Different people can experience the same mental disorders very differently. You should talk to your doctor if you notice a change in your behavior, thought patterns, or moods.
The Geography of Thought Each cerebral hemisphere can be divided into sections, or lobes, each of which specializes in different functions.
When you plan a schedule, imagine the future, or use reasoned arguments, these two lobes do much of the work. One of the ways the frontal lobes seem to do these things is by acting as short-term storage sites, allowing one idea to be kept in mind while other ideas are considered.
These areas receive information about temperature, taste, touch, Brain disorders movement from the rest of the body. Reading and arithmetic are Brain disorders functions in the repertoire of each parietal lobe.
As you look at the words and pictures on this page, two areas at the back of the brain are at work. Damage to the occipital lobes can cause blindness.
Whether you appreciate symphonies or rock music, your brain responds through the activity of these lobes. At the top of each temporal lobe is an area responsible for receiving information from the ears.
The underside of each temporal lobe plays a crucial role in forming and retrieving memories, including those associated with music. Other parts of this lobe seem to integrate memories and sensations of taste, sound, sight, and touch.
The Cerebral Cortex Coating the surface of the cerebrum and the cerebellum is a vital layer of tissue the thickness of a stack of two or three dimes.
It is called the cortex, from the Latin word for bark. Most of the actual information processing in the brain takes place in the cerebral cortex. When people talk about "gray matter" in the brain they are talking about this thin rind. The cortex is gray because nerves in this area lack the insulation that makes most other parts of the brain appear to be white.
The folds in the brain add to its surface area and therefore increase the amount of gray matter and the quantity of information that can be processed. The Inner Brain Deep within the brain, hidden from view, lie structures that are the gatekeepers between the spinal cord and the cerebral hemispheres.
These structures not only determine our emotional state, they also modify our perceptions and responses depending on that state, and allow us to initiate movements that you make without thinking about them. Like the lobes in the cerebral hemispheres, the structures described below come in pairs: It wakes you up in the morning, and gets the adrenaline flowing during a test or job interview.
The hypothalamus is also an important emotional center, controlling the molecules that make you feel exhilarated, angry, or unhappy. This tiny nub acts as a memory indexer—sending memories out to the appropriate part of the cerebral hemisphere for long-term storage and retrieving them when necessary.
They are responsible for initiating and integrating movements. Image 5 Making Connections The brain and the rest of the nervous system are composed of many different types of cells, but the primary functional unit is a cell called the neuron.
All sensations, movements, thoughts, memories, and feelings are the result of signals that pass through neurons. Neurons consist of three parts. The neuron is usually surrounded by many support cells. This sheath can include a fatty molecule called myelin, which provides insulation for the axon and helps nerve signals travel faster and farther.
Or axons may be very long, such as those that carry messages from the brain all the way down the spinal cord. Image 6 Scientists have learned a great deal about neurons by studying the synapse—the place where a signal passes from the neuron to another cell.
These receptors can change the properties of the receiving cell. If the receiving cell is also a neuron, the signal can continue the transmission to the next cell. It governs muscle contractions and causes glands to secrete hormones. GABA gamma-aminobutyric acid is called an inhibitory neurotransmitter because it tends to make cells less excitable.
It helps control muscle activity and is an important part of the visual system. Serotonin is a neurotransmitter that constricts blood vessels and brings on sleep. It is also involved in temperature regulation. Dopamine is an inhibitory neurotransmitter involved in mood and the control of complex movements.
Many medications used to treat behavioral disorders work by modifying the action of dopamine in the brain. Neurological Disorders When the brain is healthy it functions quickly and automatically. But when problems occur, the results can be devastating.
Some 50 million people in this country—one in five—suffer from damage to the nervous system.The Brain Foundation’s A-Z of Brain Disorders aims to provide a resource for people newly-diagnosed with brain-related disorders, their friends and relatives, and health professionals.
The directory contains basic information, reviewed by medical experts, about the condition and where to turn for additional information and for support.
Brain Scan. Brain Scan methods allow neuroscientists to see inside the living brain. These methods help neuroscientists to understand the relationships between specific areas of the brain and their functions, to locate the areas of the brain that are affected by neurological disorder and to develop new strategies to treat brain disorders.
Brain Disorders welcomes attendees, presenters, and exhibitors from all over the world to “ International Conference on Neurology and Brain Disorders ” which is going to be held during September , at Philadelphia, USA.
Brain images, Brains of Normal Control Males compared to brains of Males w/Schizophrenia. Source: Laboratory of Neuro Imaging, University of California, Los Angeles,. For more pictures of the disease process of schizophrenia see below, and also: Neuro Imaging of the impact of the disease process of schizophrenia.
Autism, or autism spectrum disorder (ASD), refers to a broad range of conditions characterized by challenges with social skills, repetitive behaviors, speech and nonverbal communication.* We now know that there is not one autism but many subtypes, and each .
An electroencephalogram (EEG) is a recording of brain activity. During the test, small sensors are attached to the scalp to pick up the electrical signals produced when brain cells send messages to .