Reading retardation
Reading retardation means impaired ability to read. Reading retardation is an impairment that may, for example, reflect mental retardation or cultural deprivation.
Reading retardation is different from dyslexia, a specific reading disability due to a defect in the brain’s (higher cortical) processing of graphic symbols; in other words, dyslexia is a learning disability that alters the way the brain processes written material.
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- Reagent
A substance that is used to produce a chemical reaction that allows researchers to detect, measure, produce, or change other substances.
- Rebound
The reversal of response upon withdrawal of a stimulus.
- Rebound effect
The production of increased negative symptoms when the effect of a drug has passed or the patient no longer responds to the drug. If a drug produces a rebound effect, the condition it was used to treat may come back even stronger when the drug is discontinued or loses effectiveness.
- Recalcitrant
Stubborn. For example, a recalcitrant case of pneumonia stubbornly resists treatment.
- Recalls, FDA
The recall of a defective or possibly harmful product by the US Food & Drug Administration (the FDA). These recalls are often highly publicized in newspapers and on radio and TV news broadcasts. Recent headlines in major newspapers such as “FDA Orders Peanut Butter Recall” and “FDA Orders 6,500 Cases of Red-Dyed Mints Recalled” are […]