Uncertainty Is Your Friend, Part III: Emotions Are All of the Above All available evidence suggests that the brain has enormous flexibility to do a lot of different things at one time. Mental focus is hard because it forces the brain to concentrate its resources, something it is naturally inclined to do only with the prospect of reward or in the face of threat.We lose sight of brain flexibility in emotions in part because when we express an emotion, it seems like
Early visual areas of the brain may have a role in memory The traditional view is that perceptual information is processed in early sensory regions of the brain, such as primary visual cortex, before being passed on to memory systems subserved by "high-order" brain areas, such as the prefrontal and inferotemporal cortices. Aside from being an oversimplification, a further problem with this account is that the the high-order brain regions don't have the
Doctors Test Targets For Deep Brain Stimulation In Parkinson Surgery Doctors have compared the two current target areas of deep brain stimulation surgery, or DBS. Investigators found that DBS in either brain target effectively treated motor symptoms such as tremors, stiffness and slowness. However, DBS also produced unique effects depending on the target location, especially in patients' moods and mental sharpness.
How Brain Remembers Single Events Single events account for many of our most vivid memories -- a marriage proposal, a wedding toast, a baby's birth. Until a recent discovery, however, scientists knew little about what happens inside the brain that allows you to remember such events.
The Human Brain Is On The Edge Of Chaos Researchers have provide new evidence that the human brain lives "on the edge of chaos," at a critical transition point between randomness and order. The study provides experimental data on an idea previously fraught with theoretical speculation.
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