Glossary of Technical Terms 825
expansive Lack of restraint in expressing one’s feelings, frequently with an over-
valuation of one’s significance or importance.
irritable Easily annoyed and provoked to anger.
mood-congruent psychotic features Delusions or hallucinations whose content is en-
tirely consistent with the typi cal themes of a depressed or manic mood. If the mood is
depressed, the content of the delusions or hallucinations would involve themes of per-
sonal inadequacy, guilt, disease, death, ni hilism, or deserved punishment. The content
of the delusion may include themes of persec ution if these are based on self-derogatory
concepts such as deserved puni shment. If the mood is manic,  the content of the delusions
or hallucinations would involve themes of in flated worth, power, knowledge, or iden-
tity, or a special relationship to a deity or a famous person. The content of the delusion
may include themes of persecution if thes e are based on concepts such as inflated
worth or deserved punishment.
mood-incongruent psychotic features Delusions or hallucinations whose content is not
consistent with the typical themes of a depr essed or manic mood. In the case of depres-
sion, the delusions or hallucinations would not involve themes of personal inadequacy,
guilt, disease, death, nihilism,  or deserved punishment. In the case of mania, the delu-
sions or hallucinations would not involve themes of inflated worth, power, knowledge,
or identity, or a special relationsh ip to a deity or a famous person.
multiple sleep latency test Polysomnographic assessment of the sleep-onset period,
with several short sleep-wake cycles assessed during a single session. The test repeat-