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Science News for January 27, 2012


The pupils are the windows to the mind

A new study published in Perspectives on Psychological Science explores the use of pupilometry, a technique measuring pupil diameter, to gain insights into human behavior. By analyzing changes in pupil size, researchers can identify what people are paying attention to, shedding light on brain function and cognitive processes.

SourceAssociation for Psychological Science·JournalPerspectives on Psychological Science·DateJan 27, 2012

Assessment of COPD exacerbation severity with the COPD Assessment Test

A new study found that the CAT questionnaire is a reliable tool for assessing COPD exacerbation severity, reflecting both exacerbation length and reduction in lung function. The CAT scores were also weakly related to systemic inflammatory markers and elevated in stable patients with a history of frequent exacerbations.

SourceAmerican Thoracic Society·JournalAmerican Journal of Respiratory and Critical Care Medicine·DateJan 27, 2012

The secret life of proteins

A Northwestern University study identifies a key player in the human immune system, revealing its crucial role in activating the immune response. The protein, STIM1, was found to regulate not only one function but also another critical step in immune activation.

SourceNorthwestern University·JournalNature·DateJan 27, 2012

ONline-learning must synch or sink, researcher says

A University of Alberta researcher found that online undergraduate classes using text-based formats lack reflective engagement and facilitate communication lacking in joy, passion, flavour and urgency. Kanuka recommends integrating audio-visual technologies to better support students and create a more engaging community of learners.

SourceUniversity of Alberta·JournalJournal of Computing in Higher Education·DateJan 27, 2012

Prejudices? Quite normal!

Research from Jena University reveals that prejudice development peaks between 5-7 years of age, but well-designed prevention programs can effectively reduce biases. The study highlights the importance of diverse contacts in reducing sweeping generalizations and discrimination, especially for children from social minorities.

SourceFriedrich-Schiller-Universitaet Jena·JournalChild Development·DateJan 27, 2012

Mind over matter: Patients' perceptions of illness make a difference

Research suggests that patients' perceptions of their illness significantly impact health outcomes, including functioning, healthcare utilization, and mortality. Effective health care treatment plans require consideration of a patient's beliefs about their illness, as they guide decisions about health and treatment adherence.

SourceAssociation for Psychological Science·JournalCurrent Directions in Psychological Science·DateJan 27, 2012

Republicans and democrats less divided than commonly thought

A new study analyzing 40 years' worth of voter data suggests that Americans perceive more political polarization than actual differences exist between parties. Contrary to popular belief, those who perceive greater polarization are more likely to engage in politics, attend rallies, or donate to a party.

SourceSAGE·DateJan 27, 2012

Making memories last

Scientists at the Stowers Institute for Medical Research found that oligomers of a synapse protein are essential for forming long-term memory. The discovery supports a new theory about memory and may have implications for understanding diseases such as Alzheimer's and prion diseases.