Alzheimer's disease & dementia

Who's looking out for aging doctors susceptible to cognitive decline?

Older physicians benefit from their many years of experience and the skills they have developed over decades of practice. At the same time, they may be at risk of cognitive decline, raising concerns about job performance ...

Psychology & Psychiatry

How to help kids cope with back-to-school stress

Kids have coped with a lot of change over the past several years. It's important to recognize that change, even good change, can sometimes be challenging for kids. As we work on establishing post-pandemic equilibrium, we ...

Biomedical technology

Efficient fall detection based on smart insoles

Fall detection is a typical application of both medical expert systems and wearable expert systems. There are four primary types of falls, i.e., left-sided horizontal, right-sided horizontal, supine, and prone, whereas most ...

page 1 from 40

Expert

An expert ( Audio (US) (help·info), also called cognoscente) is someone widely recognized as a reliable source of technique or skill whose faculty for judging or deciding rightly, justly, or wisely is accorded authority and status by their peers or the public in a specific well-distinguished domain. An expert, more generally, is a person with extensive knowledge or ability based on research, experience, or occupation and in a particular area of study. Experts are called in for advice on their respective subject, but they do not always agree on the particulars of a field of study. An expert can be, by virtue of credential, training, education, profession, publication or experience, believed to have special knowledge of a subject beyond that of the average person, sufficient that others may officially (and legally) rely upon the individual's opinion. Historically, an expert was referred to as a sage (Sophos). The individual was usually a profound thinker distinguished for wisdom and sound judgment.

Experts have a prolonged or intense experience through practice and education in a particular field. In specific fields, the definition of expert is well established by consensus and therefore it is not necessary for an individual to have a professional or academic qualification for them to be accepted as an expert. In this respect, a shepherd with 50 years of experience tending flocks would be widely recognized as having complete expertise in the use and training of sheep dogs and the care of sheep. Another example from computer science is that an expert system may be taught by a human and thereafter considered an expert, often outperforming human beings at particular tasks. In law, an expert witness must be recognized by argument and authority.

Research in this area attempts to understand the relation between expert knowledge and exceptional performance in terms of cognitive structures and processes. The fundamental research endeavor is to describe what it is that experts know and how they use their knowledge to achieve performance that most people assume requires extreme or extraordinary ability. Studies have investigated the factors that enable experts to be fast and accurate.

This text uses material from Wikipedia, licensed under CC BY-SA