Oct 12, 2012
Let's follow the girl from my previous post on her journey across an integrated brain cycle from those dehydrating desert to the calm hydrating ocean... The journey from yellow desert to the blue-green ocean (from motivation to goal) always is surprising for the brain! Like drops of water in the ocean combine to form ocean waves, the electrical signals of brain cells form brain waves that originate mainly from the cerebral cortex, but also reflect activities in other parts of the brain. The calming sounds of ocean waves seems to have beneficial effects on the cerebral cortex functions... Keep calm and stay happy!
Oct 11, 2012
Oct 10, 2012
Oct 9, 2012
black hole. I believe strongly that active research concerning mechanisms of Parkinson's disease will lead to new effective therapies in persons with Parkinson's disease. E.g. Ronald Postuma of McGill University in Montreal, Canada, and colleagues have found recently that persons with Parkinson's disease received caffeine showed a significant improvement in tests for motor problems.
Oct 8, 2012
The functional role (motivation, intention, volition etc.) played by any component (e.g. cortical area, neurotransmitter, neuronal population etc.) of the human brain is largely defined by its synaptic connections. Our intentions snaked with our early predecessors synapsida through the more primitive red-to-blue information-to-immediate-action world of ancient reptilians. For decades, acetylcholine was thought of a memory-related neurotransmitter, but now acetylcholine thought to play an important role in executive functions. This CEREBRART artwork shows numerous partly stylised neural cholinergic fibers labelled by choline acetyltransferase (green) tending to establish synaptic connections with one activated pyramidal neural cell with a big nucleus (blue) and nucleolus (red) in the cortex cerebri.
When it comes to human brain volume, bigger doesn't always mean better. Human brains expanded roughly by half between H. erectus and H. sapiens sapiens. The brain scientists aren't sure about the implications of this evolutionary trend. There are some disadvantages of increasing brain size. Big brains are energetically extremely expensive. And as humans continue to evolve, some scientists say our brains are actually getting smaller and admit that the shrinking human brain could eventually signal an evolutionary dumbing-down. This CEREBRART artwork evolves the topic started in my previous posts.
Oct 4, 2012
P.S. The zebrafish, Danio rerio, embryonic brain development (vide infra) has nothing to do with any esoteric interpretation. But I am very grateful for any interesting comments and even esoteric interpretations of my humble scientific-artistic CEREBRART artworks!