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The Neuroscience Portal
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Neuroscience is a scientific discipline that studies the structure, function, development, genetics, biochemistry, physiology, pharmacology, and pathology of the nervous system. Traditionally it is seen as a branch of biological sciences. However, recently there has been a convergence of interest from many allied disciplines, including psychology, computer science, statistics, physics, philosophy, mathematics, and medicine. The scope of neuroscience has now broadened to include any systematic scientific experimental and theoretical investigation of the central and peripheral nervous system of biological organisms. The methodologies employed by neuroscientists have been enormously expanded, from biochemical and genetic analysis of dynamics of individual nerve cells and their molecular constituents to imaging representations of perceptual and motor tasks in the brain.

Furthermore, neuroscience is at the frontier of investigation of the brain and mind. The study of the brain is becoming the cornerstone in understanding how we perceive and interact with the external world and, in particular, how human experience and human biology influence each other. It is likely that the study of the brain will become one of the central intellectual endeavors in the coming decades.

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Neuroscience News


Pain: Capsaicin, the active compound in chili peppers, is found to work in a anaesthetic method which, unlike existing local anaesthetic methods, would not block other motor and sensory transmissions from the affected area. [1]

Neuronal development: In a study conducted by Oxford University, on January 11th 2007, researchers found that brains of newborns had almost double (11.2 million) the amount of neurons in the medial dorsal nucleus than did adults (6.43 million), whereas this structure had more than triple the number of glial cells in adults (36.3 million) compared to newborns (10.6 million). [2]

Neurotransmission:More than a 100 neuropeptides identified in the honey bee brain. Researchers at the University of Illinois have reported these in the journal Science. They hope that this will lead to better insight into their complex social behavior [3]

Cognitive neuroscience:Erotic images potently elicit unconscious brain activity. In a study published in the journal PNAS, researchers have demonstrated that the brain is able to unconsciously pick out and respond to erotic images even when noise suppresses their conscious knowledge. [4]

References

  1. ^ Research paper and naturenews article
  2. ^ Oxford Journals entry on comparison between adult and newborn neuron counts
  3. ^ Honeybee neuropeptides
  4. ^ Erotic brain
...Archive
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Did you know...

...that the human brain contains more than 100,000,000,000 (100 billion) neurons?

...that nerve impulses can travel at 120 meters/second?

...that the amygdala plays an important role in the processing and memory of emotional reactions?

...that Prozac acts by inhibiting reuptake of serotonin in brain neurons?

...that some neurons are over a meter long?

...that the cerebellum (the region behind the brainstem) contains half of the neurons in the brain?

...that when areas of the brain are damaged other areas can actually take over the job of the damaged area?

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