DEPERSONALIZATION DISORDER

A dissociative disorder.

DEPRIVATION

The removal or denial of something or the reduction of access to a reinforcer.

DERAILMENT OF VOLITION

An indecisiveness where goals are replaced by irrelevant impulses and contradictory wishes.

DERMO-OPTICAL PERCEPTION (DOP)

Ability to see and identify colour by touch. Also called cutaneous perception of colour.

DESIGN FLUENCY TEST

A group of tests that are time limited and need to draw figures or remodel lines to make shapes. Also called figural fluency test.

DESTRUDO

The energy that is associated with Thanatos, the instinct to deter death rather than Eros the life instinct. See mortido.

DETERMINER

Linguistics. Word with a noun or pronoun limiting ot determining its reference.

DEVELOPMENT

The progressive series of change in something.

DEVELOPMENTAL SCALE

Is used to assess the degree of progress by typical milestones.

DEXAMETHASONE SUPPRESSION TEST (DST)

Testing the ability of dexamethasone in inhibiting secretions that suppress cortisol levels in the blood.

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