luni, 26 ianuarie 2009

LiveScience: Single Brain Cell Can Hold a Memory

Memory has long been described as a function of brain cells getting together and forming connections. A new study finds single cells can remember things. Full story:

* A recent case (November 18, 2007) is that of a 39 years old Chinese woman, living a perfectly normal life, which, following medical investigations for a general state of dizziness and weakness, found out that she had only half a brain. Two statements:
- Dr. Zhang Linhong, director of Neural Rehabilitation Department at the Wuhan hospital, said: "On the MRI scans we were surprised to see that she only has grey matter on the right side. Our usual understanding is that the left brain controls language. But this patient has no problem communicating with people."
- The woman's mother: "She graduated from high school with very good marks. Her memory is very good. She remembers phone numbers and names immediately.":
* Prozac, used by 40M people, does not work, say scientists... 'St John's Wort plant as effective as Prozac for treating depression', say scientists: