im Focus: Breaking the bond: To take part or not?

Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.

A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...

Im Focus: New 2D Spectroscopy Methods

Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.

"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Leading experts in Diabetes, Metabolism and Biomedical Engineering discuss Precision Medicine

13.07.2018 | Event News

Conference on Laser Polishing – LaP: Fine Tuning for Surfaces

12.07.2018 | Event News

11th European Wood-based Panel Symposium 2018: Meeting point for the wood-based materials industry

03.07.2018 | Event News

 
Latest News

A smart safe rechargeable zinc ion battery based on sol-gel transition electrolytes

20.07.2018 | Power and Electrical Engineering

Reversing cause and effect is no trouble for quantum computers

20.07.2018 | Information Technology

Princeton-UPenn research team finds physics treasure hidden in a wallpaper pattern

20.07.2018 | Materials Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>