Seth J Gillihan, John A Detre, Martha J Farah, Hengyi Rao
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Neural Substrates Associated with Weather-Induced Mood Variability: An Exploratory Study Using ASL Perfusion fMRI.
Daily variations in weather are known to be associated with variations in mood. However, little is known about the specific brain regions that instantiate weather-related mood changes. We used a data-driven approach and ASL perfusion fMRI to assess the neural substrates associated with weather-induced mood variability. The data-driven approach was conducted with mood ratings under various weather conditions (N = 464). Forward stepwise regression was conducted to develop a statistical model of mood as a function of weather conditions. The model results were used to calculate the mood-relevant weather index which served as the covariate in the regression analysis of the resting CBF (N = 42) measured by ASL perfusion fMRI under various weather conditions. The resting CBF activities in the left insula-prefrontal cortex and left superior parietal lobe were negatively correlated (corrected p<0.05) with the weather index, indicating that better mood-relevant weather conditions were associated with lower CBF in these regions within the brain's emotional network. The present study represents a first step toward the investigation of the effect of natural environment on baseline human brain function, and suggests the feasibility of ASL perfusion fMRI for such study.
期刊介绍:
Journal of Cognitive Science is an official journal of the International Association for Cognitive Science (IACS, http://ia-cs.org) and published quarterly by the Institute for Cognitive Science at Seoul National University, located in Seoul, Korea. The Association currently consists of member societies of different countries such as Australia, China, Japan, Korea, and European Union. However, paper submission by anyone in the whole world is welcome at any time. Its main concern is to showcase research articles of highest quality and significance within the disciplines of cognitive science, including, but not limited to, philosophy, psychology, linguistics, artificial intelligence, neuroscience, aesthetics, anthropology, and education, insofar as it is deemed to be of interest to those who pursue the study of mind. In particular, we would like to encourage submissions that cross the traditional disciplinary boundaries. The Journal of Cognitive Science (JCS) is published quarterly on 31 March, 30 June, 30 September, 31 December (founded in 2000) as the official journal of International Association for Cognitive Science (IACS) by the Institute for Cognitive Science at Seoul National University. It is a SCOPUS, ESCI, EBSCO, KCI journal. It aims to publish research articles of the highest quality and significance within the disciplines that form cognitive science, including philosophy, psychology, linguistics, artificial intelligence, neuroscience, anthropology, and education for Interdisciplinary Journal. Submissions that cross traditional disciplinary boundaries in either themes or methods are especially encouraged. AI-associated Cognitive Science will be newly reinforced and papers in this area are encouraged to be submitted.