Bigger Brain Research

Research approaches have multiplied methods and theories to be able to come out with a new conclusion or in order to set evidences. One of the research that was done, was “MORE EXPERIENCE = BIGGER BRAIN? “ by Rosenzweig, M. R., Bennett, E. L., & Diamond, M. C. (1972). Brain changes in response to experience. Scientific American, 226, 22-29, in which different kind of methods was approached, Scientist wanted to know if that animals are raised in a more stimulating environment would it effect brain development. Another research was the theories of “BORN FIRST, BORN SMARTERS?” by Zajonc, R. B., & Markus, G. B. (1975). Birth order and intellectual development. Psychological Review, 82, 74-88 were Robert Zajonc and Gregory Markus Developed a theory explaining the relationship between birth order and intelligence. Rosenzweig, M. R., Bennett, E. L., & Diamond, M. C. (1972) In “MORE EXPERIENCE = BIGGER BRAIN? “ They separated 3 rats and put them in a normal cage. They took 1 more rat and put it in a very small cage with no toys and little food and water. At last they took the last 3 male rats and added them to a cage that was very large and had a lot of food and water and many toys to play
Zajonc, R. B., & Markus, G. B. (1975) They conducted an experiment where each family started with a value of 100. Then each new born infant receives the value of 0. The average intellectual level of a family is 67 (100+100+0=200/3=67) If that same family has another child, that child will contribute 10 points. The family intellectual level will now be 52.5. After all their tests this confirmed their theory. In this method they did not change no environment, there for the result was all based on nature. Every result they got was based on nature, which they confirmed the