Colonoscopy is a common procedure screening for colorectal cancers. Effective bowel preparation is essential to achieve good visual screening results. A recent study suggests guidelines to optimize this preparation.

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Bowel prep for colonoscopy

The amygdala receives visual input from both subcortical and cortical areas.  It is believed that images directly from the subcortex are less refined but reach the amygdala faster (left). Pictures from the cortex are highly detailed but take a longer route (right). The amygdala can be activated in response to a fear cue even before there is conscious awareness of the trigger.

Our brain is not hard-wired. Our state of mind, emotional content of experiences, and the environment in which a memory event happens all affect how, how strong, and how long we remember an experience.

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Remembering ways around

​You remember your way home. Some birds and animals store food for later use and memorize their locations. In both cases, the type of memory involved is referred to as spatial memory.

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Our short term working memory may be processed in a very small, specific area in the brain giving rise to a “bottle neck”, according to two studies reported in the journal Nature.

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