BIOLOGY 1P03 Lecture Notes - Dementia, Maudsley Hospital, Mood Disorder
19 Jan 2013
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Consist of behavioural deficits, such as avolition, alogia, anhedonia, flat affect, and asociliaty. Some evidence that negative symp are associated with earlier onset brain damage (enlarged ventricles) and progressive loss of cognitive skills (iq decline) Ex; flat effect (lack of emotional expressiveness) can be a side effect of antipsychotic medication. Observing patients over extended periods of time negative symp such as flat affect and anhedonia are difficult to distinguish from aspects of depression so specifity becomes an issue. Apathy or avoliytion referred to lack of energy and a seeming absence of interest in or an inability to persist in what are usually routine activities. Patients may become inattentive to grooming and personal hygiene. They have difficulty persisting at work, school or household chores and may spend much of their time sitting around doing noting. A negative thought disorder, alogia can take several forms. In poverty of speech, the sheer amount of speech is greaydly reduced.
