Table I. Symptomatology of depressive disorders.^8-10 EEG, electroencephalogram.

Category of depressive symptoms	Symptom list
Affective symptoms	Depressed mood
	Anhedonia
	Anxiety
Psychomotor disturbances	Retardation
	Agitation
	Loss of energy and activity
Disturbances of cognition and memory	Feeling of guilt
	Feelings of worthlessness
	Mood-congruent and incongruent delusions
	Concentration deficits
	Memory deficits
Psychovegetative disturbances and somatic complaints	Sleep disturbances (insomnia, early-morning awakening)
	Diurnal changes
	Loss of appetite and weight
	Sexual dysfunction
	Constipation
	Pain syndromes
	Hypertonia
	Tachycardia
Biological signs	Hypercortisolemia
	Abnormal thyroid function tests
	Sleep EEG abnormalities
	Hippocampal atrophy
	Genetic rist factors
	Enhanced cardiovascula risk