Have brains changed? When I was young the standard knowledge about the brain was that it started out with all the cells it was going to get, and that the best we could do was to hope not to lose too many to profligate living along the way. I recall especially a public service ad of an egg frying: "This is your brain on drugs."
Then in the 1980's and 1990's researchers began to find evidence of brain cell regeneration--'adult neurogenesis.' According to an article in New Scientist by Moheb Costandi, neurobiologist turned freelance writer, "it is now taken for granted that adult neurogenesis occurs in humans, and the idea has revolutionized the way we think about the brain. It is widely believed that physical and mental exercise can stimulate hippocampal neurogenesis that offsets age-related cognitive decline and may protect against depression and Alzheimer's."
Well that would be neat.
And while it's not clear this has all been proven, it is hopeful to think about, as are all the even more recent studies in neuroscience in which brains can be observed at work. Neuroscience is beginning to give us better clues about how humans learn, what kinds of environments enhance learning, what kinds detract. For example there are studies that show that video games (especially the fast-paced shooting games every mother hates) not only increase time on task, but actually improve certain kinds of vision, train people to be better able to ignore distractions, help students learn new tasks faster.
We've mapped the genome, and now we seem to be in the process of mapping the activity of our brains in real time. Perhaps it will take us to someplace brand new--perhaps it will simply reinforce the wisdom of ancient tradition. I've been embarked on several new learning ventures lately, and there is certainly power in that. I'm not sure I've grown any new brain cells, but I can feel a few cobwebs being shaken out, perhaps a few more synapses are firing, and certainly some excitement has taken hold.
This is my brain on learning.
#blogElul is the brainchild of Rabbi Phyllis Sommer, aka Ima on the Bima. The Jewish month of Elul, which precedes the High Holy Days, is traditionally a time of renewal and reflection. It offers a chance for spiritual preparation for the Days of Awe. It is traditional to begin one’s preparation for the High Holy Days during this month with the Selichot, the prayers of forgiveness. We look to begin the year with a clean slate, starting anew, refreshed.
All month, along with Rabbi Sommer and others, I'll be blogging a thought or two for each day to help with the month of preparation. Follow Rabbi Sommer on twitter @imabima for all the #BlogElul posts. You can follow me on twitter @Vicki_Weber. If you decide to blog yourself, check out the list of daily topics and jump in! Be sure to tag your posts on Twitter and Facebook so they can be included on the stream.
