Comparing Numerical Comparison Tasks: A Meta-Analysis of the Variability of the Weber Fraction Relative to the Generation Algorithm [PDF]
Frontiers in Psychology, 2018 Since more than 15 years, researchers have been expressing their interest in evaluating the Approximate Number System (ANS) and its potential influence on cognitive skills involving number processing, such as arithmetic.
Mathieu Guillaume, Amandine Van Rinsveld
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Moving the weber fraction: the perceptual precision for moment of inertia increases with exploration force. [PDF]
PLoS ONE, 2012 How does the magnitude of the exploration force influence the precision of haptic perceptual estimates? To address this question, we examined the perceptual precision for moment of inertia (i.e., an object's "angular mass") under different force ...
Nienke B Debats +3 more
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Significant variations in Weber fraction for changes in inter-onset interval of a click train over the range of intervals between 5 ms and 300 ms [PDF]
Frontiers in Psychology, 2014 It is a common psychophysical experience that a train of clicks faster than ca. 30 per second is heard as one steady sound, whereas temporal patterns occurring on a slower time scale are perceptually resolved as individual auditory events.
Pekcan eUngan +2 more
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Significant Inter-Test Reliability Across Approximate Number System Assessments [PDF]
Frontiers in Psychology, 2016 The approximate number system (ANS) is the hypothesized cognitive mechanism that allows adults, infants, and animals to enumerate large sets of items approximately. Researchers usually assess the ANS by having subjects compare two sets and indicate which
Nicholas Kurshan Dewind +1 more
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On the theory of Weber fractions [PDF]
Perception & Psychophysics, 1987 The Weber fraction is treated as part of an information theoretical view of perception. In this theory of sensory perception, subjective magnitude is related to the information transmissible from stimulus to perceiver. The derived psychophysical law can be approximated as a power or logarithmic law, depending on conditions.
K. Norwich
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Unequal Weber fractions for the categorization of brief temporal intervals [PDF]
Attention, Perception & Psychophysics, 2010 How constant is the Weber fraction (WF) for brief time intervals? This question was assessed in three experiments with two base durations (BDs), 0.2 and 1 sec, and with different ways of estimating the WF. In Experiment 1, the psychometric functions were drawn on the basis of 4, 8, or 12 comparison intervals with the shortest to longest duration ranges
S. Grondin
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Weber’s fraction for the intensity of pure tones presented binaurally [PDF]
Perception & Psychophysics, 1972 The Weber fraction, (I + Δ)/I, was measured for pure tones which were I presented either homophasically or antiphasically. For both stimuli, the Weber fraction was measured as a function of changes in the level of the standard tone Iand in the phase angle of addition between a test tone and the standard tone.
W. Yost
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Frequency of occurrence as a psychophysical continuum: Weber’s fraction, Ekman’s fraction, range effects, and the phi-gamma hypothesis [PDF]
Perception & Psychophysics, 1976 Using the continuum of frequency of occurrence of words in English, it was found that: (1) errors in judgment are distributed lognormally rather than normally, and therefore the standard method of calculating Weber’s fraction underestimates its definition, (2) Weber’s fraction has an extremely large value of 3.3, (3)Ekman’s fraction equals 1.81, not ...
D. Rubin
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A continued fraction of Ramanujan and some Ramanujan-Weber class invariants
Filomat, 2017 Summary: On Page 36 of his ``lost'' notebook, Ramanujan recorded four \(q\)-series representations of the famous Rogers-Ramanujan continued fraction. In this paper, we establish two \(q\)-series representations of Ramanujan's continued fraction found in his ``lost'' notebook.
Adiga, Chandrashekar +3 more
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Surface morphology effects on droplet spreading and rebound dynamics on subcooled superhydrophobic surfaces [PDF]
Scientific ReportsSubcooled superhydrophobic surfaces have notable applications in aerospace, energy, and refrigeration industries. Superhydrophobic behavior can be achieved with different microscale surface morphologies which can impact the water repellency and ...
Matic Može +9 more
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