Parietal lobes

Parietal lobe.jpgCan you read and write? Do math? Put on your shoes? Read a map? Apply lipstick or know when someone is unhappy? Catch a ball?

If so, thank your Parietal lobes!!!

  • The parietal lobe is complex in that there is a dominant hemisphere and a non-dominant hemisphere. The parietal lobe controls abilities such as math calculation, writing, left-right orientation, and finger recognition. Lesions in part of the parietal lobe can cause deficits in writing, arithmetic calculation, left-right disorientation, and finger-naming (Gerstmann syndrome).
  • The nondominant parietal lobe controls the opposite side of the body enabling you to be aware of environmental space, and is important for abilities such as drawing, being aware of expression, body language and facial recognition. If you can recognize feelings on someone’s face, be grateful to your parietal lobe near the temporal lobe. .An acute injury to the nondominant parietal lobe may cause neglect of the contralateral side (usually the left), resulting in decreased awareness of that part of the body, its environment, and any associated injury to that side (anosognosia). For example, patients with large right parietal lesions may deny the existence of left-sided paralysis. Patients with smaller lesions may lose the ability to do learned motor tasks (eg, dressing, other well-learned activities)—a spatial-manual deficit called apraxia.

Parietal lobe functions include:

  • Cognition
  • Information Processing
  • Touch Sensation (Pain, Temperature, etc.)
  • Understanding Spatial Orientation
  • Movement Coordination
  • Speech
  • Visual Perception
  • Reading and Writing
  • Mathematical Computation

Training with Neurofeedback can assist the brain in making new pathways and support the brain in rewiring itself. Schedule your free demo today to learn more about how Neurofeedback can bring you to a higher state of awareness and function. For the first time in history, we can see our own brains at work and assist its functioning to a higher state of optimization.

I look forward to working with you!

Occipital Lobe

In general, the average human brain weighs about 1,400 grams (3 lb). The brain looks like a large pinkish-gray walnut. The brain can be divided down the middle lengthwise into two halves called the cerebral hemispheres. Each cerebral hemisphere is divided into four lobes by sulci and gyri. The sulci (or fissures) are the grooves and the gyri are the “bumps” that can be seen on the surface of the brain. The folding created by the sulci and gyri increases the amount of cerebral cortex that can fit in the skull. The total surface area of the cerebral cortex is about 324 square inches or about the size of a full page of newspaper. Each person has a unique pattern of gyri and sulci, much like a fingerprintoccipital lobe.

The third lobe of the brain for this series is the occiptal lobe which is located at the back of your head. It is where visual input in the brain is translated into information of what your eyes are seeing, and also to being able to understand what we read.

Similar to how the temporal lobe makes sense of auditory information, the occipital lobe makes sense of visual information so that we are able to understand it. If our occipital lobe is impaired, or injured we would not be able to correctly process visual signals, thus visual confusion would result. We might, for example, see an image chopped up or parts missing. Also, with back of the head injuries, our ability to get into a restorative sleep called REM sleep is often impaired.

Occipital lobe epilepsy accounts for about 5-10 of all epilepsy. An occipital lobe epilepsy may be triggered by a strobe light show since the origin is in the visual processing component of the brain.

 

Your Frontal Lobe

Where is it?  It’s the front and top of your head


FRONTAL LOBE BTNE

What does it do?  This part of the brain handles thinking, decision- making, and planning.
You use your frontal lobe nearly everyday. You use it to make decisions, such as what to eat or drink for breakfast in the morning.   It’s where you make a plan for your day, and concentrate on your “To Do” list.  It’s where your personality is formed and why when a person has an accident or injury to the frontal lobe people notice a change to a person’s personality.

Here is a little neuroscience history:

In the mid 1800s, Phineas Gage, a railroad worker, somehow miraculously survived an accident where a large iron pole was driven into his head, specifically into the frontal lobe. After the incident, Gage’s personality was said to have changed dramatically.  His friends and family said that the once kind and hard-working Gage had changed into a lazy and rude man until he died years later. However, this incident allowed doctors and psychologists to analyze the brain and see the importance and functions of the frontal lobe.

 

 

Brain Waves Basic

Four simple periodic rhythms recorded in the EEG are alpha, beta, delta, and theta. These rhythms are identified by frequency (Hz or cycles/sec) and amplitude. The amplitudes recorded by scalp electrodes are in the range of microvolts (μV or 1/1,000,000 of a volt).

rhythm Freq (Hz) Amp(μV)
alpha 8-13 20-200
beta 13-30 5-10
delta 1-5 20-200
theta 4-8 10

Alpha: The four basic rhythms have been associated with various states. In general, the alpha rhythm is the prominent EEG wave pattern of an adult who is awake but relaxed with eyes closed. Each region of the brain had a characteristic alpha rhythm but alpha waves of the greatest amplitude are recorded from the occipital and parietal regions of the cerebral cortex. In general, amplitudes of alpha waves diminish when subjects open their eyes and are attentive to external stimuli although some subjects trained in relaxation techniques can maintain high alpha amplitudes even with their eyes open.

Beta: Beta rhythms occur in individuals who are alert and attentive to external stimuli or exert specific mental effort, or paradoxically, beta rhythms also occur during deep sleep, REM (Rapid Eye Movement) sleep when the eyes switch back and forth. This does not mean that there is less electrical activity, rather that the “positive” and “negative” activities are starting to counterbalance so that the sum of the electrical activity is less. Thus, instead of getting the wave-like synchronized pattern of alpha waves, desynchronization or alpha block occurs. So, the beta wave represents arousal of the cortex to a higher state of alertness or tension. It may also be associated with “remembering” or retrieving memories.

Delta and Theta: Delta and theta rhythms are low-frequency EEG patterns that increase during sleep in the normal adult.   As people move from lighter to deeper stages of sleep (prior to REM sleep), the occurrence of alpha waves diminish and is gradually replaced by the lower frequency theta and then delta frequency rhythms.

Although delta and theta rhythms are generally prominent during sleep, there are cases when delta and theta rhythms are recorded from individuals who are awake. For example, theta waves will occur for brief intervals during emotional responses to frustrating events or situations.   Delta waves may increase during difficult mental activities requiring concentration. In general, the occurrence and amplitudes of delta and theta rhythms are highly variable within and between individuals.

Neurofeedback andADD/ADHD

Can neurofeedback treat the symptoms of ADD and ADHD without medication?

shutterstock_106369628 [Converted]People with ADD/ADHD can display a variety of symptoms and may appear to be distracted, impulsive, and inattentive. However, ADD/ADHD is not a psychological problem – it’s a brain problem and often treated with medication when brain training can be a better, more healthy alternative.

Medications do not teach a person to cope long-term, and are accompanied by side effects such as:

  • Loss of appetite
  • Sleep difficulties
  • Potential cardiac risks
  • Personality changes

Moreover, children with more significant ADD or ADHD may not gain much benefit from medications or behavioral interventions. People can also develop a tolerance to medications over time, resulting in increased dosages, additional medications, and potentially more side effects.

The long-term effects of ADD/ADHD medications are largely unknown. Ritalin, very often prescribed for the treatment of ADD and ADHD, has been used to treat ADD/ADHD since the 1960’s but still has not been studied for long-term effects. In fact, the Canadian Medical Association asserts:

shutterstock_104286563[W]hile research has conclusively proven Ritalin’s short-term effectiveness, little is known about the long-term efficacy and safety of a drug that some children take for many years. In fact, the average duration of randomized trials of the drug is 3.3 weeks…. There aren’t long-term studies, and that’s of some concern because we don’t know whether the initial positive effects… might diminish over time. Moreover, we don’t know what happens to the side-effects… whether those got worse or maybe they diminish too – we don’t really know.

Unlike medication, neurofeedback actually retrains the brain, resulting in significant improvement in ADHD/ADD symptoms. With neurofeedback, people learn to make long-term improvements in self-control and attention because their brain learns to make healthier patterns.

Training the brain with neurofeedback helps to address the root of the problem without medications by helping create a healthier brain.

Why is neurofeedback so effective for ADD/ADHD?

If a stimulant literally speeds someone up, why is it prescribed for someone with hyperactivity problems? Why do stimulants seem to help someone with ADD/ADHD slow down and focus?

In a person with ADD or ADHD, the areas of the brain that control attention and focus may have too much slow activity, which can also lead to feeling depressed, worried, and unmotivated. Unconsciously, people with ADD/ADHD increase body movements to stimulate and “wake” their brains. Therefore, stimulants are prescribed to increase brain activity without increasing body movement.

The problem with this strategy is that people with ADHD may already be experiencing too much rapid activity in some regions of the brain, which can lead to other problems like acting aggressively, impulsively, or feeling anxious. A person’s brain can race so fast that it is nearly impossible for them to sit still or listen. In fact, because people with ADD are often quite intelligent, they understand concepts quickly. Their fast mental pace may cause them to move ahead before all the instructions are given, causing them to miss crucial details.

Research shows that neurofeedback is a successful alternative for treatment of ADD/ADHD.

ADD and ADHD are brain problems. Neurofeedback allows people to work directly on the problem by training the brain to become calmer, more focused, and less impulsive. By reducing the too-fast and too-slow brain patterns that occur in the brain of someone with ADD or ADHD, neurofeedback helps the person learn how to take control.

According to health professionals who use neurofeedback in their practices, over 85% of clients with ADD or ADHD learn to increase focus, reduce impulsivity, and manage their behavior when they train with neurofeedback on a consistent basis.

Another reason that neurofeedback is so effective for ADHD and ADD is that it appeals to children – it seems just like a computer game! Instead of controlling the game with a mouse, the child “plays” the game with his or her brain. Children seem to enjoy brain training, making it easy to continue with treatment and achieve significant improvements.