A schedule prescribing when the subject is to be reinforced or rewarded in terms of temporal interval in psychological experiments. The schedule may be continuous or intermittent.
The strengthening of a conditioned response.
Learning situations in which the sequence responses of the subject are instrumental in producing reinforcement. When the correct response occurs, which involves the selection from among a repertoire of responses, the subject is immediately reinforced.
Family in the order COLUMBIFORMES, comprised of pigeons or doves. They are BIRDS with short legs, stout bodies, small heads, and slender bills. Some sources call the smaller species doves and the larger pigeons, but the names are interchangeable.
An act which constitutes the termination of a given instinctive behavior pattern or sequence.
A practice whereby tokens representing money, toys, candy, etc., are given as secondary reinforcers contingent upon certain desired behaviors or performances.
The procedure of presenting the conditioned stimulus without REINFORCEMENT to an organism previously conditioned. It refers also to the diminution of a conditioned response resulting from this procedure.
The strengthening of a response with a social reward such as a nod of approval, a parent's love or attention.
Animal searching behavior. The variable introductory phase of an instinctive behavior pattern or sequence, e.g., looking for food, or sequential courtship patterns prior to mating.
Administration of a drug or chemical by the individual under the direction of a physician. It includes administration clinically or experimentally, by human or animal.
The act of making a selection among two or more alternatives, usually after a period of deliberation.
Those factors which cause an organism to behave or act in either a goal-seeking or satisfying manner. They may be influenced by physiological drives or by external stimuli.
Learning that is manifested in the ability to respond differentially to various stimuli.
Subnormal intellectual functioning which originates during the developmental period. This has multiple potential etiologies, including genetic defects and perinatal insults. Intelligence quotient (IQ) scores are commonly used to determine whether an individual has an intellectual disability. IQ scores between 70 and 79 are in the borderline range. Scores below 67 are in the disabled range. (from Joynt, Clinical Neurology, 1992, Ch55, p28)
The teaching or training of those individuals with subnormal intellectual functioning.
The principle that items experienced together enter into a connection, so that one tends to reinstate the other.
A general term referring to the learning of some particular response.
The application of an unpleasant stimulus or penalty for the purpose of eliminating or correcting undesirable behavior.
Behavior which may be manifested by destructive and attacking action which is verbal or physical, by covert attitudes of hostility or by obstructionism.
The observable response an animal makes to any situation.
The application of modern theories of learning and conditioning in the treatment of behavior disorders.
Behavior in which persons hurt or harm themselves without the motive of suicide or of sexual deviation.
An object or a situation that can serve to reinforce a response, to satisfy a motive, or to afford pleasure.
An alkaloid ester extracted from the leaves of plants including coca. It is a local anesthetic and vasoconstrictor and is clinically used for that purpose, particularly in the eye, ear, nose, and throat. It also has powerful central nervous system effects similar to the amphetamines and is a drug of abuse. Cocaine, like amphetamines, acts by multiple mechanisms on brain catecholaminergic neurons; the mechanism of its reinforcing effects is thought to involve inhibition of dopamine uptake.
An outbred strain of rats developed in 1915 by crossing several Wistar Institute white females with a wild gray male. Inbred strains have been derived from this original outbred strain, including Long-Evans cinnamon rats (RATS, INBRED LEC) and Otsuka-Long-Evans-Tokushima Fatty rats (RATS, INBRED OLETF), which are models for Wilson's disease and non-insulin dependent diabetes mellitus, respectively.
Use of word stimulus to strengthen a response during learning.
The time from the onset of a stimulus until a response is observed.
Critical and exhaustive investigation or experimentation, having for its aim the discovery of new facts and their correct interpretation, the revision of accepted conclusions, theories, or laws in the light of newly discovered facts, or the practical application of such new or revised conclusions, theories, or laws. (Webster, 3d ed)
The relationship between the dose of an administered drug and the response of the organism to the drug.
Usually refers to the use of mathematical models in the prediction of learning to perform tasks based on the theory of probability applied to responses; it may also refer to the frequency of occurrence of the responses observed in the particular study.
Time schedule for administration of a drug in order to achieve optimum effectiveness and convenience.
Elements of limited time intervals, contributing to particular results or situations.
The phenomenon of an organism's responding to all situations similar to one in which it has been conditioned.
Relatively permanent change in behavior that is the result of past experience or practice. The concept includes the acquisition of knowledge.
The d-form of AMPHETAMINE. It is a central nervous system stimulant and a sympathomimetic. It has also been used in the treatment of narcolepsy and of attention deficit disorders and hyperactivity in children. Dextroamphetamine has multiple mechanisms of action including blocking uptake of adrenergics and dopamine, stimulating release of monamines, and inhibiting monoamine oxidase. It is also a drug of abuse and a psychotomimetic.
Schedule giving optimum times usually for primary and/or secondary immunization.
Behavioral responses or sequences associated with eating including modes of feeding, rhythmic patterns of eating, and time intervals.
The tendency to react to stimuli that are different from, but somewhat similar to, the stimulus used as a conditioned stimulus.
Disorders related or resulting from use of cocaine.
The ability to estimate periods of time lapsed or duration of time.
Any substances taken in by the body that provide nourishment.
A listing of established professional service charges, for specified dental and medical procedures.
Stimulation of the brain, which is self-administered. The stimulation may result in negative or positive reinforcement.
Innate response elicited by sensory stimuli associated with a threatening situation, or actual confrontation with an enemy.
The selection of one food over another.
Mental processing of chromatic signals (COLOR VISION) from the eye by the VISUAL CORTEX where they are converted into symbolic representations. Color perception involves numerous neurons, and is influenced not only by the distribution of wavelengths from the viewed object, but also by its background color and brightness contrast at its boundary.
Learning that takes place when a conditioned stimulus is paired with an unconditioned stimulus.
Relatively invariant mode of behavior elicited or determined by a particular situation; may be verbal, postural, or expressive.
A response to a cue that is instrumental in avoiding a noxious experience.
The observable, measurable, and often pathological activity of an organism that portrays its inability to overcome a habit resulting in an insatiable craving for a substance or for performing certain acts. The addictive behavior includes the emotional and physical overdependence on the object of habit in increasing amount or frequency.
An anxiolytic benzodiazepine derivative with anticonvulsant, sedative, and amnesic properties. It has also been used in the symptomatic treatment of alcohol withdrawal.
A disorder beginning in childhood. It is marked by the presence of markedly abnormal or impaired development in social interaction and communication and a markedly restricted repertoire of activity and interest. Manifestations of the disorder vary greatly depending on the developmental level and chronological age of the individual. (DSM-V)
Focusing on certain aspects of current experience to the exclusion of others. It is the act of heeding or taking notice or concentrating.
Theoretical representations that simulate psychological processes and/or social processes. These include the use of mathematical equations, computers, and other electronic equipment.
Signals for an action; that specific portion of a perceptual field or pattern of stimuli to which a subject has learned to respond.
Induction of a stress reaction in experimental subjects by means of an electrical shock; applies to either convulsive or non-convulsive states.
Collection of pleomorphic cells in the caudal part of the anterior horn of the LATERAL VENTRICLE, in the region of the OLFACTORY TUBERCLE, lying between the head of the CAUDATE NUCLEUS and the ANTERIOR PERFORATED SUBSTANCE. It is part of the so-called VENTRAL STRIATUM, a composite structure considered part of the BASAL GANGLIA.
Protective places of employment for disabled persons which provide training and employment on a temporary or permanent basis.
Drugs that block the transport of DOPAMINE into axon terminals or into storage vesicles within terminals. Most of the ADRENERGIC UPTAKE INHIBITORS also inhibit dopamine uptake.
The process whereby a representation of past experience is elicited.