Insular cortex

The arousal theory is based off behavior being partially a function of the average state of arousal, excitement, or de-arousal, inhibition, of the cortex. Meaning, depending on if an individual is introverted or extroverted they will require different amounts of stimulation to cause cortical arousal. Introverts are considered stimulus shy, they require less stimulus than extroverts, causing them…

decade before anything can be detected in the brain by certain scans or tests. This sort of disease is rapid and once a patient is diagnosed, it only gets worse from that point on. The cerebral cortex is responsible for thinking, planning, and remembering information. For Alzheimer’s patients, the cortex shrivels up causing the loss or gain of any information. The shrinkage of the Hippocampus is directly responsible for the inability to store new memories. Researchers have conducted various…

There are many MESSAGES that an individual can analyze from “A Stroke of Insight”. For example, Jill speaks about how her spirit could “soar free” during her stroke and that she found nirvana. The fact that Jill nearly died and she could find nirvana or peace within herself, means that anyone is fully capable of finding peace within themselves. In addition, if Jill can find something positive in something as frightening as a stroke, we can find the positive in any situation. The RECEIVER of the…

It is a worldwide belief that multitasking is a harmless and a quick way to get various things done. Most businesses even see multitasking as a great skill for their employees to have. Recent studies however, focused on the effects of multitasking have shown that multitasking is neither harmless or as helpful as people think. This is even more true when it comes to multitasking while trying to learn something. Many individuals may claim they can equally multitask and learn, but research has…

As I look at teenagers from my adult perspective I have often find myself wondering, “What are they thinking?”. Teenagers seem to have a reputation for being impulsive and not the best decision makers and it now looks like there may be some science that can explain such behaviors. Both the article written by Sarah Spinks and the text book Invitation to the Lifespan offer insight into what may be really going on inside a teenagers’ head. It turns out it may just be all in the brain.…

Do you remember the last time someone told you to brush your teeth? Hopefully, it has been a long time since you even thought twice about it because that once tedious chore has become a habit. Habits are apparent in your daily life in a multitude of ways; from the positive habits, like brushing your teeth and exercising, to the negative habits such as biting your nails. That being said, habits are essential to living a productive, healthy life, yet most people cannot recall when a simple action…

All my life, I’ve always wondered, why? Why do I stammer? Is it something wrong with me? I know that I was born that way because unlike many people, stammering didn’t only occur when I was stressed or in an unconformable situation. I stuttered every time I tried to speak. No matter how hard I tried to control my speech flow, I couldn’t help it. It was natural. My relatives tried to help me, to cure me fof my speech disorder but they failed. They didn’t have patience with me. They believed that…

Glucocorticoids are steroid hormones which are produced predominantly in response to stress in the adrenal gland (Davis & Sandman 2010; Korgun et al. 2012). The physiological effects of glucocorticoids occur when the hormone are bind to, and mediated by the glucocorticoid receptor (Erhuma 2012). It plays a wide range of vital physiological roles that are necessary for healthy implantation and pregnancy processes (Korgun et al. 2012). As glucocorticoids are critical in the regulation of the…

Introduction A vertebrate is characterized by the vertebral column as it is part of their axial skeleton. Its main function is to act as a communication pathway between the brain and the body of the vertebrate. Usually, vertebrates have a fixed number of vertebral column, but there are variations in the number of vertebral columns within the cetacean species. Dolphins are vertebrates and are one of the fastest swimming species due to their morphological stability. The morphology can determine…

Table 1. Structure Origin Insertion Action Deltoideus, pars clavicularis Lateral third of clavicle Deltoid tuberosity of the lateral side of the body of the humerus Flexion and medial (internal) rotation of humerus Deltoideus, pars acromialis Acromion Deltoid tuberosity of the lateral side of the body of the humerus Abduction of humerus Deltoideus, pars spinalis Scapula spine Deltoid tuberosity of the lateral side of the body of the humerus Extension and lateral rotation of humerus Supraspinatus…