Physiological Psychology

Physiological psychology has studied the split-brain hypothesis under which the two halves of the brain perform different functions. Gazzaniga (1967) set out to test what would happen if the two halves of the brain were no longer able to communicate, and he did so by testing visual abilities, tactile stimulation, and auditory abilities for patents who had undergone racial brain surgery. The independent variable was the brain surgery. The dependent variables were changes in sensory abilities. The experimental group had brain surgery, and the control group was the general population without brain surgery. The findings supported the idea that there are two different brains in each person's head, each with different complex abilities. The findings have far-reaching implications for further research and for the treatment of various problems.

Behavioral research allows the researcher to analyze different types of behavior, as in the exper

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lanations and guidelines. Yet, it is also true that this produced a great deal of uncertainty simply because the scientific approach always holds out the possibility of being wrong, something that tradition does not. The scientific methods yields knowledge that is accepted until it is challenged by new evidence, and even as the general public may accept science as being real and true on its face, underlying that is a feeling of immanent change. The emergence of psychology as a discipline, however, did throw doubt on our thought processes and behaviors, for underlying Freudian theory as the idea that our behavior derives from forces of which we are not conscious and over which we normally have no direct control. The new psychology emerged in the 1890s, with men like Dewey pressing for the departure from the practice of analyzing one's thoughts and feelings to the use of the experimental method. One of the things that makes the modern world "modern" and thus different from all that went before was the development of consciousness of self. The word "consciousness" itself emerged in the seventeenth century with a shift in thinking of the human being as only part of the cosmos surrounding him to the individual human being him or
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Approximate Word count = 2699
Approximate Pages = 11 (250 words per page)

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