Results 221 to 230 of about 172,916 (261)
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Effects of stimulus complexity on simple spatial discriminations
Spatial Vision, 1990We have extended previous measurements on the detection of a target, differentiated in orientation or magnification from a number of identical reference elements. In these new experiments, we have used more than one class of reference element from which the target must be discriminated.
W F, Alkhateeb +2 more
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A Simple Method for Testing Odor Detection and Discrimination in Chicks
Physiology & Behavior, 1999A simple procedure for testing newly hatched chicks' responses to olfactory stimuli is described. Chicks that were hand held under a heatlamp became inactive and closed their eyes (as if asleep) within 2 min. Sleeping chicks displayed overt behavioral responses to an odorized q-tip (head shaking, beak clapping) that were not observed in awake chicks ...
Porter, R.H. +3 more
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Intensity discrimination of simple and complex stimuli
The Journal of the Acoustical Society of America, 1981Difference limens (DLs) were measured at 30, 60, and 75 dB SPL per critical band. The stimuli were a 1000-Hz tone, a partially-masked 1000-Hz tone, an 18-tone complex consisting of equally intense harmonics (F0 = 110 Hz) encompassing frequencies from 110 to 7260 Hz, and a uniformly masking noise.
Søren Buus, Mary Florentine
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A Simple Analysis of the Foster-Seely Discriminator
IEEE Transactions on Broadcast and Television Receivers, 1970This paper presents a simple, straightforward analysis of a Foster-Seeley discriminator. Because this analysis differs from the classical approach, it can be seen that there are two distinct sources of distortion. These sources are the resonant circuit of the discriminator and the output portion of the circuit. An analytic proof of the linearity of the
J. Helm, J. Grimes
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Chiral discrimination by simple gas sensors
Proceedings of International Solid State Sensors and Actuators Conference (Transducers '97), 2002The discrimination of optical isomers (enantiomers) in the gas phase has been performed using thickness shear mode resonators (TSMRs). The selective coatings included both enantiomers ((S)- and (R)-receptor) of a Chirasil-Val(R)-derivative (stationary phase material in gas chromatography (GC)) with octyl-side chains.
K. Bodenhofer, A. Hierlemann, W. Gopel
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A Simple Regularization Procedure for Discriminant Analysis
Communications in Statistics - Simulation and Computation, 2006Linear and quadratic discriminant analysis are likely to lead to unstable models and poor predictions in the presence of quasicolinearity among variables or in the case of the small sample and high-dimensional setting. A simple regularization procedure is proposed to cope with this problem.
Nocairi, H. +2 more
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Simple and complex discrimination learning.
2013My goal is to provide a general introduction to current behavior-analytic perspectives and methodology concerning simple and complex discrimination. My intended audience is broad—professional scientists and clinicians of all disciplines who want an informed introduction to relevant behavior-analytic methods and theory, students who are in the process ...
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A simple pulse-shape discrimination circuit
Nuclear Instruments and Methods, 1974Abstract A simple pulse-shape discrimination circuit is described. Some results are presented for NE213 organic liquid scintillators of different sizes. The influence of the lower threshold energy and the effect of high counting rates on the pulse-shape discrimination properties are shown.
P. Sperr +3 more
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Emergent simple discrimination in children: role of contiguity
Behavioural Processes, 1990Sixteen five- to seven-year-old children were exposed to two colour-form compounds. The compounds were presented successively. Pointing to the compounds was reinforced. Eight children received compounds A1B1 and A2B2; the others A1B2 and A2B1. This task was mixed with a two-choice discrimination task that provided the colours A1 and A2 simultaneously ...
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Stability of Emergent Simple Discriminations in Young Children
Journal of Experimental Child Psychology, 1994This study compared two procedures for establishing and reversing stimulus control transfer across simple discriminations in children. One procedure, stimulus contiguity, started with training of a color discrimination task, red omega (S+) vs yellow omega (S-).
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