The relationship between intelligence and brain size, both among people and between various species, has never been precisely well defined. People often believe that their outstanding psychological capacities must mean that they are superior to all animals as far as brain size is concerned. However, it is not true since whales and elephants have much bigger brains than humans and humans have the same brain-to-body mass proportion as mice do.

Here are a number of ways by which the brain size can be determined:

Encephalization remainder: Since it would be against human instinct to admit loss and defeat, researchers have created a measure to determine the brain size called the encephalization remainder. It is the proportion of actual brain mass with respect to the anticipated cerebrum mass for the animal s size (based on the suspicion that bigger animals require somewhat less brain matter with respect to their size, compared to little animals). By this metric, human beings prove to be the best, with an EQ of 7.5 outperforming the dolphin's 5.3 and the mouse's 0.5.
IQ testing: Without a solitary and evident method for measuring intelligence, some improved tests like IQ (Intelligence Quotient) are by and large acknowledged as a moderately decent working device. IQ estimations are not without issues, and there is a great deal of criticism about their significance. IQ testing uses government sanctioned tests, for example, the WAIS III (Wechsler Adult Intelligence Scale). The normal IQ is somewhere around 90 and 110. The scores beneath the normal may demonstrate changing degrees of pathology, for example, marginal intellectual function, or mental hindrance of different severity. Over the normal range is regularly connected with knowledge, splendour, talent, or genius. However, as with computers of a few eras, size and intellect do not precisely relate. Present day portable computers weighing around one or two kilogrammes can store more data and perform a greater number of assignments than supercomputers from the 1980s that used to possess expansive structures. This is a contrast amongst quantity and quality. Numerous scientists now hold the view that it is not the whole brain, which is bigger in a human with a higher IQ, yet rather certain zones that are denser and might be bigger. A fascinating late revelation is that these ranges can be expanded in size and enhanced in usefulness during the course of our life.
NeuroplasticityIt refers to the dynamic procedure of repair and maintenance that our brains are continually experiencing. We are conceived with around hundred billion neurones, yet lose around two hundred thousand a day to a procedure called pruning. As we develop and grow, pathways in the brain that are not required are detached, and the neurones pass on. However, in a compensatory procedure, new neurones are delivered and more detailed associations are built up between neurones that are more dynamic. This is the procedure of de-cluttering, in which our brains develop to work at most extreme effectiveness. If you wish to discuss about any specific problem, you can consult a Neurologist.

Brain Size - How It Is Related With Intelligence?

Acoustic neuroma is a benign tumor that occurs in the primary nerve between the brain and the ear. The tumor progresses very slowly and can influence your balance and hearing. In certain cases, if the tumor becomes very large, then it may also impair vital functions of the body.
Symptoms-
The symptoms of acoustic neuroma tend to develop when the tumor starts to press on the nerve and its adjoining branches. The symptoms of this disorder are  
You may experience hearing loss on one side which might worsen gradually.
You may have problems in balancing yourself.
A continuous ringing sound in the ears.
Persistent dizziness.
If the tumor is large and presses on the nearby nerves, then you may experience numbness of the facial muscles.
In some cases, it may impair the vital functions of the body.
This disorder is caused by a malfunctioning gene. There is no documented reason as to why the gene malfunctions.
The treatment options for this disorder are  
Constant Monitoring: These tumors tend to grow very slowly but might spurt in some cases. In order to prevent damage to your body, they need to be monitored on a regular basis. Imaging tests are recommended on a periodic basis to determine the growth of the tumor.
Radiosurgery: Stereotactic radiosurgery is done to treat acoustic neuroma that is small in size. In this surgery, radiation is directed at the tumor without creating any incision. It is done to limit the growth of the tumor and preserve your hearing.
Surgery: The tumor can be removed by using surgical procedures. It involves administering general anesthesia, followed by removing the tumor through an incision on the skull or the inner ear. Surgery is used to remove the tumor and preserve your hearing abilities. 

Acoustic Neuroma - Everything You Need to Know

Acoustic neuroma is the development of noncancerous and slow-growing tumors on the main, vestibular nerve that travels from the inner ear to the brain, connecting the two organs. They are also known as vestibular schwannoma, as it arises from Schwann cells covering the vestibular nerve. It rarely grows rapidly or attains a large enough size that can press against the brain and interfere with the vital functions of the brain. Since the tumor is benign, the patient can be assured that it won t spread to the other parts of the body; however, they can grow large enough to disrupt the normal function of the body.

The pressure from the acoustic neuroma on the main nerve can cause loss of hearing, a constant ringing in the ear and unsteadiness. As per a report published by the Acoustic Neuroma Association, 1 out of every 50,000 people suffers from this condition.

Risk factors for acoustic neuroma
Acoustic neuroma does not have quite as many risk factors. The only established risk factor for acoustic neuroma is having a parent who suffers from the rare genetic disorder neurofibromatosis 2 (NF2). However, having said that, neurofibromatosis 2 (NF2) accounts for only 5 percent of the reported cases. In most of the cases, it has been found that the tumors appear spontaneously without any indication of a family member having this disease or any medical history of the same.

The development of noncancerous tumors on the ear nerves as well as other nerves in the body is scientifically supported as a characteristic indication of neurofibromatosis 2 (NF2). Neurofibromatosis 2 (NF2) is also termed as an autosomal dominant disorder, which indicates that the mutated gene can pass from just one parent. Each of the children has a fifty-fifty chance of inheriting the disease.

However, scientists and doctors have failed to identify why specific people get these tumors. They have reached a generic conclusion about the risk factors, which may include:

Loud noises near the ear.
A parathyroid neuroma, which is a similar benign tumor of the thyroid.
A chance of exposure to low levels of radiation in the childhood.
How to diagnose the risk factors for acoustic neuroma?
If you are experiencing loss of hearing or other neurological symptoms, try to keep track of them. Later on, mention them to your doctor for a proper diagnosis. A detailed history of the symptoms will help your doctor. Your doctor will perform a hearing test to check whether you have an acoustic neuroma. Then the doctor may perform a brainstem auditory evoked response tests along with an electronystagmography to detect any changes in eye movement, caused due to the inner ear. MRI and CT scans are also quite common diagnoses methods for acoustic neuroma.

Acoustic Neuroma - What Are The Risk Factors?

Leading a life with peripheral neuropathy is quite similar to riding a roller coaster. Managing the pain can be frustrating at one time and overwhelming on the other as patients can experience alternating symptoms with debilitating pain. So you should learn about the various treatment options as they can help you go a long way in managing the pain.

The peripheral nerves are considered the longest in the body which extend from the hands to feet. When these nerves are damaged, you may feel some sort of pain, tingling in the hands and feet and even numbness, and these symptoms can even get worse and you may experience stabbing pain with increasing weakness. 

There are many things that you should know about peripheral neuropathy as they would help you to manage the condition much more effectively.

Diabetes is the leading cause of neuropathy: More than 70% of diabetics develop symptoms of peripheral neuropathy. So you should keep your blood sugar within optimum levels as a means of reversing diabetic neuropathy.
A melange of causes behind neuropathy: Though diabetes is the number 1 cause of peripheral neuropathy, other causes include deficiency of vitamin B12, alcoholism, traumatic injury, chemotherapy and exposure to toxic substances. Physicians may find it difficult to pin-point the cause and when this happens. This is often termed as  idiopathic neuropathy .
Medications causing neuropathy: If you are suffering from diabetes and being treated with the drug named metformin, you may develop peripheral neuropathy.
Preventing neuropathy is the most recommended way: While it is the fact that some nerves may potentially get damaged from certain surgeries or injury, peripheral neuropathy can be potentially prevented or sometimes stopped from spreading. As diabetes is a major cause of diabetes, being watchful about your diet and exercising regularly can help you go a long way to prevent diabetes as well as neuropathy.
Pain is not simply confined to a tingling sensation: Though pain and a tingling sensation is the commonest and easiest way of recognising the symptoms of peripheral neuropathy, each of your sensory, motor and autonomic nerves can show different set of symptoms that you should be watchful of.
A diet may make the symptoms even worse: You can either help or hurt your nerves with your choice of foods. For improving symptoms, you should avoid food with excessive sugar, refined grains and artificial sweeteners as they may strain your nerves and irritate them further.
Whether you are recently diagnosed with peripheral neuropathy or living with it for many years, understanding a few conditions would help you make informed decisions about your well-being.

Peripheral Neuropathy - 6 Things You Should Know!

Some diseases like Bell s Palsy have a sudden onset. One moment everything is fine and the next, half your face feels paralysed. Bell s Palsy is a viral infection that causes temporary paralysis of one side of the face. The exact cause is unknown but this virus is said to be related to the herpes virus. The sudden onset of this condition can make a person believe that they have suffered a stroke and this condition can last for several months. Many people do not completely recover from this condition. A numb sensation, lack of control over the lips and eyelids, drooping of one side of the face and an inability to smile or blink are some of the symptoms of this condition.

Homeopathy has been used to treat a number of Bell s Palsy cases successfully. However, the results vary from person to person and the extent of nerve damage done. This form of treatment does not address only the visible symptoms but addresses the physical, mental and emotional health of a person as a whole. Since homeopathy has negligible side effects, it can be prescribed to children and adults alike. Some common homeopathic remedies for Bell s Palsy are:

Aconite and Causticum: Aconite is prescribed in the initial stages of this condition especially is paralysis seems to have set in after exposure to a cold draft. Patients who can benefit from aconite often also complain of a tingling sensation on the affected side of the face. On the other hand, causticum is prescribed to treat chronic cases of facial paralysis.
Hypericum: This is the most preferred homoeopathic remedy in cases of paralysis caused due to injury to a nerve. In addition to the symptoms of Bell s Palsy, the patient may also complain of tingling or numbing sensations and burning sensations on the affected side of the face.
Ignatia: Bell s Palsy can also be triggered by grief. In such cases, Ignatia has been proven to be quite effective. It also resolves excessive saliva production and frequent biting of cheeks of the tongue while talking and swallowing.
Cadmium Sulph: Bell s Palsy that develops as a result of a sudden haemorrhagic condition can be treated with Cadmium Sulph. In such cases, the patient may have a distorted face and may face difficulties swallowing food and speaking properly. He or she may also be unable to close the eye on the affected side of the face.
Bacillinum and Causticum: The medicines are prescribed in cases of Bell s Palsy triggered by the suppression of facial eruptions.


5 Natural Homeopathic Medicines For Bell's Palsy

Obesity is the new-age lifestyle disease with multiple ramifications. While its effects on the physical aspects are very evident, the damage it does to the brain are more severe, though not obvious. Read on to know some harmful effects of obesity on the emotional well-being.

Leads to binge eating: There is a certain pleasure in eating sugary and fatty food, and this is lost with depression. Therefore, to get that emotional satisfaction, people tend to eat more chocolates, cookies, milkshakes, and other weight-accumulating food items, which further add to obesity. Greater the weight gained by a person, lesser the response or happiness from such food products.
Increases impulsivity: The area of the brain known as orbitofrontal cortex, which is in charge of controlling impulsivity, shrinks in obese people. This results in people eating more impulsively.
Affects immunity: Obesity is a major cause of inflammation, leading to damage in certain parts of the brain. This impairs the immune system, making the affected person more prone to infections and tissue damage. This leads to increased chances of diabetes, heart disease, stroke, sleeping disorders, eating disorders, etc. The chemical known as C-reactive protein increases as seen on MRIs in obese people, and which is usually seen in patients with chronically increased inflammation.
Effects on memory: As the BMI increases, there is a decrease in scores of memory tests. This effect is more obvious in women after menopause. With increased fat accumulation, more hormones are released, which affects the memory. Increased inflammation also affects cognition and memory.
Increased risk of dementia: With more belly fat accumulating, there is extra stress on the body to burn the visceral fat. This reduces brain size and causes certain hormones to release, which further affects the body s ability to remember things. It has been proven that people with smaller brain size are at greater risk for developing dementia.
Weight loss stress adding to more stress: When obesity sets in and the BMI goes up, there is an added pressure to lose weight, which further ups the stress levels. During these dieting days, the brain is constantly alert and finds ways to eat more. This also leads to excess eating. Moreover, there are indications that there could be genetic changes during this phase, which may leave a permanent mark in the person s composition.
Depression: When a person is not happy with their reflection in the mirror, the chances of feeling good and happy are very less. In this age, where aesthetics plays a major morale booster, an obese image staring back does not help at all.
So, if you have a risk of obesity, watch out. It is not just how you look, but how you feel is also altered.

Obesity - How It Affects The Human Brain?

Don't wait any longer, manage your Facial Nerve Disorders online with a Lybrate doctor today

Consult for Facial Nerve Disorders - Online and Easy!

FilterClear All

COMMON SPECIALITIES

COMMON ISSUES