Inteligência e Testes de QI
Life Extension Factor Klotho Enhances Cognition PDF Versão para impressão Enviar por E-mail

In a paper just published in Cell Reports, Dena Dubal, Lennart Mucke, and their colleagues provide strong evidence that klotho enhances cognitive function, separate from its effects on aging. They started by looking at humans carrying an interesting variant of the KLOTHO gene. The variant was known to be associated with increased longevity, and the authors show that it leads to higher levels of klotho in the blood. Moreover, they show that carriers of the variant exhibit enhanced cognition, scoring higher on multiple tests of various aspects of cognitive function. The results suggest that systemic increases in klotho levels can improve cognitive function. So the authors took the experiments into mice. They found that elevation of klotho levels leads to improved learning and memory, seen in various tasks and shown not to be age-dependent. They went on to describe specific effects on synaptic function and plasticity that may account for the cognitive changes.

The relationship between intelligence and creativity PDF Versão para impressão Enviar por E-mail

The relationship between intelligence and creativity has been subject to empirical research for decades. Nevertheless, there is yet no consensus on how these constructs are related. One of the most prominent notions concerning the interplay between intelligence and creativity is the threshold hypothesis, which assumes that above-average intelligence represents a necessary condition for high-level creativity. While earlier research mostly supported the threshold hypothesis, it has come under fire in recent investigations.

What is giftedness? What is talent? PDF Versão para impressão Enviar por E-mail

There seem to be infinitely variable definitions for these two words. Let's start with the idea of intelligence. Most research suggests that the higher an individual's intelligence, the greater the degree of cognitive, emotional, and spiritual complexity there will be in that person's encounter with the world. In our culture, we tend to award achievement: the highest GPA, the best job, the most academic degrees, and the most money. Giftedness, however, is not about achievements in that sense.

g and the measurement of Multiple Intelligences: A response to Gardner PDF Versão para impressão Enviar por E-mail

Gardner [Gardner, H. (2006-this issue). On failing to grasp the core of MI theory: A response to Visser et al. Intelligence] criticized some aspects of our empirical examination [Visser, B. A., Ashton, M. C., & Vernon, P. A. (2006-this issue). Beyond g: Putting multiple intelligences theory to the test. Intelligence] of his “Theory of Multiple Intelligences”. Specifically, Gardner questioned the construct validity of g, and suggested that the measures we used to test his theory were contaminated with verbal and logical demands. In this reply, we explain that the construct validity of g is well established, pointing out (a) that g is expressed in a wide variety of tasks (not all of which are “school-like” tasks), (b) that g predicts many important criterion variables (not only academic achievement), and (c) that g has a well-established biological basis. With regard to the measures used in our study, we point out that the verbal content of those tasks is unlikely to contribute to individual differences in task performance, and that the logical content of those tasks is consistent with Gardner's description of his intelligence domains.

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