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    The ability to focus in a sustained manner on a particular stimulus or activity. A disturbance in attention may be manifested by easy distractibility or difficulty in finishing tasks or in concentrating on work.


The ability to acquire general or special types of knowledge or skill.

The ability to focus in a sustained manner on a particular stimulus or activity. A disturbance in attention may be manifested by easy distractibility or difficulty in finishing tasks or in concentrating on work.

The inability to maintain attention, that is, the shifting from one area or topic to another with minimal provocation, or attention being drawn too frequently to unimportant or irrelevant external stimuli.


Attending or Primary Physician
The doctor who has the main responsibility for your care while you are in the hospital. There may be other doctors caring for you such as consulting doctors, resident doctors, and medical students.

Attending physician
The doctor who is primarily responsible for a patient's care.

Attention deficit disorder (ADD)
An inability to control behavior due to difficulty in processing neural stimuli.

Attention deficit hyperactivity disorder
A behavior disorder originating in childhood in which the essential features are signs of developmentally inappropriate inattention, impulsivity, and hyperactivity. Although most individuals have symptoms of both inattention and hyperactivity-impulsivity, one or the other pattern may be predominant. The disorder is more frequent in males than females. Onset is in childhood. Symptoms often attenuate during late adolescence although a minority experience the full complement of symptoms into mid-adulthood.

Relating to attention. The term is used in psychology and child development as, for example, early television exposure has been found to be associated with attentional problems at age 7.

To weaken, dilute, thin, reduce, weaken, diminish.

Weakened, diluted, thinned, reduced, weakened, diminished.

Attenuated familial adenomatous polyposis
An inherited predisposition to colorectal cancer characterized by fewer than 100 adenomatous polyps in the colon and rectum. It is said to be attenuated because there are fewer polyps than in classic familial adenomatous polyposis (FAP). People with attenuated familial adenomatous polyposis (AFAP) also tend to be older at the diagnosis of their polyps (average age of 44 years) and cancer (average age of 56 years), 10 to 15 years later than in classic FAP. The right side of the colon tends to be involved in AFAP and rectal involvement is rare. AFAP is transmitted in an autosomal dominant manner.

Attenuated FAP
Attenuated familial adenomatous polyposis.

Attenuated virus
"To attenuate is to weaken or to make (or become) thin. Now ""attenuate"" refers to procedures that weaken an agent of disease (a pathogen). An attenuated virus is a weakened, less vigorous virus. A vaccine against a viral disease can be made from an attenuated, less virulent strain of the virus, a virus capable of stimulating an immune response and creating immunity but not causing illness."


Amnestic aphasia
Loss of the ability to name objects.

An inability to produce speech sounds that require the use of the larynx that is not due to a lesion in the central nervous system.

Perception as modified and enhanced by one's own emotions, memories, and biases.

Inability to carry out previously learned skilled motor activities despite intact comprehension and motor function; this may be seen in dementia.

Inability to recognize familiar objects by touch that cannot be explained by a defect of elementary tactile sensation.


Auditory hallucination
A hallucination involving the perception of sound, most commonly of voices. Some clinicians and investigators would not include those experiences perceived as coming from inside the head and would instead limit the concept of true auditory hallucinations to those sounds whose source is perceived as being external.

A premonitory, subjective brief sensation (e.g., a flash of light) that warns of an impending headache or convulsion. The nature of the sensation depends on the brain area in which the attack begins. Seen in migraine and epilepsy.

Sensual self-gratification. Characteristic of, but not limited to, an early stage of emotional development. Includes satisfactions derived from genital play, masturbation, fantasy, and oral, anal, and visual sources.

Automatic and apparently undirected nonpurposeful behavior that is not consciously controlled. Seen in psychomotor epilepsy.

Referring to adaptation by changing the self.

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