The Human Brain And The Brain Essay

The Human Brain And The Brain Essay

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Introduction
The human brain has three major components, which are the brain stem, cerebellum, and cerebrum. The brain stem is responsible for connecting the brain to the spinal cord. The brain stem controls breathing, digestion, heart rate and other involuntary processes. The cerebellum is involved in some cognitive functions such as language, attention and emotional functions such as fear or pleasure, but the cerebellum mainly controls balance and motor controls. The cerebrum is split into two different hemispheres – left and right. The cerebrum is protected by the cerebral cortex, which is a protective sheet of neural tissue. The cerebral cortex also protects the thalamus, hypothalamus and pituitary gland. The thalamus receives information from the brain stem and spinal cord and delivers the information to the cerebral cortex. The hypothalamus and pituitary gland control instinctive functions, body temperature and behavioral responses such as feeding, drinking, sexual response, aggression and pleasure. (Mastin, 2010)

Figure 1: Lobes of the Cerebral Cortex

(Mastin, 2010)
The cerebral cortex is responsible for memory, attention, perceptual awareness, language and thought. The cerebral cortex is divided into four main lobes or regions. The lobes cover both hemispheres. The lobes or regions are the frontal lobe, parietal lobe, temporal lobe, and occipital lobe. The frontal lobe is responsible for functions such as decision making, conscious thoughts, and higher mental functions. Located in the frontal lobe is the prefrontal cortex. The prefrontal cortex processes short-term memories and stores long-term memories. If humans make a effort to retain a memory, then the prefrontal cortex will retain the memory, thus making it...


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...the night improves human ability to perform spatial task. A full night sleep is essential for learning. Without a full night sleep, learning may or may not occur. NREM sleep is when the brain is about to rest, not all of the brain but most of the brain rest. REM sleep is when the brain is in a deep sleep. (Sceid, 2012)
Hypothesis
A vocabulary test consisting of five unusual words will be administered to three groups of students. The treatment group will be exposed to the recording while they are asleep. The control group will not be exposed to the recording. The third group will be exposed to the recording while they are awake. The experiment is over a span of four days. A pretest and posttest will be administered. Both test will look the same and ask the same questions. It is expected that there will be significant difference between the two groups test scores.

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