A more sensitive test of irrelevant-incentive learning under conditions of satiation.

1953 ◽  
Vol 46 (4) ◽  
pp. 271-273 ◽  
Author(s):  
Howard H. Kendler ◽  
Seymour Levine
Keyword(s):  
Incentive Learning ◽  
Sensitive Test

Culturally Sensitive Test Norming: A Pilot Study

2010 ◽  
Author(s):  
Vanessa A. Laughter ◽  
Donald Viglione ◽  
Ronald Stolberg ◽  
Fernando Ortiz
Keyword(s):  
Pilot Study ◽  
Culturally Sensitive ◽  
Sensitive Test

The Flowing Clotting Time (Thrombus Formation Time) a Sensitive Test of Hypercoagulability

1969 ◽  
Vol 21 (03) ◽  
pp. 516-523
Author(s):  
H Engelberg ◽  
L. P Engelberg
Keyword(s):  
Thrombus Formation ◽  
Formation Time ◽  
Sensitive Test ◽  
Clotting Time ◽  
Reliable Test ◽  
Time Test ◽  
Plasma Heparin

SummaryThe addition of small amounts of extrinsic thromboplastin or of thrombin to blood in vitro accelerated coagulation more frequently and to a greater extent when determined by the flowing time test than when measured by the silicone clotting time, or by the blood or plasma heparin tolerance tests. Similar results were obtained when intrinsic thromboplastin formation was stimulated by contact with glass. However there was little or no acceleration of the flowing clotting time of plasma obtained from aliquots of the thromboplastin-containing blood. These results indicate that the flowing clotting time (thrombus formation time) of whole blcod is a more reliable test of hypercoagulability than previously described blood or plasma clotting time tests.

Schizophrenia, Parkinson’s disease, and attention deficit hyperactivity disorder

2018 ◽  
Author(s):  
Richard J. Beninger
Keyword(s):  
Parkinson’S Disease ◽  
Attention Deficit Hyperactivity Disorder ◽  
Parkinson's Disease ◽  
Attention Deficit ◽  
Antipsychotic Treatment ◽  
Incentive Learning ◽  
Dopaminergic Drugs ◽  
Dopaminergic Neurotransmission ◽  
Hyperactivity Disorder ◽  
Incentive Value

Schizophrenia, Parkinson’s disease, and attention deficit hyperactivity disorder (ADHD) discusses how hyperactive dopaminergic neurotransmission appears to underlie schizophrenia’s positive symptoms, loss of dopaminergic neurons in adulthood leads to Parkinson’s disease, and dopamine neuron hypofunction in childhood and adolescence may underlie ADHD. Positive schizophrenia symptoms may arise from excessive incentive learning that is gradually lost with antipsychotic treatment. Declarative learning and memory may contribute to delusions based on excessive incentive learning. Loss of responsiveness to environmental stimuli in Parkinson’s may result from a decrease of their conditioned incentive value and inverse incentive learning. Conditioned incentive stimuli not encountered while in a state of decreased dopaminergic neurotransmission may retain their incentive value, producing apparent kinesia paradoxa. Dopamine hypofunction in juveniles does not lead to hypokinesia but may result in loss of incentive learning that focuses attention. Pro-dopaminergic drugs have a calming effect in ADHD, presumably because they reinstate normal incentive learning.

Dopamine and inverse incentive learning

2018 ◽  
Author(s):  
Richard J. Beninger
Keyword(s):  
Dopamine Neurons ◽  
Incentive Learning ◽  
Repeated Presentation ◽  
Aversive Stimuli ◽  
Incentive Value ◽  
Conditioned Incentive Stimuli

Dopamine and inverse incentive learning explains that dopamine determines an incentive–value continuum. Novel and intense stimuli innately produce rapid dopamine neurons activation followed by inhibition. The repeated presentation of novel stimuli leads to a loss of this effect. Aversive stimuli, biologically important by definition, often deactivate dopamine neurons and may produce inverse incentive learning, leading to conditioned inverse incentive stimuli with decreased ability to elicit approach and other responses. The offset of aversion may increase the firing of dopamine neurons producing incentive learning about safety-related stimuli. Habituation to stimuli enhances their ability to produce inverse incentive learning, suggesting that inverse incentive learning may occur during habituation. In the end, there may be no “neutral” stimuli, only stimuli that lie on a continuum of incentive value from strong conditioned incentive stimuli to strong conditioned inverse incentive stimuli with most of the things we encounter in day-to-day life falling in between.

NOTE ON THE MEASUREMENT OF y-DEPENDENCE IN NEUTRINO-ELECTRON SCATTERING: A SENSITIVE TEST OF THE STANDARD MODEL

1993 ◽  
Vol 02 (04) ◽  
pp. 915-921 ◽  
Author(s):  
C. RANGACHARYULU ◽  
A. RICHTER
Keyword(s):  
Standard Model ◽  
Differential Cross Section ◽  
Cross Section ◽  
Electron Scattering ◽  
Differential Cross ◽  
Sensitive Test ◽  
Testing Ground ◽  
The Standard Model ◽  
Sensitive Testing

It is pointed out that the y-dependence of the differential cross-section for various types of neutrinos on the electron promises to be a sensitive testing ground of the electroweak Standard Model at KAON in Vancouver. Estimates of the flux requirements are given and the feasibility of such experiments is discussed.

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