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Psy 201 Week Two

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Week Two
DQ1 – Review the Structures of the Brain (Section 3) tutorial located at the following link:
http://media.pearsoncmg.com/pcp/pcp_94178_psych_axia/livepsych/interface/index.htm?
atitle=4.3%20Major%20Brain%20Structures%20and%20Functions&id1=5_8&id2=5_9&id3=5_10 and the
Structures of the Brain (Section 5) tutorial located at the following link:
http://media.pearsoncmg.com/pcp/pcp_94178_psych_axia/livepsych/interface/index.htm?
atitle=Hemispheric%20Specialization&id1=8_1&id2=8_2&id3=8_3&id4=8_5
Describe the different functions of the central core of the brain compared to the cerebral cortex. Why are
both important?
The cerebral cortex of the brain controls the higher mental processes that enhance learning, memory,
thought, and language. It is also divided into four different lobes called occipital, parietal, temporal, and
frontal. The occipital lobes processes visual signals and the parietal lobes contain the somatosensory
cortex which receives sensory information. The temporal lobes help regulate hearing, balance,
equilibrium, as well as emotions and motivation. It also helps in complex visual tasks and contains the
auditory cortex which processes sound. The frontal lobes control over 600 muscles that produce
movement while also containing areas involved in short term memory, thinking, concentration, and many
parts of personality. The central core, or ''old brain'', controls basic functions. It contains the
hypothalamus, responsible for hunger and thirst, the pons which are involved in sleep and arousal, the
medulla, controlling breathing and heartbeat, and the cerebellum which controls bodily balance. Both are
vital because they each do what the other doesn't. The cerebral cortex controls a lot of thinking functions
and movement, while the central core regulates more of the involuntary and subconscious processes.
Day to day living would be much more difficult without both functioning properly.
DQ2 – Define sensation and perception. What is the difference between them? Provide an example.
Sensation is the activation of the sense organs by any source of physical energy. This ranges from a wide
variety of energy such as electricity or fire to physical contact with other objects like water or people.
Perception is the process the brain uses to sort, interpret, analyze, and integrate the stimuli from the
sense organ. The difference between the two is simply that sensation is the act of receiving feeling by the
body and perception is the process of how feeling is interpreted. Each plays an important role in the
feeling process. They allow us to experience feelings while also putting those feelings into a category so
we know what to expect for future reference. An example of sensation is laying out in the sun to get a tan.
The sun causes the senses to react and produce the sensation of heat on the skin. If too much exposure
occurs, the sensation turns into pain because the skin has been burned. The perception is the sun causes
the skin and body to get hot and it is painful if exposed too long.
DQ3 – Take the questionnaire on p. 73 of Psychology and Your Life. Are you more consistent with the
right or left brain orientation? How will your strengths help you with your future goals?
I actually fell almost completely in the middle. My score totaled up to six suggesting that even though I am
more left brain oriented, I am still consistent with right brain orientation as well. I think the
questionnaire fairly correct given that it's just a ''rough'' estimate of preferences. In most situations I like to
process a task by looking at each part individually to see how they all fit together, yet I'm also good at
seeing patterns. I use both to help me come up with my ideas. In the past, my strengths in the left brain
helped me in the Army by thinking through a plan to try to predict an outcome. I also used the right side to
communicate and recognize patterns in behavior and results. In the future I think both will help with my
goal to become a specialist in behavioral analysis. Having a strength in nonverbal areas is really a
prerequisite to be able to work in a behavioral field. In addition, strength in emotional expression is

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