The study of the human intelligence.

The study of intelligence has been one of the most important topics of Psychology throughout the XXth century. From the works of Spearman, Binet and Thurstone, and even today has been constant and polemic.
Today, the intelligence is defined as the mental aptitude to glide, to solve problems, to think in abstract, to learn and understand ideas.
The innate intelligence can be increased by external factors as the environment where the subject develops his capacities, alimentary factors, education, sociocultural habits and hours of sleep.
According to Gardner, creator of the Theory of the multiple intelligencies, in the human being they can differ seven types:
1. Linguistics intelligence
2. Mathematical logic intelligence
3. Spatial intelligence
4. Physics y cinestetica intelligence
5. Musical intelligence
6. Interpersonal intelligence
7. Intrapersonal intelligence
The intelligence is accepted as the product of the environment and genetic variables (80%), but the rest is indefinite because depends of the different cultures.