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Brain Processes

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Akhila Kondaka

on 12 February 2013

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Transcript of Brain Processes

Question: How does brain tissue behave differently when a human is active versus being asleep?

Hypothesis: If the state of the human body is changed, between being asleep and being active, then the tissue and the cells will remain the same in the brain because although the brain is passive, the human brain remains active.

Experimental Design
IV: state of human
DV: different behaviors of tissue
Control: asleep human
Question: How does brain tissue behave differently when a human is active versus being asleep?
Hypothesis: If the state of the human body is changed, between being asleep and being active, then the tissue and the cells will remain the same in the brain because although the brain is passive, the human brain remains active.
Experimental Design
IV: state of human
DV: different behaviors of tissue
Control: asleep human Brain Tissue and Activity By: Akhila Kondaka and Azeeza Hasan Question: How does brain tissue behave differently when a human is active versus being asleep?

Hypothesis: If the state of the human body is changed, between being asleep and being active, then the tissue and the cells will remain the same in the brain because although the body is passive, the human brain remains active.

Experimental Design
IV: state of human
DV: different behaviors of tissue
Control: asleep human The image to the right displays the brain at a dormant time. There are five stages the brain encounters during the process of going to sleep. During these times, the brain and tissue inside the brain are quite active and show cellular energy coming back when it is awake. This image displays the brain during active times. Although one would assume that the brains activity would correspond to the actual physical activity, however it does not. When a human is awake, it is similar to when he or she is dreaming. The human brain can also go into a sleeping stage when it is awake as well. electroencephalograms (EEGs) and positron emission tomography (PET scans) Data Table 2: Brain Activity During Process of Sleep Stages of Sleep Observations Data Table 1: Different tissues in the brain specialize in different functions. The tissues also look different; for example, in the magnification of the oligodendrocyte tissue, the axons are visible because this tissue serves as an insulator.

Data Table 2: As the stages that the brain undergoes progresses, the muscles become more relaxed and body becomes at ease. Also, for example, the waves in stage four seem to have a higher amplitude than in stage 1 and the other stages. Fibrous Astrocytes (Objective 40x) Types of Tissue in the Brain Data Table 1: Glial Cells and Functions Types of Tissue in the Brain Microglia (Objective 400x) Oligodendrocytes (Objective 40x) Types of Tissue in the Brain Data Analysis According to the data, similarities and differences in the actual tissue and cells of the brain do not undergo drastic changes while the brain is dormant. However, according to the stages of sleep data table 2, it can be shown that brain activity itself does go through changes. The waves produced by the brain vary throughout the five stages. In data table 1, the different tissues of the brain serve and specialize in different functions. Consider the Microglia; this tissue helps get rid of excess debris that may be found in the CNS (central nervous system). The structure of the different types of tissue help relate to the function. Brain tissue is primarily composed of nerves and ganglion. Nerves such as the axons and myelin sheath connect nerves for communication process. This nerve tissue can be different for a sleeping brain, however it is not much of a variation. Conclusion Our Hypothesis was supported by the data that we collected. The brain does not go through drastic changes while the brain is dormant but the brain activity itself does go through changes during sleep. It was hypothesized that even though the human body may change its state, the tissue in the brain would not. The hypothesis was supported because according to research and data collected, it can be shown that the functions and structure of the tissue remain constant throughout the life. Similarities appeared in the different types of brain tissue; for example, the Astrocytes and the Oligodendrocytes both provided and physically strengthened support for the neurons. There were differences in the function as well in that the Microglia was the only tissue responsible for removing debris and cleaning out the CNS.
With this question, research can branch off into many topics. Brain activity during dreams versus brain activity without dreams is a related question that could be researched. Also different functions for different parts of the brain could be researched and why some people are more dominant in their left side versus their right side, or vice versa. Bibliography "Types Of Disorders In Human Body | Coronary Arteries." Coronary Arteries. N.p., n.d. Web. 6 Feb.
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