Researchers in the Department of Psychology at Carnegie Mellon University have completed a study challenging a popular theory that claims bodily states can guide decision-making when conscious knowledge isn’t available. The paper, written by doctoral student Tiago V. Maia and James L. McClelland, the Walter Van Dyke Bingham Professor of Psychology and Cognitive Neuroscience, will be published online next week in the Proceedings of the National Academy of Sciences.
The study examines the somatic marker hypothesis, which states that when an individual faces a decision, each alternative elicits a bodily state – a somatic marker – that corresponds to an emotional reaction. According to the hypothesis, these markers influence decision-making and can guide the individual to make an advantageous choice even in the absence of conscious knowledge to guide the decision. The somatic marker hypothesis was proposed by neurologist Antonio Damasio in his best-selling book, "Descartes’ Error: Emotion, Reason, and the Human Brain."
Maia and McClelland found that in testing the hypothesis using a simple card game, Damasio and his colleagues used a test of conscious knowledge that was not sensitive enough to detect everything the participants knew about the game; thus, individuals may have been guided by their knowledge, rather than their bodily states. Maia and McClelland also reviewed other evidence used to support the somatic marker hypothesis, and found that, in all cases, recent results suggest alternative interpretations for that evidence.
Jonathan Potts | EurekAlert!
Smart Data Transformation – Surfing the Big Wave
02.12.2016 | Fraunhofer-Institut für Angewandte Informationstechnik FIT
Climate change could outpace EPA Lake Champlain protections
18.11.2016 | University of Vermont
In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.
Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...
Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...
A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.
The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...
16.11.2016 | Event News
01.11.2016 | Event News
14.10.2016 | Event News
07.12.2016 | Health and Medicine
07.12.2016 | Life Sciences
07.12.2016 | Health and Medicine