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?

Sleep-Wake Disorder is a very uncommon syndrome which causes irregular sleeping patterns without any real schedule.

Causes
Persons with brain malfunctioning and those who do not have a regular routine during the day experience such disorders. People with changing work shifts often experience such disorder. Also, travellers who often move from one country to another with different time zones may also have these symptoms.
There's no cure for this disorder, but treatments, including hormones, medicine, and light therapy, can help get you closer to a normal sleeping pattern.

Symptoms

Symptoms may include any of the following:

Sleeping or napping more than usual during the day
Trouble falling asleep and staying asleep at night
Waking up often during the night
Exams and Tests
A person must have at least three abnormal sleep-wake episodes during a 24-hour period to be diagnosed with this problem. The time between each such episode varies from 1 to 4 hours. The doctor may advise you to go ahead with a device called actigraph in case the diagnosis is unclear. The device looks like a wristwatch, and it can tell when a person is sleeping or awake.

Treatment
Though there is no simple cure for irregular sleep-wake syndrome, however, several therapies and lifestyle changes may help a person return to a normal sleep-wake cycle. These include:

A regular daytime schedule of activities and mealtimes need to be fixed.
You should not stay in bed during the day for long.
Use bright light therapy in the morning like those from computer screens and television. The period of exposure should also be increased. Exposure to blue light should be minimized at night.
You should take melatonin at bedtime. This is a hormone that controls the sleep-wake cycle. By taking doses at the right times, you might be able to shift your body clock earlier or later.
Make sure to make the room dark, quiet, and as comfortable as possible at night.
Also one should try to minimize the amount of noise in the sleep environment.
Add more structure to the patient s day by scheduling social interaction, exercise, and other activities.
Your doctor may prescribe drug to control the timing of the sleep-wake cycle.
Finally, you should take proper care of yourself. Make positive changes in your lifestyle. You can even ask your boss to make your work schedule a bit flexible.

The ultimate goal of these lifestyle changes is to help the person sleep longer at night and make him feel active and awake during the day. Most people have sleep disturbances on occasion. But you need to see your doctor if such sleep disorders occur regularly.


Sleep Wake Disorder - Irregular Sleeping Patterns

Brain cancer is a disease of the brain in which cancer cells (malignant cells) arise in the brain tissue. Cancer cells grow to form a mass of cancer tissue (tumor) that interferes with brain functions such as muscle control, sensation, memory, and other normal body functions. Tumors composed of cancer cells are called malignant tumors, and those composed of mainly non-cancerous cells are called benign tumors. Cancer cells that develop from brain tissue are called primary brain tumors while tumors that spread from other body sites to the brain are termed metastatic or secondary brain tumors.

Prologue:

Brain cancer is actually the abnormal growth and uncontrolled growth of the cancer cells in the brain,that forms a tumor in the brain.Tumours can be either benign or malignant.

Benign brain tumours are abnormal collections of cells that reproduce slowly and usually remain separate from the surrounding normal brain.

Malignant tumours reproduce and grow quickly. Their borders are hard to distinguish from the normal brain around them.

Symptoms:

There are few early symptoms of brain cancer, but as the tumour grows within the confines of the skull, it causes increased intracranial pressure and exerts pressure on the brain, causing signs to develop.

Brain cancer symptoms and signs are varied and depend on the area of the brain involved, but can include:

Headaches.

Seizures.

Nausea and vomiting, which, CANSA reports, may be worse in the morning or after a sudden position change.

Difficulty walking or clumsiness.

Vision changes.

Changes in alertness.

Behavioural impairment.

Causes:

Brain cancer occurs when there is an uncontrolled growth of cancer cells in the brain that form a malignant brain tumor. The underlying cause of primary brain cancer, cancer that begins in the brain, is not known. Secondary brain cancer is caused by a cancer of another organ in the body, such as the breast, prostate, kidney, skin, or bone, that has spread to the brain.

What are the risk factors for brain cancer?

Certain inherited conditions, including neurofibromatosis, Von Hippel-Lindau syndrome, Li-Fraumeni syndrome, and Turcot syndrome

Personal history of cancer or family history of brain cancer

Impaired immune system

Radiation therapy of the head

Treatments Options:

Treatment

Surgery is the main form of treatment for brain tumors that lie within the membranes covering the brain or in parts of the brain that can be removed without damaging critical neurological functions. The goal is to remove the entire tumor, whenever possible, as a tumor may recur if any tumor cells are left behind. Radiation therapy and chemotherapy are generally used as secondary treatment for tumors that cannot be cured through surgery alone.

Stereotactic radiosurgery

Stereotactic radiosurgery is a treatment option that delivers a high concentration of radiation directly to the tumor in order to stop its growth, while delivering only a minimal dose of radiation to the surrounding tissue. Unlike conventional surgery, stereotactic radiosurgery does not require making an incision to remove the tumor. It can be especially effective in patients with many small metastatic brain tumors.

Brain Cancer

Autism Spectrum Disorder or ASD is a condition associated with brain development. ASD affects the way an individual perceives others and socializes with a group of people. This disorder shows up in early childhood; it includes repetitive and limited behaviour patterns and thus, makes it difficult for the affected child to interact or communicate with others.

The word  spectrum  in ASD refers to a range of signs related to the condition. Some children develop the symptoms of the disorder right from infancy, while others exhibit the same within 12-36 months of birth.

Signs to Watch Out for-

Early signs of Autism Spectrum Disorder in toddlers include-

  Reduced eye contact
  Lack of response (to their name)
  Difficulty learning things
  Trouble communicating
  Speaking in an abnormal tone
  Repeating words, not knowing where to place them in a sentence
  Inability to express feelings/emotions
  Inappropriate approach to social interaction   being aggressive, destructive, or passive
  Difficulty recognizing non-verbal cues
  Lack of coordination
  Oversensitive to touch, sound, or light
  Repetitive movements - spinning, rocking, hand flapping

Every child with ASD has a unique behaviour pattern.

If you notice the above traits in your child and are concerned about his/her development, then you should visit a doctor right away. A specialist can recommend an appropriate line of treatment to manage the symptoms and help your child thrive despite being autistic.

Autism and Nutrition   Is There Really a Link?

Caring for an autistic child can be challenging on many levels, and healthful eating is no exception. A child living with Autism Spectrum Disorder may not be getting enough nutrients, primarily because they are not patient enough to sit through their meals.

If your child has ASD, you should definitely reach out to a paediatrician. He/she will most likely prescribe a  special diet  to provide your child with the essential nutrients.

  Switch to a casein-free, gluten-free diet. Exclude foods such as   fishes, eggs, seafood, soy products, nuts etc. Children with ASD have an abnormally leaky gut, and these food items often cause inflammation in the gut. This further deteriorates the symptoms.
  The doctor may recommend a low-fat, high-protein ketogenic diet   cottage cheese, avocados, poultry meat, coconut oil etc.
  Serve your child a good portion of vitamin-rich foods   cereals, fruit juice, oatmeal etc. However, make sure that you are aware of any allergic reaction your child may have before incorporating these in their diet.

Health experts state that for children living with this condition, a balanced, nutritious diet can make all the difference in the world   it can improve their learning ability, help them to express themselves more and process information better.

Early Signs Of ASD In Toddlers!

Alzheimer s disease is one of the most severe forms of dementia that is, memory loss which also comes with other disorders such as reduced muscle movement. A patient with the Alzheimer s disease practically forgets even the most basic day-to-day activities and hence, the disease interrupts the lives of people suffering from it and the ones who are related to them. A commonly observed pattern in the patients suffering from the Alzheimer s disease is that most of them are aged 60 years and beyond. In simple words, it is the death of the brain cells, that is, the nerve cells which causes the memory loss at first and then the cognitive decline of other bodily functions.

Symptoms:

A patient of the Alzheimer s disease might show one or more of the following mentioned symptoms. Read the symptoms carefully and help identify the symptoms if you see them in anyone in your surroundings. Most people mistake this symptom to be something else which causes a delay in the diagnosis. But if the disorder is diagnosed at an early stage it might help people survive, or at least have a little longer until their memory stays intact. Therefore, it is of utmost importance to know about the symptoms that are given below:

The inability to remembering the information 
Repeating questions or actions
Unable to find the way on a rather regularly visited road
The decrease in decision-making ability
Poor judgment
Unable to solve complex puzzles or do tough activities
Unable to recognize familiar people such as colleagues and relatives
Unable to dress up properly
Inability in speaking mother tongue or word formation
Uncontrollable mood swings
Rude and un-empathetic social behavior such as being outspoken
They will be unable to maintain their own finances unlike before.
Stages of Alzheimer s disease
It is not unknown a fact when someone says that detecting a disease at an early stage is beneficial than at a later stage. The reason being that if a disease is detected earlier, there are more chances of treating it successfully, or in case of the Alzheimer s disease there are more chances of a medication to work on slowing down the adverse effects of the disease since there is no permanent cure available for it. Therefore, it is of utmost importance that one is aware of the early onset of the disease and also, the symptoms to make a quick diagnosis. The disease affects people between the age of 30 and 60, generally, the symptoms begin at the very early age of 30 but they do not become persistent before reaching a later-on stage. The three stages are:

Preclinical when the individual hasn t recorded any symptoms
The beginning with mild symptoms
Complete dementia

Alzheimer's Disease - Know Its Symptoms!

Ageing is inevitable, and as much as we want to escape, there is no way out. All organs, whether obvious or not, undergo gradual degeneration and deterioration. The brain is no exception, and memory being one of its main function also begins to decline with age. There are various factors which determine how quickly this ageing sets in and how rapidly it progresses. These are dictated by a person s lifestyle, activity levels, and overall body changes. Dementia also has a strong family history, and if you know someone who has a family history, there are some early signs that you could watch for. This will help in both empathizing with the person, as well as to help in arresting progression. Read on to know the signs that need to be watched out for.

Mood changes: Sudden changes in mood, especially going into short periods of depression without an obvious reason, is one of the first symptoms of dementia. If it is happening repeatedly, this can help identify dementia.
Personality changes: If a shy person suddenly becomes outgoing or vice versa, this could be an early indicator of dementia. They either develop or shed inhibitions, which is a new change for them.
Memory loss: Sudden short-term memory loss for a person who had a very strong memory is a definite indicator of dementia. They might clearly remember the distant events but forget small things like where to find their medicines, where things are in the kitchen or bathroom, etc. Because of this, you might see them repeating what they just did. This could be like washing a glass again, saying or asking the same thing again, etc.
The difficulty with regular tasks: Short-term memory loss causes difficulty with regular tasks like laying out the dinner table, finding regular medicines, paying utility bills, etc. There is also difficulty in learning new tasks, which further complicates things.
Feeling lost: Due to sudden memory loss and difficulty with regular tasks, they suddenly feel lost, which in turns adds to their depression.
Apathy: This also leads to a general lack of interest in things and people around them. They could have had hobbies, which no longer interest them.
Disoriented: They find it difficult to be aligned to time and space. Directions which they clearly know could seem difficult.
Not able to connect the dots: While the elderly people are generally good at telling stories and anecdotes, with dementia setting in, this becomes difficult.
These are some symptoms which can help identify if a near one is slowly developing dementia. Identifying in the early stages can help in arresting progress and extending support.

Dementia - How To Know If Someone Is Suffering From It?

Don't wait any longer, manage your Autonomic Neurologist online with a Lybrate doctor today

Consult for Autonomic Neurologist - Online and Easy!

FilterClear All

COMMON SPECIALITIES

COMMON ISSUES