A brain-damaged patient with an unusual perceptuomotor deficit

Article Abstract:

The study of a brain-damaged patient shows that the occipital region deciphers the visual information and relays it to the motor cells. When two objects whose function was similar were placed in the area of her central vision she reported seeing only one but could manipulate both. However when the objects were not related her actions were uncoordinated. This dysfunction was limited to her central vision and when two unrelated objects are placed in her peripheral vision area she can identify and point to both.

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Exercise and brain neurotrophins

Article Abstract:

Physical activity increases the brain-derived neurotrophic factor (BDNF), which is the primary cause for the survival and function of neurons. The BDNF gene expression is also increased by physical exercises. This indicates that mental function in old age is influenced by the physical exercises performed.

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Telling the brain about pain

Article Abstract:

Issues are presented concerning the hypersensitivity to pain in the body which frequently results from an injury to a different part of the body. The coordination of this process by the brain is discussed.

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