ADHD (Attention Deficit Hyperactivity Disorder in Children) Glossary of Terms

The following are health and medical definitions of terms that appear in the ADHD (Attention Deficit Hyperactivity Disorder in Children) article.

Addiction: An uncontrollable craving, seeking, and use of a substance such as alcohol or a...

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ADHD: Attention deficit hyperactivity disorder.

Affinity: In immunology, the strength of binding interaction between antigen and antibody ...

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Agonist: A substance that acts like another substance and therefore stimulates an action. ...

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Alternative medicine: Alternative medicine is the term for medical products and practices ...

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American Academy of Pediatrics: AAP. Its member pediatricians "dedicate their efforts and ...

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American Psychiatric Association: A medical specialty society with over 35,000 US and inte...

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Amphetamine: A drug that has a stimulant effect on the central nervous system that can be ...

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Anorexia: An eating disorder characterized by markedly reduced appetite or total aversion...

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Antidepressant: Anything, and especially a drug, used to prevent or treat depression.

Antidepressants: Anything, and especially a drug, used to prevent or treat depression.

Antisocial personality: See: Antisocial personality disorder.

Antisocial personality disorder: A pervasive pattern of disregard for and violation of the...

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Anxiety: A feeling of apprehension and fear, characterized by physical symptoms such as pa...

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Attention deficit hyperactivity disorder: A disorder in which a person is unable to contro...

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Biochemical: Relating to biochemistry, the application of the tools and concepts of chemis...

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Biofeedback: A method of treatment that uses a monitor to measure patients' physiologic in...

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Bipolar disorder: A mood disorder sometimes called manic-depressive illness or manic-depr...

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Blood pressure: The blood pressure is the pressure of the blood within the arteries. It is...

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Brain: The portion of the central nervous system that is located within the skull. It func...

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Brain stem: The stem-like part of the base of the brain that is connected to the spinal co...

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Caffeine: A stimulant compound found naturally in coffee, tea, cocoa (chocolate), and kola...

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Cardiovascular: Relating to the circulatory system, which comprises the heart and blood ve...

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Chronic: In medicine, lasting a long time. A chronic condition is one that lasts 3 months ...

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Chronic pain: Pain (an unpleasant sense of discomfort) that persists or progresses over ...

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Cluster: In epidemiology, an aggregation of cases of a disease or another health-related c...

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Cognitive: Having to do with thought, judgment, or knowledge.

Depression: An illness that involves the body, mood, and thoughts and that affects the way...

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Diagnosis: 1 The nature of a disease; the identification of an illness. 2 A ...

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Dopamine: An important neurotransmitter (messenger) in the brain.

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Dysfunction: Difficult function or abnormal function.

Dyslexia: A specific developmental disability that alters the way the brain processes writ...

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Ear: The hearing organ. There are three sections of the ear, according to the anatomy tex...

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EEG: Electroencephalogram.

Euphoria: Elevated mood. Euphoria is a desirable and natural occurrence when it results f...

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Family history: The family structure and relationships within the family, including inform...

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Family medicine: Also called family practice. The medical specialty which provides continu...

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Family therapy: A type of psychotherapy designed to identify family patterns that contribu...

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Fatigue: A condition characterized by a lessened capacity for work and reduced efficiency ...

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Fatty acid: One of many molecules that are long chains of lipid-carboxylic acid found in f...

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FDA: Food and Drug Administration.

Feedback: In order to maintain a stable internal environment, or homeostasis, the body use...

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Fetal alcohol syndrome: The sum total of the damage done to the child before birth as a re...

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Food and Drug Administration: An agency within the US Public Health Service that provides ...

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Genes: The basic biological units of heredity. Segments of deoxyribonucleic acid (DNA) nee...

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Genetic: Having to do with genes and genetic
information.

Headache: A pain in the head with the pain being above the eyes or the ears, behind the he...

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Heart: The muscle that pumps blood received from veins into arteries throughout the body. ...

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Heart attack: The death of heart muscle due to the loss of blood supply. The loss of bloo...

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Heart rate: The number of heartbeats per unit of time, usually per minute. The heart rate ...

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Herbal: 1. An adjective, referring to herbs, as in an herbal tea.
2. A...

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Hyperactivity: A higher than normal level of activity. An organ can be described as hyper...

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Impulsivity: Inclined to act on impulse rather than thought. People who are overly impulsi...

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Incidence: The frequency with which something, such as a disease or trait, appears in a pa...

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Indicate: In medicine, to make a treatment or procedure advisable because of a particular ...

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Inheritance: The transmission of a gene from parent to child. The pattern of inheritance i...

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Insomnia: The perception or complaint of inadequate or poor-quality sleep due to a number ...

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Intervention: The act of intervening, interfering or interceding with the intent of modify...

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Involuntary: Done other than in accordance with the conscious will of the individual. The ...

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Lab test: A test that is done in the laboratory where the appropriate equipment, supplies,...

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Laboratory: A place for doing tests and research procedures, and for preparing chemicals a...

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Lethargy: Abnormal drowsiness, stupor.

Marker: A piece of DNA that lies on a chromosome so close to a gene that the marker and t...

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Medical history: 1. In clinical medicine, the patient's past and present which may ...

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Memory: 1. The ability to recover information about past events or knowledge. ...

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Motor: Something that produces or refers to motion. For example, a motor neuron is a nerve...

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MRI: Magnetic resonance imaging.

Neck: The part of the body joining the head to the shoulders. Also, any narrow or constric...

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Neurological: Having to do with the nerves or the nervous system as, for example, a neurol...

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Neurotransmitter: A chemical that is released from a nerve cell which thereby transmits an...

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NIMH: Stands for the National Institute of Mental Health, one of the National Institutes o...

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Onset: In medicine, the first appearance of the signs or symptoms of an illness as, for ex...

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Ophthalmic: Pertaining to the eye. For example, an ophthalmic ointment is designed for the...

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Pain: An unpleasant sensation that can range from mild, localized discomfort to agony. Pa...

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Pathogenesis: The development of a disease and the chain of events leading to that disease...

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Pathology: The study of disease. Pathology has been defined as "that branch of medicine...

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Pediatric: Pertaining to children.

Pediatrics: The field of medicine that is concerned with the health of infants, children, ...

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Personality disorder: A disorder characterized by the chronic use of mechanisms of coping ...

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Pharmacy: A location where prescription medications are sold. A pharmacy is constantly sup...

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Physiologic: Something that is normal, that is due neither to anything pathologic nor sign...

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Prevalence: The proportion of individuals in a population having a disease or characterist...

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Probability: The likelihood that something will happen. For example, a probability of less...

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Prognosis: The forecast of the probable outcome or course of a disease; the patient's chan...

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Psychiatric: Pertaining to or within the purview of psychiatry, the medical specialty conc...

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Psychiatrist: A physician who specializes in the prevention, diagnosis, and treatment of m...

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Psychiatry: The medical specialty that is concerned with the prevention, diagnosis, and tr...

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Psychosis: In the general sense, a mental illness that markedly interferes with a person'...

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Psychotherapy: The treatment of a behavior disorders, mental illness, or any other conditi...

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Puberty: Adolescence, the period in which the human body first becomes capable of reproduc...

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Quality of life: The patient's ability to enjoy normal life activities. Quality of life is...

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Rebound: The reversal of response upon withdrawal of a stimulus.

Recurrent: Appearing or occurring again. For example, a recurrent fever is a fever that ha...

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Risk factor: Something that increases a person's chances of developing a disease. For exam...

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Schizophrenia: One of several brain diseases whose symptoms may include loss of personalit...

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Serotonin: A neurotransmitter that is involved in the transmission of nerve impulses. Sero...

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Short-term memory: A system for temporarily storing and managing information required to ...

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Shoulder: A structure made up of two main bones: the scapula (shoulder blade) and the hume...

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Sibling: A brother or sister.

Sleep: The body's rest cycle.

Stage: As regards cancer, the extent of a cancer, especially whether the disease has spre...

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Stroke: The sudden death of brain cells due to lack of oxygen, caused by blockage of blood...

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Substance: 1. Material with particular features.
2. The material that...

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Substance abuse: The excessive use of a substance, especially alcohol or a drug. (There is...

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Syndrome: A combination of symptoms and signs that together represent a disease process.

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Therapeutic: Relating to therapeutics, the branch of medicine that is concerned specifical...

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Therapy: The treatment of disease. Therapy is synonymous with treatment.

Twitching: : Involuntary contractions of groups of muscle fibers. Also known as fasciculat...

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Vital: Necessary to maintain life. For example, breathing is a vital function.

Weight loss: Weight loss is a decrease in body weight resulting from either voluntary (die...

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Working memory: Short-term (recent) memory.

X-ray: High-energy radiation with waves shorter than those of visible light. X-ray is used...

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