Reversed vegetative symptoms
Encyclopedia
Reversed vegetative symptoms include only oversleeping (hypersomnia
) and overeating (hyperphagia), as compared to insomnia and loss of appetite
(vegetative symptoms). These features are characteristic of atypical depression
(AD).
However, there have been studies claiming that these symptoms alone are sufficient to diagnose the condition of AD.
Hypersomnia
Hypersomnia is a disorder characterized by excessive amounts of sleepiness.There are two main categories of hypersomnia: primary hypersomnia and recurrent hypersomnia...
) and overeating (hyperphagia), as compared to insomnia and loss of appetite
Appetite
The appetite is the desire to eat food, felt as hunger. Appetite exists in all higher life-forms, and serves to regulate adequate energy intake to maintain metabolic needs. It is regulated by a close interplay between the digestive tract, adipose tissue and the brain. Decreased desire to eat is...
(vegetative symptoms). These features are characteristic of atypical depression
Atypical depression
Atypical depression is a subtype of dysthymia and major depression, sharing many of the symptoms of both, but also being characterized by mood reactivity—being able to experience improved mood in response to positive events. In contrast, sufferers of "melancholic" depression generally cannot...
(AD).
However, there have been studies claiming that these symptoms alone are sufficient to diagnose the condition of AD.