PERPLEXITY STATES

A form of mental confusion in which the patient is assailed with doubt and uncertainty about his own thoughts.Perplexity is one of the more...

PAIN DRIVE

drive directed to the removal of noxious stimulation.This basic drive is activated by special sense organs in the form of free nerve endings embedded...

PAIRED ASSOCIATES LEARNING

A technique for studying learning. Words, syllables, digits, or other items are learned in pairs, and the subject is later tested on his ability...

PARALOGICAL THINKING

False, illogical thinking found particularly in schizophrenic reactionsParalogical thinking may take many forms. A patient who is preoccupied with his own subjective thoughts and...

PARAMNESIA

A falsification or distortion of memory; a confusion of fact with fantasy in recalling events.We have all experienced some of the “tricks” that memory...

PARANOID REACTION (GENERAL)

A psychotic reaction marked by more or less systematized delusions without personality disorganization or deterioration. The term was first applied to persecutory and grandoise...

PARANOID STATES

A psychotic disorder characterized by transient, poorly systematized delusions.Paranoid states appear to be intermediate between “true” paranoia and paranoid schizophrenia. The delusions are usually...

PARATHYROID GLANDS

Two pairs of small endocrine glands adjacent to the thyroid gland in the neck, which regulate calcium metabolism and maintain the normal excitability of...

PARKINSON’S DISEASE

A chronic degenerative disease of the central nervous system, usually occurring between the ages of fifty and seventy. Atrophy takes place primarily in the...

PASSIVE-AGGRESSIVE PERSONALITY

A personality trait disturbance characterized by immaturity and failure to develop an adequate balance between dependence and independence, and between aggressiveness and submissiveness.This failure...

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