Michael J. Gelb
September 2003
Introduction Your Brain Is Much Better than You Think.
Although it is hard to overstate Leonardo da Vinci’s brilliance, recent scientific research reveals that you probably underestimate your own capabilities. You are gifted with virtually unlimited potential for learning and creativity. Ninety-five percent of what we know about the capabilities of the human brain has been learned in the last twenty years. Our schools, universities, and corporations are only beginning to apply this emerging understanding of human potential. Let’s set the stage for learning how to think like Leonardo by considering the contemporary view of intelligence and some results of the investigation into the nature and extent of your brain’s potential.
Most of us grew up with a concept of intelligence based on the traditional IQ test. The IQ test was originated by Alfred Binet (1857–1911) to measure, objectively, comprehension, reasoning, and judgment. Binet was motivated by a powerful enthusiasm for the emerging discipline of psychology and a desire to overcome the cultural and class prejudices of late nineteenth-century France in the assessment of children’s academic potential. Although the traditional concept of IQ was a breakthrough at the time of its formulation, contemporary research shows that it suffers from two significant flaws.
The first flaw is the idea that intelligence is fixed at birth and immutable. Although individuals are endowed genetically with more or less talent in a given area, researchers such as Buzan, Machado, Wenger, and many others have shown that IQ scores can be raised significantly through appropriate training. In a recent statistical review of more than two hundred studies of IQ published in the journal Nature, Bernard Devlin concluded that genes account for no more than 48 percent of IQ. Fifty-two percent is a function of prenatal care, environment, and education.
The second weakness in the commonly held concept of intelligence is the idea that the verbal and mathematical reasoning skills measured by IQ tests (and SATs) are the sine qua nons of intelligence. This narrow view of intelligence has been thoroughly debunked by contemporary psychological research. In his modern classic, Frames of Mind (1983), psychologist Howard Gardner introduced the theory of multiple intelligences, which posits that each of us possesses at least seven measurable intelligences (in later work Gardner and his colleagues catalogued twenty-five different subintelligences). The seven intelligences, and some genius exemplars (other than Leonardo da Vinci, who was a genius in all of these areas) of each one, are:
The theory of multiple intelligences is now accepted widely and when combined with the realization that intelligence can be developed throughout life, offers a powerful inspiration for aspiring Renaissance men and women.
In addition to expanding the understanding of the nature and scope of intelligence, contemporary psychological research has revealed startling truths about the extent of your potential. We can summarize the results with the phrase: Your brain is much better than you think. Appreciating your phenomenal cortical endowment is a marvelous point of departure for a practical study of Da Vincian thinking. Contemplate the following: your brain
What happens to your brain as you get older? Many people assume that mental and physical abilities necessarily decline with age; that we are, after age twenty-five, losing significant brain capacity on a daily basis. Actually, the average brain can improve with age. Our neurons are capable of making increasingly complex new connections throughout our lives. And, our neuronal endowment is so great that, even if we lost a thousand brain cells every day for the rest of our lives, it would still be less than 1 percent of our total (of course, it’s important not to lose the 1 percent that you actually use!).
This last point was established first by Pyotr Anokhin of Moscow University, a student of the legendary psychological pioneer Ivan Pavlov. Anokhin staggered the entire scientific community when he published his research in 1968 demonstrating that the minimum number of potential thought patterns the average brain can make is the number 1 followed by 10.5 million kilometers of typewritten zeros.
Anokhin compared the human brain to “a multidimensional musical instrument that could play an infinite number of musical pieces simultaneously.” He emphasized that each of us is gifted with a birthright of virtually unlimited potential. And he proclaimed that no man or woman, past or present, has fully explored the capacities of the brain. Anokhin would probably agree, however, that Leonardo da Vinci could serve as a most inspiring example for those of us wishing to explore our full capacities.