The brain
The brain
Name:shasou Exercise 3: Neurophysiology of Nerve Impulses: Activity 5: The Action Potential: Measuring Its Absolute and Relative Refractory Periods Lab Report Pre-lab Quiz Results You scored 50% by answering 2 out of 4 questions correctly. 1. Which of the following occurs after the peak of the action potential? Your answer : b. Voltage-gated K+ channels open. Correct answer: d. All of these occur. 2. What is meant by Na+ channel inactivation? Your answer : a. The Na+ channel opens when the membrane reaches threshold. Correct answer: b. The Na+ channel no longer allows Na+ ions to pass through it. 3. What happens when voltage-gated K+ channels open? You correctly answered: d. All of these occur. 4. It is harder to generate a second action potential…
After reading “From Brain Gain: The Underground World of ‘Neuroenhancing’ Drugs” by Margaret Talbot and the T.E.D Talk “Grit: The Power of Passion and Perseverance” by Angela Lee Duckworth, I was intrigued to discover the correlation between neuroenhancing drugs such as adderall and the effects it may have on student grit. Talbot discusses the use of neuroenhancing drugs in colleges and raises question about the possible harmful side effects of an addiction to such “brain-boosting” drugs, and if it is providing students with an unfair academic advantage. With a similar focus on student education, Duckworth claims that in education field the main predictor of success if not how smart a student is, but how gritty, how passionate and how persevering,…
As the lead homicide investigator for this case I had recently learned that the crime lab has concluded that the finger print that was recovered belonged to the boyfriend, they were from a piece of notebook paper found under the body of the victim. Interviews are conducted in criminal cases for the purpose of gathering information from people who have, or may have, knowledge needed in the investigation. (Swanson, Chamelin, Territo & Taylor, 2012) However with the information that was recently learned from the evidence that was collected and analyzed by the crime lab, the interview with the boyfriend would now be conducted as an interrogation. Interrogation as opposed to interviewing is designed to match acquired information to a particular suspect in order to secure a confession; it is the process of testing that information and its application to a particular suspect. By means of interrogation we would be able to eliminate the innocent or identify the guilty. (Swanson, Chamelin, Territo & Taylor, 2012)…
In the last fifty years, there have been incremental advancements in the diagnosis and treatment of Hydrocephalus; however, long term health outcomes for individuals with hydrocephalus remain unpredictable. The most common treatment for hydrocephalus—and the most common procedure performed by pediatric neurosurgeons in the United States—is surgical installation of a device called a shunt (Kinsman SL, Johnston MV., 2011). If the patient survives, there is a possibility that they will live with physical, mental, or neurological disabilities for the remainder of their lives. A second treatment option is a surgical procedure called endoscopic third ventriculostomy (ETV). An endoscope is used to perforate a membrane in the floor of the third ventricle creating a pathway for cerebrospinal flow within the cavities in the brain. ETV is an important alternative as compared to shunting for obstructive hydrocephalus and may be useful in other cases as well. Shunt obstruction and malfunction occur in approximately one third of children in the first year after a shunt-related operation and studies have shown that ETVs can close up after time. We cannot overstate the importance of learning the signs and symptoms of treatment failure. The outlook relies solely on the cause. Hydrocephalus that is not due to infection has the best outlook, whereas those that have had tumors do not.…
The Zika virus is a pandemic microorganism and is found throughout the world. The group of virus responsible is called Flaviviruses, And currently, there are no vaccination or cure for the Zika virus.…
Purpose: To compare the amount of DNA extracted from two different species, despite using the same method.…
The figure from the article Updated Brain Map Identifies Nearly 100 New Regions, by Carl Zimmer, is not only unhelpful, but does not convey anything meaningful other than the great quantity of regions discovered. The purpose of the article is to report on a group of scientists’ discovery and their revised mapping of the brain with new regions. The image displays a multitude of regions that are seemingly random as neither the article nor a legend explains the significance of the borders drawn on the brain. While the purpose of color coding is to highlight notable portions of the brain, many of the regions’ colors are muddied which mitigates the importance of such regions. Although supposedly important regions of the brain are tinted in green…
Once a upon a time... No, this isn't some fairy tale story. This is the story of IQ, the smartest superhero of all times. He's better then wonder woman and superman, who in my opinion are overplayed and over rated. Nevertheless, is the story about how IQ beats his archenemy, Brain Matter. Conversely, they both are extremely intelligent which makes them both extremely dangerous. Now sit down and get cozy, it's story time.…
Based on the purpose of this lab is to demonstrate the motor learning and control known as bilateral transfer. This lab showed that through practice with reciprocal exchange, non-dominant hand execution can be enhanced by practice in every trial. Here are the two reasons that explain the bilateral transfer demonstrated in this lab demonstrated and improved by each trial. One is motor control, Motor control must do with the electrical boost that is utilized while honing an ability extra minutes. The non-dominant hand would utilize the same motor abilities as dominant hand. And the other is cognitive ability of how the skill is to be performed, Cognitive abilities are very important when practicing bilateral transfer. The non-dominant hand would use the same movements committed to memory on the Dominant hand.…
The Article is based on facts and applied research. Im not a scientist so I cant agree or disagree. However I do find it baffling that there is so much study of the brain that goes unseen. Its unbelieved to think how many hours, days, months researchers put in time to find or come up with different ways to uncover the brain. I think I…
Weaver et al. (2012) examined the long-term outcomes of deep brain stimulation (DBS) of the globus pallidus interna (GPi) and subthalamic nucleus (STN) for patients with Parkinson disease who do not receive adequate relief from their symptoms with traditional Parkinson’s medications (Appendix E). Relevant findings established in this article included: hypothesis, study design, sample size, methods of data collection/analysis, and the findings of the study.…
Poured the yellow solution into sep funnel. Added 10 ml CH2Cl2 to flask to rinse, poured solution into sep funnel. Added 15 ml 3 M HCl, gently mixed and vented (saw bubbles during mixing, heard the evolution of gas while venting). Allowed layers to separate. Upper layer determined to be aqueous by density: lower layer removed. Upper layer placed into separate flask labeled “A” for acid extract. Lower layer placed into sep. funnel and reextracted with 15 ml 3 M HCl. Combined aqueous layers in flask A…
In this experiment, we will be investigating what stimulates action potential on the nerve being tested on the oscillator. The factors that helped determine action potential are voltage, single stimulus, Hydrochloric acid, sodium chloride, the glass rod, and heat.…
In “Bugs in the Brain”, Robert Sapolsky makes the claim that more research is needed in order to gain a greater understanding of how the brain works and more importantly, to gain a greater understanding of how certain microorganisms change animals’ behaviors for their own benefits, such as reproduction and/or spreading to new hosts. He supports this claim mostly through the use of examples of these types of microorganisms. For example, he mentions mites that belong to the genus Anthennophorus, which ride on the backs of ants and stroke an ant’s mouthpart in order to make the ant disgorge food for the mite to feed on. Sapolsky also mentions the rabies virus, which causes its host to become aggressive in order to facilitate its spread…
Procedure : 1. The egg is cracked open and gently separate the yolk from the white into a small bowl. 2. Then add a spoonful of salt and a few drops of water to the yolk. 3. Use a glass rod and mix the mixture. 4. Take a spoonful of dish soap and mix into the mixture for 5 minutes. 5. The 3 test tubes will be then filled with small amount of yolk mixture using a dropper. 6. A pinch of meat tenderizer will be added into each test tube. 7. The test tube is then added with isopropyl alcohol carefully by using a dropper. 8. Observe and record the results, repeat step 1-6 with another 3 test tube by using pineapple juice as the enzyme.…