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Fast Threshold Tests for Detecting Discrimination
[article]
2018
arXiv
pre-print
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Threshold tests have recently been proposed as a useful method for detecting bias in lending, hiring, and policing decisions. ...
For example, in the case of credit extensions, these tests aim to estimate the bar for granting loans to white and minority applicants, with a higher inferred threshold for minorities indicative of discrimination ...
We apply the threshold test to assess possible bias in decisions to search individuals for weapons. We also extend the threshold test to detect discrimination in the decision to stop an individual. ...
arXiv:1702.08536v3
fatcat:d6jn77y34rgz7dqxye5eaa7sc4
Specificity of fast perceptual learning in shape localisation tasks based on detection versus form discrimination
2010
Vision Research
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Here we examined the role of task on fast perceptual learning for shape localisation either in simple detection or based on form discrimination in different visual submodalities, using identical stimulus ...
Fast perceptual learning occurred for shape detection-based on luminance, motion and color differences but not for texture differences. ...
The correlation between texture detection and form discrimination was small but significant (0.305; p < 0.002). For the detection task the threshold was 2.2°(0.64 SE) from the first testing day on. ...
doi:10.1016/j.visres.2009.12.011
pmid:20043939
fatcat:bgl3hjydffdtlbkabpv6sc3jma
Perceptual-learning evidence for inter-onset-interval- and frequency-specific processing of fast rhythms
2018
Attention, Perception & Psychophysics
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Trained listeners (n=8) practiced anisochrony detection with a 100-ms IOI marked by 1-kHz tones, 720 trials per day for 7 days. ...
However, the learning on anisochrony detection did not generalize to temporal-interval discrimination with the trained IOI (100 ms) and marker frequency (1 kHz) or to anisochrony detection with an untrained ...
Acknowledgments We thank Paul Reber and Sazzad Nassir for their helpful comments on a preliminary draft of this paper. ...
doi:10.3758/s13414-018-1631-7
pmid:30488189
fatcat:zpgpjaykjzcntlc7f4bkxzgurm
Failure of direction discrimination at detection threshold for both fast and slow chromatic motion
1998
Optical Society of America. Journal A: Optics, Image Science, and Vision
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For the achromatic mechanism, direction discrimination was always possible at detection threshold. ...
For the red-green mechanism, we find that direction discrimination thresholds are significantly greater than detection thresholds at all stimulus speeds. ...
We thank Paul Maloney for many hours spent observing. ...
doi:10.1364/josaa.15.002945
fatcat:tlmionmhtjeivgvrnkg5zn3udi
Bipolar and schizophrenic patients differ in patterns of visual motion discrimination
2006
Schizophrenia Research
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We measured the psychophysical threshold for velocity discrimination and contrast detection (as a control task) in all subjects. ...
At higher velocities, both bipolar and schizophrenic patients showed elevated thresholds. All subjects showed normal contrast detection thresholds. ...
Steven Matthysse for his helpful comments, Dr. Laurie Teraspulsky and Ms. Anne Gibbs for their recruiting subjects, and Ms. Cinnamon Bidwell for the technical assistance. ...
doi:10.1016/j.schres.2006.06.004
pmid:16844346
pmcid:PMC1764462
fatcat:6qpdrrsaojb7lo5jp44pke7sly
The role of envelope beat cues in the detection and discrimination of second-order amplitude modulation (L)
2003
Journal of the Acoustical Society of America
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Am. 110, 2470-2478 ͑2001͔͒ by investigating the respective contribution of two temporal cues ͑fast modulation sideband and slow envelope beat cues͒ to the detection and discrimination of "second-order" ...
rate discrimination thresholds measured at f m у128 Hz. ...
For the highest SAM depth tested ͑24 dB above detection threshold͒, our results are in agreement with the study by Lee ͑1994͒ on discrimination of SAM rate with tonal carriers. ...
doi:10.1121/1.1523383
pmid:12558244
fatcat:h7zozmn5jzef5nr5bqb2jprc34
The study of calibration for the hybrid pixel detector with single photon counting in HEPS-BPIX
[article]
2020
arXiv
pre-print
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For the threshold trimming, the precise algorithm basing on LDAC characteristic and fast algorithm basing on LDAC scanning are proposed in this paper to study the performance of the threshold DACs which ...
The measurement results show that the fast algorithm could get the applicable threshold dispersion for a silicon pixel module and take a shorter time, while the precise algorithm could get better threshold ...
For the detectable energy, the GDAC can be set to the corresponding energy.
C. Threshold trimming The threshold voltage adjusted by GDAC values is global for a whole chip. ...
arXiv:2011.01342v1
fatcat:tdmhf675u5hplityhnjq4dk3ie
Effects of contrast and temporal frequency on orientation discrimination for luminance and isoluminant stimuli
1998
Vision Research
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When contrast was defined as multiples of detection thresholds, discrimination was slightly better for luminance gratings. ...
Thresholds for fast moving gratings were similar, irrespective of the definition of contrast. ...
In all cases thresholds for detection were equal to those for orientation discrimination. ...
doi:10.1016/s0042-6989(97)00240-x
pmid:9666970
fatcat:redkz6mml5fhfhcnfml7u5g4wm
Fast and High-Fidelity Readout of Single Trapped-Ion Qubit via Machine Learning Methods
[article]
2018
arXiv
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To obtain a 99 networks only take half of the detection time needed by traditional threshold or maximum likelihood methods. ...
An average readout fidelity of 99.5 within 171 μs is demonstrated on the embedded hardware system for ^171Yb^+ ion trap. ...
ACKNOWLEDGMENTS We would like to thank Yao Teng, Chang-Qing Feng and Yan-Wen Wu for their experimental support and helpful discussions with us. ...
arXiv:1810.07997v2
fatcat:bttlzjk5h5gd7dn7kawypjs7si
Using individual differences to test the role of temporal and place cues in coding frequency modulation
2015
Journal of the Acoustical Society of America
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measures of phase-locking (using dynamic interaural time difference, ITD, discrimination), level coding (using amplitude modulation, AM, detection), and frequency selectivity (using forward-masking patterns ...
This hypothesis was tested in a cohort of 100 young normal-hearing listeners by comparing individual sensitivity to slow-rate (1-Hz) and fast-rate (20-Hz) FM at a carrier frequency of 500 Hz with independent ...
/ detection thresholds and intensity discrimination/detection thresholds Dai et al., 1995) . ...
doi:10.1121/1.4935018
pmid:26627783
pmcid:PMC4654737
fatcat:4niaplwt5vcphamcuc6ta6oyhy
A 300 MHz Optical Discriminator-Counter
1982
IEEE Transactions on Nuclear Science
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Testing of the optical discriminator-counter was done by using an electrical pulse pair spaced 3 ns apart and also by a similar optical pulse pair generated by fast light-emitting diode. ...
Simulated optical events as close as 2.5 ns apart had been positively detected by using selected photomultlpliers and optimized discriminators. ...
generated for testing. ...
doi:10.1109/tns.1982.4335913
fatcat:eepoio5safbdhkzxcq462rapaa
The role of cochlear place coding in the perception of frequency modulation
2020
eLife
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We also used incoherent AM on two carriers to simulate place coding of FM and observed poorer sensitivity at high carrier frequencies and fast rates, two properties of FM detection previously ascribed ...
We tested this theory in listeners with normal and impaired hearing, spanning a wide range of place-coding fidelity. ...
and fast FM detection thresholds, respectively. ...
doi:10.7554/elife.58468
pmid:32996463
pmcid:PMC7556860
fatcat:ueqlr6qfivb5heqlmc5n3gadni
Disabled readers suffer from visual and auditory impairments but not from a specific magnocellular deficit
2002
Brain
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However, they did show impaired performance in both visual and auditory nonmagnocellular tasks requiring ®ne frequency discriminations. ...
Acknowledgements We wish to thank Avital Deutch for permission to use the tests she designed for reading single words and non-words, Ilana Ben-Dror and Sharon Peleg for the spoonerism test they designed ...
Lachman for their spelling tests. We also thank John Stein, Udi Zohary, Israel Nelken and David Moore for helpful comments on early versions of the manuscript. ...
doi:10.1093/brain/awf231
pmid:12244084
fatcat:gzkghc4hsjdczntbxuai26atwi
Are people who have a better smell sense, more affected from satiation?
2017
Brazilian Journal of Otorhinolaryngology
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Scores were higher on all items pertaining to olfactory identification, thresholds and discrimination during fasting vs. satiation (p < 0.05). ...
Discrimination (D) results: Discrimination scores were significantly higher during the fasting (median = 14.0) vs. satiation period ...
The ''Sniffin' Sticks'' olfactory test was administered during Ramadan fasting and during subsequent periods of satiation. Identification, threshold and discrimination scores were evaluated. ...
doi:10.1016/j.bjorl.2016.08.011
pmid:27658749
fatcat:6ccpvsacofa3zne4pajrokfqb4
Aging and visual motion discrimination in normal adults and schizophrenia patients
2006
Psychiatry Research
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The tasks included velocity discrimination and contrast detection. Thresholds for each of the two tasks were determined for each subject using psychophysical methods. ...
Schizophrenia patients showed significantly increased thresholds (degraded performance) for velocity discrimination compared with the controls. ...
Acknowledgments We thank the subjects for participation; Drs. Francine Benes, Deborah Levy, and Steven Matthysse for their helpful comments; Ms. Summer Sheremata for testing subjects; and Dr. ...
doi:10.1016/j.psychres.2005.05.019
pmid:17069895
pmcid:PMC1764463
fatcat:gzdzko7qrrcxtbgg7qbib5iasu
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