Travel: Food for Our Learning Machines (Our Brains)

As I was consulting the map for the upteemth time in Sydney, I was thinking about standing on my head to get a more realistic view of where I wanted to walk next. I began thinking about how good traveling is for our brains. I walked miles and miles (or km and km) everyday. I know that's good for me. I read maps (straightforwardly or on my head). I planned ahead--where would I go, what did I want to see, where would I be likely to have lunch or dinner, what would I do, what did I want to accomplish? My goodness! I was using those executive function skills to excess.

And Sydney was great! I went to all the museums and especially enjoyed the Aboriginal art. I walked around Darlinghurst and Paddington and went to lots of great galleries and shops. I ferried over to Manly and took the bus to Bondi Beach. I then walked the Spit Bridge to Manly walk (10 km) and the fabulous Bondi Beach to Coogee Walk, one of the great walks in the world.

My favorite: the rockpools. I felt like Burt Lancaser in "The Swimmer." Haven't seen that one? Get it from Netflicks. He relived his life swimming pool to swimming pool in Westchester County, NY (where I used to live). The Rockpools are the swimming pools that have been built into the rock formations along the coast of Sydney. They typically have two concrete walls built into the rocks that then form a pool, anywhere from 20-30 meters to 50-60 meters. They're all salt water pools. The tide washes over and refreshes the pool with a few new fish every day. I love these pools. With my goggles on, it's like the best snorkeling in Hawaii. There are 26 of them around Sydney. Why in the world doesn't the rest of the world have these? They are wonderful! I roamed around Sydney, swimming from pool to pool along my walks. Fabulous.

One of my favorites was the women's pool near Coogee. Although small--20 meters or so-- it was so lovely and friendly. Lots of scantily clad women and kids were jumping in the water, climbing over the crabs crawling along the walkway. I loved the outdoor shower and I unabashedly climbed out of my suit and into my clothes for the rest of the walk. Refreshing to be among the mermaids on the hill.

Everywhere I went, swimming, people asked me: "what about the presidential process?" They all admitted easily to hating Bush. But they were curious about what was next? They were worried about us.

I said, " I don't know what will happen but we hate Bush, too. We're just in a terrible mess. In every possible way."

All the men who wanted to race me in the rockpools nodded in agreement. They want things to be better for us. Because it will be better for them, too.

An Active Mind Is a Healthy Mind

How many studies do we have to see before we accept that exercising our brains makes them highly likely to be healthy throughout our lives? The Chicago Aging Study from the Rush University Medical Center has just released results of yet another aspect of their large, multi-year study. This time, more 700 than folks with an average age of 80 were observed. The people who regularly and consistently engaged in cognitively stimulating activities--reading the newspaper, playing chess, seeing plays, reading and visiting the library--were 2.6 times less likely (almost three times less likely!) to develop dementia and Alzheimer's than those who did not engage in such activities. Even mild cognitive impairment, typically associated with age, was greatly delayed and reduced.

I find it interesting that so many of the activities described were interactive ones. In other words, other people were involved, as in a chess partner or seeing a play or going to the library. I believe we will find in future studies that positive interactions with others is a significant method of motivating us to keep our minds in gear.

More Transitions

Quixit, Inc., the company I started in 2005 to distribute scientifically based casual online games that focus on specific cognitive skills, such as attention and memory, was acquired yesterday by SBT, a French firm based in Lyon, France. As of today, I will no longer be affiliated with the new company, now called HappyNeuron, Inc. In my roles as CEO of neuroscience technology companies, Quixit and previously Scientific Learning Corporation, I have enjoyed getting to know the scientists, researchers, journalists, publishers, and many others so keenly interested in trying to figure out how to add to our knowledge base about healthy lifestyle choices, the impact of nutrition and exercise on brain health, and the major effects of mental stimulation in keeping our minds healthy and agile. So much is known yet so little has made its way to most people. And there is so much work that needs to be done. I look forward to the now-frequent research reports coming out almost on a weekly basis from respected research institutions on these topics and applaud those in the trenches working to prevent and treat diseases of the mind.

I continue to be curious about and interested in brain fitness and how we all can lower the probabilities of age-related cognitive decline, especially Alzheimer's and other kinds of dementia. I've seen first-hand how devastating the effects can be on the patient, family, and friends. The good news? We can all hope and expect that we will see great strides in our lifetimes in what we know about these horrific diseases of the mind.

Change typically forces new learning and is an excellent way to keep our brains in shape. So change is in the air for me and I welcome this opportunity to move into something new and different.

A Strong, Active Body Helps Build a Strong, Active Mind

This week's Newsweek has a done a nice job of emphasizing and summarizing the critical part that physical exercise plays in brain fitness. It's true: whatever is good for our hearts is twice as good for our brains. Exercise helps our bodies efficiently route oxygen to our hearts and brains. I, for one, believe that the complexities of everyday exercises and sports, like walking or dancing or swimming, call on multiple cognitive and physical skills, which we keep trying to separate but are forever and crucially entwined. They should just go together, along with nutrition, as important pieces of the fitness puzzle.

I like the suggestion in the article of an "exercise snack plan": run up and down steps in your house during a TV commercial, walk around your office floor, pace when you talk on the telephone, etc. Hopefully, these will be taken as starters or supplements with ramp-ups in activity the goal.

I personally find that regular exercise enables me to sleep less, sleep better, de-stress, makes my mood more positive and balanced, and energizes me. How can all of that not be good for my brain? Nevermind the other skills needed for my dance class, for example: long-term memory of the basic routine and choreography, concentration (or I'll look like a fool), balance, rhythm, short-term memory to adapt to my partner or the teacher's instructions, hand-eye coordination, visual-spatial skills so I don't bump into the other people, deductive reasoning (what comes next in the sequence?), etc., etc. Wonderful cross-training for the mind and the body and the mind-body connection.

Of course, the danger is that folks will think physical exercise is the magic bullet for brain fitness. As the Newsweek article points out, "Having a big, gorgeous, healthy brain isn't enough, of course; it also has to be full." Yep, exercising those neurons (also called learning) once we've gone them is also a must.

Creativity and the Brain

Last night I saw Bobby McFerrin in concert, accompanied by 12-singer Voicestra. Those 12 voices included well-known and great voices, like that of Janis Siegel, one of the original singers in the Manhattan Transfer. As the program stated, "Voicestra serves as rich compositional palate for Bobby McFerrin's expeditions into the musical universe." Every single rendition we saw on the stage was totally improvised, thoroughly entertaining, original, and energizing. For those of you who may not know Bobby McFerrin, he started his career with that very famous tune, "Don't Worry Be Happy" and has gone on to become one of the most original musicians in the world, easily moving from classical to opera to jazz to any other kind of music and using his voice as a musical instrument. Improvisation is clearly his sweet spot. He even included the audience in some of the improvisations. My advice: travel for miles and miles to get a ticket to a Bobby McFerrin concert!

As I watched the energy and expertise and great entertainment on the stage, I couldn't help but think about the part that creativity plays in brain health.

And along those lines--thanks to Dave Munger of Cognitive Daily for pointing me to recent research by Eviatar and Just that looked at how the brain processes irony and metaphor. I think we need creative skills to figure out language puzzles like metaphors and irony. Using fMRI studies, the researchers discovered that our brains process common metaphors and ironic statement differently from ordinary language, going beyond the usual language centers (usually on the left side of the brain if you're right-handed) to include different areas on both sides of the brain. For reference, regular literal language all gets translated in the usual language centers. I'm not surprised, given the research that has already shown that creative endeavors and creative people use many parts of the brain for creative expression.

I suspect that is why creative expression gets good marks for keeping our brain healthy and fit and reducing the probabilities of Alzheimer's and dementia. I'm just trying to visualize the fMRIs of McFerrin and Voicestra's brains during that concert: lots of big splashes of color all over both sides, I suspect. I also wonder what happened to our brains in the audience as we watched this creativity in process. We were not passive. We jumped at the chance to interact when McFerrin pointed to us. I bet our brains were pretty busy, too (on both sides).

Brain Fitness Buzz

The last couple of weeks have been filled with media reports about brain fitness programs. The NY Times weighed in on the topic on the front page on December 27 with "As Minds Age, What's Next? Brain Calisthenics?" This article was quickly syndicated across the US and around the world (the International Herald-Tribune) and became the number one-emailed article of the week. I think we can say with some certainty that brain fitness is a topic of interest to millions and millions of people. Several blogs picked up the drum beat, too. The Today show on NBC put their own spin on the topic on Tuesday morning. Happy Neuron was one of the programs showcased in the NY Times and on the Today show.

I think it's great that the media is picking up on the very real interests of so many people, who are really thinking hard and searching high and low for good science on keeping their mental edge as the years go by (another way to say prevention of Alzheimer's and dementia). I admit that I was irritated by two comments: (l) "just do crosswords" because we know from numerous research studies that crosswords may be fun but don't do much for the brain--they're just too one-dimensional; and (2) why turn to software for brain exercise? why not do something free like learn a language or learn to play a new musical instrument? Hey, last time I checked, those two learning adventures were far from free.

Let's look at the real value of sites like Happy Neuron. Most of us would prefer to take a walk in the park every day but some days it's rainy or we don't have time so we hit the treadmill. Some days we don't have time for learning the cello or practicing Chinese either so one convenient thing to do is go online and exercise specific cognitive skills, like memory, concentration, reasoning, visual-spatial and language skills--all keys to learning and everyday living.

I'm extremely glad that awareness is building: brain exercise should be a part of a healthy lifestyle just like good nutrition and physical exercise. All are critical to our overall health and quality of life.

Brain Health: We're Starting to Test the Right Things

As the director of a longevity center at a respected research institution said to me recently, "We just haven't figured out what to test. We haven't been creative enough." She was referring to our discussion of what kinds of exercises really keep our brains fit. That seems to be changing.

Jonathan McNulty of the School of Medicine and Medical Science, University College, Dublin, has tried a different approach. And it works. His team found that simple yet intensive memorization followed by a rest period resulted in ". . . both metabolic changes in the brain and improved memory performance." The 55- to 70-year-old volunteers were given six weeks for intensive rote memorization tasks, such as memorizing a newspaper article or poetry, of 500 words. They then had six weeks of rest.

Here's the kicker: when tested immediately after the memorization work, there was no change in brain metabolism or memory performance. But after the six-week rest, all of the volunteers showed improvements in verbal and episodic memory (the ability to relate story or tell a joke).

This reminds me of a trick I've long used: if I have a problem I need to figure out, I assign my brain the task, usually before going to sleep, and forget about it. Typically, later (and sometimes immediately when I wake up the next morning), a solution or at least a way of thinking about the problem pops up (without being summoned) in my mind. Our brains clearly need some down time to work on their own without our conscious interference.

Recently, there have been several studies using the Stroop test. That's the one with color words written in a different color (the word blue written in yellow, for example) and you're asked to identify the color of the letters. The distraction of automatic reading of the word makes it challenging to identify the letter color. Several researchers have shown that intensive work on the Stroop test (or similar tests or games) can substantially improve driving skills. Why? Because driving requires concentration--the ability to override distractions and automatic responses and choose the required response.

To me, these studies test the right things and are beginning to prove that practice on cognitive process (fluid intelligence) is just as important as acquired knowledge (crystallized intelligence). It takes both to keep our mental edge.