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Delirium involves a quick change between mental states (for example, from lethargy to agitation and back to lethargy).
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The symptoms of delirium come on quickly, in hours or days, in contrast to those of dementia , which develop much more slowly. Delirium symptoms typically fluctuate through the day, with periods of relative calm and lucidity alternating with perio...
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Symptoms of delirium include a confused state of mind accompanied by poor attention, impaired recent memory, irritability, inappropriate behavior (such as the use of vulgar language, despite lack of a history of such behavior), and anxiety and fea...
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Stress can come from any situation or thought that makes you feel frustrated, angry, or anxious. What is stressful to one person is not necessarily stressful to another. Anxiety is a feeling of apprehension or fear. The source of this uneasiness i...
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Anxiety is a bodily response to a perceived threat or danger. It is triggered by a combination of biochemical changes in the body, the patient's personal history and memory, and the social situation. It is important to distinguish between anxiety ...
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Systematic desensitization is a technique used to treat phobias and other extreme or erroneous fears based on principles of behavior modification .
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Anxiety is a multisystem response to a perceived threat or danger. It reflects a combination of biochemical changes in the body, the patient's personal history and memory, and the social situation. As far as we know, anxiety is a uniquely human ex...
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Anxiety is a multisystem response to a perceived threat or danger. It reflects a combination of biochemical changes in the body, the patient's personal history and memory , and the social situation at hand. Human anxiety involves an ability to use...
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Anxiety is a condition of persistent and uncontrollable nervousness, stress, and worry that is triggered by anticipation of future events, memories of past events, or ruminations over day-to-day events, both trivial and major, with disproportionat...
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A condition of persistent nervousness, stress, and worry that is triggered by anticipation of future events, memories of past events, or ruminations about the self Stimulated by real or imagined dangers, anxiety affects people of all ages and soci...
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Memory loss (amnesia) is unusual forgetfulness.
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Memory loss can be partial or total. Most memory loss occurs as part of the normal aging process. However, memory loss may also occur as a result of severe emotional trauma or due to brain damage following disease or physical trauma. Memory loss c...
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Amnesia refers to the loss of memory. Memory loss may result from two-sided (bilateral) damage to parts of Memory loss may result from bilateral damage to the limbic system of the brain responsible for memory storage, processing, and recall. (Illu...
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Drowsiness refers to feeling abnormally sleepy during the day. People who are drowsy may fall asleep in inappropriate situations or at inappropriate times. See also: Idiopathic hypersomnia
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Hypersomnia refers to a set of related disorders that involve excessive daytime sleepiness.
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Irritability is an excessive response to stimuli.
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Agitation is an unpleasant state of extreme arousal, increased tension, and irritability.
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Many people with cancer experience memory changes—such as mild forgetfulness, an inability to concentrate on more than one task, or more severe memory loss—after undergoing chemotherapy or radiation treatments. In other cases, as in a person with ...
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Fidgeting is usually used to describe someone who is seen as not being able to sit still. Fidgety people move in their seats constantly, move their hands and feet and appear to be in perpetual motion.
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Problem behavior is often associated with adolescence but may manifest in the very young or in adults. Delinquency, drug use, academic failure, risky sexual behavior, violence, property damage, vandalism and disregard of the rights of others are all problem behaviors.
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The ability to concentrate is a function of mental status and cognition. Impairment of the ability to concentrate can be a problem of neurologic or psychiatric origin or a combination of behavior and mentation.
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Decreased consciousness is reduced alertness or awareness.
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Depression, also known as depressive disorders or unipolar depression, is a mental illness characterized by a profound and persistent feeling of sadness or despair and/or a loss of interest in things that once were pleasurable. Disturbance in slee...
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Depression is sometimes referred to as the common cold of mental illness. It is a debilitating disease with significant societal costs. It is, however, one of the most clearly defined and treatable of mental illnesses. Technically, the term "depre...
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The creation of imaginary persons, objects, or events in response to a psychological need. Fantasy plays an important role in the lives of children, especially in their play. Because of their egocentric focus, children, unlike healthy adults, can ...
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Depression may be described as feeling sad, blue, unhappy, miserable, or down in the dumps. Most of us feel this way at one time or another for short periods. True clinical depression is a mood disorder in which feelings of sadness, loss, anger, o...
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Everybody feels sad sometimes, but to be clinically depressed is not just a matter of feeling sad. A patient with cancer is diagnosed as having major depression only if certain symptoms, such as loss of pleasure or thoughts of death, are present f...
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An emotional state or mood characterized by one or more of these symptoms: sad mood, low energy, poor concentration, sleep or appetite changes, feelings of worthlessness or hopelessness, and thoughts of suicide. Until recently, it was thought that...
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Depression is the general name for a family of illnesses known as depressive disorders. Depression is an illness that affects not only the mood and thoughts, but also the physical functions of affected individuals. Depressive disorders usually res...
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Depression and depressive disorders (unipolar depression) are mental illnesses characterized by a profound and persistent feeling of sadness or despair and/or a loss of interest in things that once were pleasurable. Disturbance in sleep , appetite...
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Depression is the general name for a family of illnesses known as depressive disorders. Depression is an illness that affects not only the mood and thoughts, but also the physical functions of affected individuals. Depressive disorders usually res...
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Depression or depressive disorders (unipolar depression) are mental illnesses characterized by a profound and persistent feeling of sadness or despair and/or a loss of interest in things that were once pleasurable. Disturbance in sleep, appetite, ...
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Depression or depressive disorders (unipolar depression) are mental illnesses characterized by a profound and persistent feeling of sadness or despair and/or a loss of interest in things that were once pleasurable. Disturbance in sleep, appetite, ...
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A depressive disorder is defined by the National Institute of Mental Health (NIMH) as an illness that involves the body, mood and thoughts. It encompasses feelings of overwhelming sadness and despair that persist or intensify over time.
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Impaired sensation is often a signal that there something affecting a nerve or the nervous system. Changes in sensations are often subjective and difficult to describe, that is, experienced by the patient but difficult for the provider to diagnose and treat.
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Aimless movements can be a symptom of a primary or secondary movement disorder, side effect of a medication, psychiatric disturbance or dementia. Aimless or purposeless movement is therefore a significant symptom requiring evaluation by a physician to determine the origin of the problem.
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The amnestic disorders are a group of disorders that involve loss of memories previously established, loss of the ability to create new memories, or loss of the ability to learn new information. As defined by the mental health professional's handb...
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