Neurociencias
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Aug. 10, 2010 — Ever wonder why some people can sleep through just about anything, while others get startled awake at each and every bump in the night? People who have trouble sleeping in noisy environments often resort to strategies like earplugs or noise-cancelling headphones that muffle the sound, but a new study from investigators at Massachusetts General Hospital (MGH) may lead to ways to block disturbing sounds within the brain. In their report in the August 10 issue of Current Biology , the team reports finding a brain-wave pattern, reflecting activity of a key structure, that predicts the ease at which sleep can be disrupted by noise. "We wanted to investigate what the brain does to promote stable sleep, even in the face of noise, and why some people are better at staying asleep than others," explains Jeffrey Ellenbogen, MD, chief of the MGH Division of Sleep Medicine.
Brain rhythm predicts ability to sleep through a noisy night
THE BRAIN FROM TOP TO BOTTOM
For many years, scientists’ understanding of how the brain processes language was rather simple: they believed that Wernicke’s area interpreted the words that we hear or read, then relayed this information via a dense bundle of fibres to Broca’s area , which generated any words that we spoke in response. But subsequent experiments with brain imaging have revealed the existence of a third region of the brain that is also indispensable for language. This region is the inferior parietal lobule, also known as “Geschwind’s territory”, in honour of the American neurologist Norman Geschwind, who foresaw its importance as early as the 1960s.
Shifts in Pelvic Inclination Angle and Parasympathetic Tone Produced by Rolfing Soft Tissue Manipulation -- Cottingham et al. 68 (9): 1364 -- Physical Therapy The effects of soft tissue manipulation (Rolfing method) were evaluated on young healthy men using two dependent variables: 1) angle of pelvic inclination and 2) parasympathetic activity. Pelvic inclination was assessed by determining the angle of standing pelvic tilt (SPT) with an inclinometer. Autonomic tone was assessed by a measure of cardiac vagal tone (amplitude of respiratory sinus arrhythmia) derived from monitoring heart rate. Thirty-two subjects, preselected for exhibiting an anteriorly tilted pelvis, were randomly assigned to either an Experimental Group (n = 16) that received a 45-minute Rolfing pelvic mobilization session or a Control Group (n = 16) that received a 45-minute control session without manipulation.
Shifts in pelvic inclination angle and parasympathetic tone produced by Rolfing soft tissue manipulation.
June 23, 2010 — Personalities come in all kinds. Now psychological scientists have found that the size of different parts of people's brains correspond to their personalities; for example, conscientious people tend to have a bigger lateral prefrontal cortex, a region of the brain involved in planning and controlling behavior. Psychologists have worked out that all personality traits can be divided into five factors, commonly called the Big Five: conscientiousness, extraversion, neuroticism, agreeableness, and openness/intellect.
Brain structure corresponds to personality
(Fast Company) - Walmart , the world’s largest retailer, embraces social, mobile, and the startup spirit to compete against Amazon. Will it be enough?
Brain Pictures Overview - References, Advice, News, Videos, Coping & Support
Jornais Científicos