Apr 03, 2009
Own Your Choices
Re-blogged from Info Aesthetics
Own Your Choices aims to reveal how personal choices affect others and characterize one's self. In particular, the website focuses on starting the conversation around topics such as tobacco, health, self-image, culture, alcohol, relationships and school. Users are invited to connect with peers on these issues, to share their opinion and influence the conversation. And by accident, the interface seems driven by simple dynamic graphs of the statists resulting from the data-gathering surveys.
Individual people are represented by small outer sectors on a circle, which are linked to individual profile pages. One can use filters on the right side of the screen, for instance to filter by gender, age or location, or to find like-minded peers, or complete opposites. More colors means more activity.
17:08 Posted in Information visualization | Permalink | Comments (0) | Tags: information visualization
Mar 31, 2009
The underlying anatomical correlates of long-term meditation
The underlying anatomical correlates of long-term meditation: larger hippocampal and frontal volumes of gray matter.
Neuroimage. 2009 Apr 15;45(3):672-8
Authors: Luders E, Toga AW, Lepore N, Gaser C
Although the systematic study of meditation is still in its infancy, research has provided evidence for meditation-induced improvements in psychological and physiological well-being. Moreover, meditation practice has been shown not only to benefit higher-order cognitive functions but also to alter brain activity. Nevertheless, little is known about possible links to brain structure. Using high-resolution MRI data of 44 subjects, we set out to examine the underlying anatomical correlates of long-term meditation with different regional specificity (i.e., global, regional, and local). For this purpose, we applied voxel-based morphometry in association with a recently validated automated parcellation approach. We detected significantly larger gray matter volumes in meditators in the right orbito-frontal cortex (as well as in the right thalamus and left inferior temporal gyrus when co-varying for age and/or lowering applied statistical thresholds). In addition, meditators showed significantly larger volumes of the right hippocampus. Both orbito-frontal and hippocampal regions have been implicated in emotional regulation and response control. Thus, larger volumes in these regions might account for meditators' singular abilities and habits to cultivate positive emotions, retain emotional stability, and engage in mindful behavior. We further suggest that these regional alterations in brain structures constitute part of the underlying neurological correlate of long-term meditation independent of a specific style and practice. Future longitudinal analyses are necessary to establish the presence and direction of a causal link between meditation practice and brain anatomy.
18:02 Posted in Meditation & brain | Permalink | Comments (0) | Tags: meditation, brain correlates





