Read the following text. As you read it, try to empty your mind. When you encounter grammatical errors or jargon that is impossible to understand, do not try to translate what you are reading. Rather, become one with the obscurity. Read slowly, thoughtlessly, with emptiness of purpose, as though the words were entering your eyes, traveling through your head, and leaving through your ears. The ultimate understanding will be achieved when you reach the end of the abstract and have understood nothing:
Recent neuroimaging studies have identified a set of brain regions that are metabolically active during wakeful rest and consistently deactivate in a variety the performance of demanding tasks. This “default network” has been functionally linked to the stream of thoughts occurring automatically in the absence of goal-directed activity and which constitutes an aspect of mental behavior specifically addressed by many meditative practices. Zen meditation, in particular, is traditionally associated with a mental state of full awareness but reduced conceptual content, to be attained via a disciplined regulation of attention and bodily posture. Using fMRI and a simplified meditative condition interspersed with a lexical decision task, we investigated the neural correlates of conceptual processing during meditation in regular Zen practitioners and matched control subjects. While behavioral performance did not differ between groups, Zen practitioners displayed a reduced duration of the neural response linked to conceptual processing in regions of the default network, suggesting that meditative training may foster the ability to control the automatic cascade of semantic associations triggered by a stimulus and, by extension, to voluntarily regulate the flow of spontaneous mentation.
Now, stare at the following graphic untill you see it start to undulate:
Very good. Now, download this paper from PLoS and enjoy learning about Zen and the art of Functional MRI.
Giuseppe Pagnoni, Milos Cekic, Ying Guo, Sheng He (2008). “Thinking about Not-Thinking”: Neural Correlates of Conceptual Processing during Zen Meditation PLoS ONE, 3 (9) DOI: 10.1371/journal.pone.0003083