(1) The interresponse-time reinforcement contingencies inherent in these schedules may actually mask the effects of overall reinforcement rate; thus differences in response rate as a function of reinforcement rate when interresponse-time reinforcement is eliminated may be underestimated.
(2) The effects of learning history were evident on sessions 4 and 5 when the same consequence was contingent upon the performance of all groups.
(3) However, during massed testing, all subjects trained with response contingent CS termination showed an overall extinction influence, which was most pronounced in the medial subgroup, although the laterals showed frequency control as well.
(4) Aggressive responding was maintained by contingent presentation of periods free of point subtractions, i.e., provocations.
(5) The aim in postoperative pain therapy is a time-contingent dosing after careful intravenous titration of the compound in the lower dose range during continuous supervision.
(6) The results indicate that behavior in transition states maintained by reinforcement contingencies in the radial maze is similar to that maintained by extended chained schedules, despite the fact that some of the stimuli controlling behavior in the maze are absent at the moment behavior is emitted.
(7) He said there were a sufficient number of shifts at Heathrow to maintain "a full immigration desk policy" and insisted the contingency planning for security at the Games, which had seen more than 18,000 military personnel called in, meant the government had enough troops in place or in reserve to make up for the G4S staffing fiasco.
(8) The bill is due to become law in the summer and is already forcing the party to make contingency plans including the possible sale of property.
(9) The level of disruption to services will vary widely and depend on the number of staff joining the strike, the mitigating impact of the NHS’s contingency planning and how many patients need acute care, such as A&E care or surgery.
(10) For each subject, reinforcers (money) were contingent upon responses on each of two panels: (1) a matching panel for working matching-to-sample problems, and (2) a sample panel for producing the sample stimulus.
(11) These interventions are effective, however, only as long as the contingencies are in effect.
(12) In contrast, rudiments of internal organs provided their own contingent of endothelial precursors, a process termed vasculogenesis.
(13) In this experiment, reward and punishment contingencies were directly manipulated to produce approach and withdrawal emotional states.
(14) Development of an aorta and pulmonary trunk with tricuspid semilunar valves appears to be contingent on the appearance of separate entwined ventricular ejection streams.
(15) In the present study, subjects with traumatic brain injury (TBI) were given four behavioural measures of executive function, two measures of posterior nonexecutive function, and a Contingent Negative Variation (CNV) task, a proposed electrophysiological index of frontal-lobe functioning.
(16) Using contingency table analysis, we found the following were significantly related to clinical hydrocephalus: increasing age; preexisting hypertension; admission blood pressure measurements; postoperative hypertension; admission CT findings of intraventricular hemorrhage, a diffuse collection of subarachnoid blood, and a thick focal collection of subarachnoid blood; posterior circulation site of aneurysm; focal ischemic deficits; use of antifibrinolytic drugs preoperatively; hyponatremia; admission level of consciousness; and a low score on the Glasgow outcome scale.
(17) Rats were trained to perform shuttle responses to a buzzer in four different situations: pseudoconditioning or D test (buzzers and footshocks presented at random), classical conditioning or DP test (buzzers and footshocks paired on every trial), avoidance without stimulus pairing or DC test (buzzer-shock intervals varied at random, shocks contingent upon non-emission of a shuttle response to the preceding buzzer), and standard two-way avoidance or DPC test (buzzers paired to shocks, but the latter omitted every time there was shuttling to the buzzer).
(18) The results support the assumption of the distraction arousal model used as an interpretation of these effects on contingent negative variation and suggest that high CO absorbing smokers possibly depend more on neuropharmacological effects of smoking than smokers with a low amount of CO absorption.
(19) Single-case methodology was used to evaluate the effectiveness of contingent reinforcement in promoting head posture in an adult brain-injured male.
(20) Experiment II indicated that a severely retarded male would also work at a high work rate under a self-determined reinforcement contingency.
Dependence
Definition:
(n.) The act or state of depending; state of being dependent; a hanging down or from; suspension from a support.
(n.) The state of being influenced and determined by something; subjection (as of an effect to its cause).
(n.) Mutu/// /onnection and support; concatenation; systematic ///er relation.
(n.) Subjection to the direction or disposal of another; inability to help or provide for one's self.
(n.) A resting with confidence; reliance; trust.
(n.) That on which one depends or relies; as, he was her sole dependence.
(n.) That which depends; anything dependent or suspended; anything attached a subordinate to, or contingent on, something else.
(n.) A matter depending, or in suspense, and still to be determined; ground of controversy or quarrel.
Example Sentences:
(1) The Na+ ionophore, gramicidin, had a small but significant inhibitory effect on Na(+)-dependent KG uptake, demonstrating that KG uptake was not the result of an intravesicular positive Na+ diffusion potential.
(2) Neutrons induced a dose-dependent cytotoxicity and mutation frequency in the AL cells.
(3) Phospholipid methylation in human EGMs is distinctly different from that in rat EGMs (Hirata and Axelrod 1980) in that the human activity is not Mg++-dependent, and apparent methyltransferase I activity is located in the external membrane surface.
(4) Between 25 and 40 degrees C, the thermal dependencies of VR and f were approximately constant (Q10's of 1.31 and 1.36 got VR and f, respectively).
(5) Cellulase regulation appears to depend upon a complex relationship involving catabolite repression, inhibition, and induction.
(6) We also show that proliferation of primary amnion cells is not dependent on a high c-fos expression, suggesting that the function of c-fos is more likely to be associated with other cellular functions in the differentiated amnion cell.
(7) We propose that this dependence on coexpression reflects the association between the LTA::STa hybrids and LTB subunits.
(8) These results show that the pathogenic phenotypes of MCF viruses are dissociable from the thymotropic phenotype and depend, at least in part, upon the enhancer sequences.
(9) Recently, the validity of the American Thoracic Society (ATS) standards for selection of spirometric test results has been questioned based on the finding of inverse dependence of FEV1 on effort.
(10) This death is also dependent on the presence of chloride and is prevented with the non-selective EAA antagonist, kynurenic acid, but is not prevented by QA.
(11) Single-case experimental designs are presented and discussed from several points of view: Historical antecedents, assessment of the dependent variable, internal and external validity and pre-experimental vs experimental single-case designs.
(12) Cyclic AMP stimulated phosphorylation by [gamma-32P]ATP of two proteins of apparent Mr = 20,000 and 7,000 that were concentrated in sarcoplasmic reticulum, but the stimulation was markedly dependent on the presence of added soluble cyclic AMP-dependent protein kinase.
(13) The PSB dioxygenase system displayed a narrow substrate range: none of 18 sulphonated or non-sulphonated analogues of PSB showed significant substrate-dependent O2 uptake.
(14) The dependence of fluorescence polarization of stained nerve fibres on the angle between the fibre axis and electrical vector of exciting light (azimuth characteristics) has been considered.
(15) Gel filtration of the 40,000 rpm supernatant fraction of a homogenate of rat cerebral cortex on a Sepharose 6B column yielded two fractions: fraction II with the "Ca(2+) plus Mg(2+)-dependent" phosphodiesterase activity and fraction III containing its modulator.
(16) In contrast, the effects of deltamethrin and cypermethrin promote transmitter release by a Na+ dependent process.
(17) 5 pregnant insulin-dependent diabetics were also studied.
(18) RNAs encoding a wild-type (RBK1) and a mutant (RBK1(Y379V,V381T); RBK1*) subunit of voltage-dependent potassium channels were injected into Xenopus oocytes.
(19) Photoirradiation of F1 in the presence of the analog leads to inactivation depending linearly on the incorporation of label.
(20) [Ca2+]i exhibited a sigmoidal dependence on [Na+]o. Mg2+, a competitive inhibitor of Na2+-Ca2+ antiport in these cells, antagonized the increase in [Ca2+]i produced by lowering [Na+]o.