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…
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…
1. FDR’s Brain Trusts were made by a group of university professors. Roosevelt created their trusts as he relied on them for economic advice.…
D. I only had one example of sensory exploration (2).Most sensory and brain development takes places between the ages of 0-5 years of age. I believe it is vital to provide each child with a rich environment to properly develop the sensory regions of the brain. Children can actively explore his or her world through…
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…
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)…
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,…
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.…
The McGill website states “If each hemisphere were unfolded, it would be the size of an extra-large pizza! For this reason, the brain must fold over on itself many times to fit into the skull (McGill “The Brain”). When a website used for academics, compares my brain to pizza I I’m Interested! Can a giant network of neurons make us who we are? The brain is one of the most complex organ of the human body. Many people over time have explored and tried to examine and explain the functions of the brain. Many people have an idea, but most still do not understand. We have read about some of the scientists and experiments they have done including Pierre Florenens, Eduard Hitzig, and VS Ramachandran.…
Purpose: To compare the amount of DNA extracted from two different species, despite using the same method.…
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…
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.…
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.…
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.…