2013年7月15日月曜日

Neural Correlates of Risk Perception during Real-Life Risk Communication

Ralf Schmalzle, Frank Hacker, Britta Renner, Christopher J. Honey, and
Harald T. Schupp
J. Neurosci. 2013;33 10340-10347
http://www.jneurosci.org/cgi/content/abstract/33/25/10340?etoc

ヒトfMRI。
現実の生活におけるリスク(H1N1型インフルエンザ)の知覚。
高リスク知覚群と低リスク知覚群では前帯状皮質(ACC)の活動に違いが見られる。
(普通のfMRI解析とは異なり、Intersubject correlation (ISC) に注目している)

During global health crises, such as the recent H1N1 pandemic, the mass media provide the public with timely information regarding risk. To obtain new insights into how these messages are received, we measured neural data while participants, who differed in their preexisting H1N1 risk perceptions, viewed a TV report about H1N1. Intersubject correlation (ISC) of neural time courses was used to assess how similarly the brains of viewers responded to the TV report. We found enhanced intersubject correlations among viewers with high-risk perception in the anterior cingulate, a region which classical fMRI studies associated with the appraisal of threatening information. By contrast, neural coupling in sensory-perceptual regions was similar for the high and low H1N1-risk perception groups. These results demonstrate a novel methodology for understanding how real-life health messages are processed in the human brain, with particular emphasis on the role of emotion and differences in risk perceptions.

0 件のコメント:

コメントを投稿