A system which emphasizes that experience and behavior contain basic patterns and relationships which cannot be reduced to simpler components; that is, the whole is greater than the sum of its parts.

A psychological test consisting of nine geometric designs on cards. The subject is asked to redraw them from memory after each one is presented individually.

A form of psychotherapy with emphasis on the interplay of organism and environment. Basic to this therapy is the development of awareness and maturity, as well as self-confidence.

The tendency to perceive an incomplete pattern or object as complete or whole. This includes the Gestalt Law of Closure.

Unstable isotopes of krypton that decay or disintegrate emitting radiation. Kr atoms with atomic weights 74-77, 79, 81, 85, and 87-94 are radioactive krypton isotopes.

The appearance of the face that is often characteristic of a disease or pathological condition, as the elfin facies of WILLIAMS SYNDROME or the mongoloid facies of DOWN SYNDROME. (Random House Unabridged Dictionary, 2d ed)

The selecting and organizing of visual stimuli based on the individual's past experience.

Investigative technique commonly used during ELECTROENCEPHALOGRAPHY in which a series of bright light flashes or visual patterns are used to elicit brain activity.

Congenital structural deformities, malformations, or other abnormalities of the cranium and facial bones.

Mental process to visually perceive a critical number of facts (the pattern), such as characters, shapes, displays, or designs.

The sensory discrimination of a pattern shape or outline.

A cognitive process involving the formation of ideas generalized from the knowledge of qualities, aspects, and relations of objects.

An illusion of vision usually affecting spatial relations.

The science dealing with the correlation of the physical characteristics of a stimulus, e.g., frequency or intensity, with the response to the stimulus, in order to assess the psychologic factors involved in the relationship.

The ratio of alveolar ventilation to simultaneous alveolar capillary blood flow in any part of the lung. (Stedman, 25th ed)

A characteristic symptom complex.

Libraries in which a major proportion of the resources are available in machine-readable format, rather than on paper or MICROFORM.

Collections of systematically acquired and organized information resources, and usually providing assistance to users. (ERIC Thesaurus, http://www.eric.ed.gov/ accessed 2/1/2008)

The use of automatic machines or processing devices in libraries. The automation may be applied to library administrative activities, office procedures, and delivery of library services to users.

A pair of ophthalmic lenses in a frame or mounting which is supported by the nose and ears. The purpose is to aid or improve vision. It does not include goggles or nonprescription sun glasses for which EYE PROTECTIVE DEVICES is available.

Deviations from the average or standard indices of refraction of the eye through its dioptric or refractive apparatus.

Lenses designed to be worn on the front surface of the eyeball. (UMDNS, 1999)

Persons with loss of vision such that there is an impact on activities of daily living.

Clarity or sharpness of OCULAR VISION or the ability of the eye to see fine details. Visual acuity depends on the functions of RETINA, neuronal transmission, and the interpretative ability of the brain. Normal visual acuity is expressed as 20/20 indicating that one can see at 20 feet what should normally be seen at that distance. Visual acuity can also be influenced by brightness, color, and contrast.

Area of the OCCIPITAL LOBE concerned with the processing of visual information relayed via VISUAL PATHWAYS.

The social institution involving legal and/or religious sanction whereby individuals are joined together.

Married persons, i.e., husbands and wives, or partners. Domestic partners, or spousal equivalents, are two adults who have chosen to share their lives in an intimate and committed relationship, reside together, and share a mutual obligation of support for the basic necessities of life.

A psychological theory based on dimensions or categories used by a given person in describing or explaining the personality and behavior of others or of himself. The basic idea is that different people will use consistently different categories. The theory was formulated in the fifties by George Kelly. Two tests devised by him are the role construct repertory test and the repertory grid test. (From Stuart Sutherland, The International Dictionary of Psychology, 1989)

A willingness to reveal information about oneself to others.

The individual's experience of a sense of fulfillment of a need or want and the quality or state of being satisfied.

Predetermined sets of questions used to collect data - clinical data, social status, occupational group, etc. The term is often applied to a self-completed survey instrument.

Analog or digital communications device in which the user has a wireless connection from a telephone to a nearby transmitter. It is termed cellular because the service area is divided into multiple "cells." As the user moves from one cell area to another, the call is transferred to the local transmitter.

Computer programs or software installed on mobile electronic devices which support a wide range of functions and uses which include television, telephone, video, music, word processing, and Internet service.

A type of MICROCOMPUTER, sometimes called a personal digital assistant, that is very small and portable and fitting in a hand. They are convenient to use in clinical and other field situations for quick data management. They usually require docking with MICROCOMPUTERS for updates.

Authoritative treatises on drugs and preparations, their description, formulation, analytic composition, physical constants, main chemical properties used in identification, standards for strength, purity, and dosage, chemical tests for determining identity and purity, etc. They are usually published under governmental jurisdiction (e.g., USP, the United States Pharmacopoeia; BP, British Pharmacopoeia; P. Helv., the Swiss Pharmacopoeia). They differ from FORMULARIES in that they are far more complete: formularies tend to be mere listings of formulas and prescriptions.

Sequential operating programs and data which instruct the functioning of a digital computer.

A type of procedural memory manifested as a change in the ability to identify an item as a result of a previous encounter with the item or stimuli.

People who take drugs for a non-therapeutic or non-medical effect. The drugs may be legal or illegal, but their use often results in adverse medical, legal, or social consequences for the users.

A branch of psychology which investigates the correlation between experience or behavior and the basic neurophysiological processes. The term neuropsychology stresses the dominant role of the nervous system. It is a more narrowly defined field than physiological psychology or psychophysiology.

Tests designed to assess neurological function associated with certain behaviors. They are used in diagnosing brain dysfunction or damage and central nervous system disorders or injury.

Disturbances in mental processes related to learning, thinking, reasoning, and judgment.

A disorder of cognition characterized by the tetrad of finger agnosia, dysgraphia, DYSCALCULIA, and right-left disorientation. The syndrome may be developmental or acquired. Acquired Gerstmann syndrome is associated with lesions in the dominant (usually left) PARIETAL LOBE which involve the angular gyrus or subjacent white matter. (From Adams et al., Principles of Neurology, 6th ed, p457)

Intellectual or mental process whereby an organism obtains knowledge.

Endoscopic examination, therapy or surgery of the interior of the uterus.

Use of written, printed, or graphic materials upon or accompanying a food or its container or wrapper. The concept includes ingredients, NUTRITIONAL VALUE, directions, warnings, and other relevant information.

Pathological processes of the BREAST.

Facilities for the preparation and dispensing of drugs.

A slightly movable cartilaginous joint which occurs between the pubic bones.

Private, not-for-profit hospitals that are autonomous, self-established, and self-supported.

A collection of blood outside the BLOOD VESSELS. Hematoma can be localized in an organ, space, or tissue.