Researchers at the University of Oslo in Norway examined working-memory treatments across 23 different studies. They found that working-memory training improved performance on tasks related to the training itself, but did not affect more general cognitive performance, such as verbal skills, attention, reading or arithmetic. The findings suggest that working-memory training does not improve cognition, boost IQ or improve attention-deficit hyperactivity disorder or dyslexia.

meta-analysis

Explanation:

Meta-analysis is typically a statistical analysis whereby the results of several scientific studies are combined together. Meta-analysis is usually performed when multiple scientific studies is actually addressing the same question.

We are informed that researchers at the University of Oslo in Norway examined working-memory treatments across 23 different studies. This is a typical illustration of meta-analysis as different studies are carried out to address same question.

answer; delirium is a common adverse reaction seen when elderly patients take diphenhydramine;